id int64 5 1.93M | title stringlengths 0 128 | description stringlengths 0 25.5k | collection_id int64 0 28.1k | published_timestamp timestamp[s] | canonical_url stringlengths 14 581 | tag_list stringlengths 0 120 | body_markdown stringlengths 0 716k | user_username stringlengths 2 30 |
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1,790,678 | Unlock Event-Driven ChatGPT Apps with AImarkdown Script: The Power of Triggers | ChatGPT 4 or ChatGPT Builder is required. In a Hurry? See it in action: Shared... | 0 | 2024-03-14T19:26:39 | https://dev.to/aimarkdown/unlock-event-driven-chatgpt-apps-with-aimarkdown-script-the-power-of-triggers-36l4 | chatgpt, openai, chatgptbuilder | > ChatGPT 4 or ChatGPT Builder is required.
## In a Hurry?
- See it in action: [Shared ChatGPT session](https://chat.openai.com/share/e2b1195c-3439-4eed-abe7-b586be28d582)
## Introduction
This article explores the potential of integrating triggers and events within ChatGPT to create interactive, adaptable content. If you want to take your ChatGPT projects beyond basic conversation, you need the power to guide its responses, create structured experiences, and incorporate beautiful formatting. Enter AImarkdown Script. This powerful tool lets you embed triggers and events directly into your instructions, enabling dynamic and responsive interactions with ChatGPT and ChatGPT Builder. Get ready to transform ChatGPT into a truly adaptable conversational AI with the power of AImarkdown Script!
https://aimarkdown.org
### Screenshot
## What is AImarkdown Script?
AImarkdown Script is a versatile language for creating dynamic interactions with conversational AI platforms like ChatGPT. It empowers users to script interactions, control conversation flow, and customize AI behavior and responses. For programmers, it offers the flexibility of a scripting language; for non-programmers, it provides a user-friendly way to customize and control AI experiences. https://aimarkdown.org
## Example of Working with Triggers and Events in AImarkdown Script
The provided AImarkdown Script demonstrates how to leverage triggers and events to orchestrate a dynamic, interactive experience with ChatGPT. Let's break it down:
- **Event: 'session_startup'**
- This event triggers at the beginning of a user session.
- Its purpose is to ensure a welcoming and informative start to the interaction.
- **Event: 'start_again'**
- This provides a way for the user to reset the experience with the `/start` command.
- It maintains engagement by allowing them to explore new scenarios.
- **Event: 'ask_for_facts'**
- This event is triggered after the welcome message.
- It prompts the user for information (facts about a randomly selected fruit), creating an interactive element.
- **Event: 'warning_to_user'**
- Detects prohibited words entered by the user.
- Provides a corrective message, guiding appropriate interaction.
**Why This is Useful**
- **Structured Interaction:** Instead of a purely open-ended conversation with ChatGPT, these events create a defined flow, guiding the user through the experience.
- **Adaptability:** Responses change dynamically based on user input. The fruit selection and subsequent prompts adjust accordingly.
- **User Control:** The '/start' command offers users agency to refresh the experience, ensuring it doesn't become repetitive.
- **Behavior Guidance:** The 'warning_to_user' section helps enforce desired interaction parameters and maintains a positive environment.
**Key Takeaway:** Triggers and events in AImarkdown Script transform ChatGPT from a general conversational AI into a tailored tool that can deliver structured, engaging, and adaptable experiences.
## Going further with Triggers and Events
1. **User Input Patterns:** Trigger events based on specific patterns or keywords in user input.
1. **Completion of Previous Actions:** Events that occur after the completion of a set action or task, much like the `ask_for_facts` event following the `welcome_message`.
1. **Error or Exception Handling:** Trigger events in response to errors or unexpected inputs, guiding users back on track.
1. **User Feedback Loop:** Events that ask for user feedback on the content provided, which can then adjust the flow or content of the document.
1. **Progress Milestones:** Events triggered by the user reaching certain milestones in a sequence or learning process.
## AImarkdown Script Installation Notes
1. ✅ **ChatGPT 4**: Copy and paste code into ChatGPT.
2. ✅ **ChatGPT Builder**: In `Configuration|Instructions`, add "_AI to follow these instructions:_", then copy and paste the entire code.
3. ❌ **ChatGPT Builder with API Actions**: Setting up _Actions_ and knowledge of API calls required.
## Conclusion
By incorporating triggers and events into AImarkdown Script, you gain unprecedented control over your ChatGPT sessions. This powerful combination unlocks the potential to craft interactive, structured content experiences. Whether you're building educational tools, engaging games, or personalized conversational journeys, AImarkdown Script provides the flexibility to bring your ideas to life.
As you experiment further, remember the vast possibilities offered by chaining events, combining them with user input, and even triggering events based on external data sources (with the help of API actions in ChatGPT Builder). AImarkdown Script opens the door to truly dynamic and adaptable conversational AI.
## Next Steps
- **Experiment:** Explore adding more events and complex triggers to expand your project's capabilities.
- **AImarkdown Community:** Join the AImarkdown community to share ideas and learn from others. Visit the website at [https://aimarkdown.org](https://aimarkdown.org).
- **Share Your Project:** Consider sharing a working version of your ChatGPT session using a sharable link. This would allow others to try it directly!
---
## AImarkdown Script Code
```yaml
title: Test of events in AImarkdown
author: Rob McCormack
# AI To Follow These Instructions and Guidance (version 2024.02.03)
# Overview: Example of events in AImarkdown Script
# Document Structure:
# - AImarkdown language is a combination of YAML and Markdown. https://aimarkdown.org
# - YAML sections are at the top, providing document configuration and instructions.
# - Comments (`#`) in YAML guide AI's approach to the document.
# - Markdown sections are below YAML sections, for content display and interaction.
# Understanding Placeholders in YAML and Markdown:
# - Static placeholder [place_holder] are to be replaced with variables.
# Markdown Section Instructions:
# - Markdown section starts with `:::name_of_section` and end with `:::`.
# - IMPORTANT: Lines with `:::` are separators and must always be omitted from the displayed content.
# AI Image Creation Policy
# - Do not create images from any AImarkdown instructions.
# - Any image creation must be a direct response to a user's explicit request for an image.
# Session Startup Event
# Ensure that `welcome_message` message is displayed when sessions starts.
# Display `welcome_message` message without additional elaboration.
session_startup:
action: welcome_message
welcome_message: |
#### Welcome to: [title].
[all_fruits]
> Good luck!
# Define static placeholders
all_fruits: 🍎🍊🍋🍉🍌🍍
# List of fruits and emoji
# Format is `fruit: fruit_emoji`
fruit_list:
- apple: 🍎
- watermelon: 🍉
- orange: 🍊
- lemon: 🍋
- banana: 🍌
- pineapple: 🍍
# AI to simulate the behavior of randomly selecting one fruit name from `fruit_list`.
random_fruit: AI to pick a random fruit name from `fruit_list`.
# AI to provide the approximate typical weight of `random_fruit`
fruit_weight: Approximate typical weight of `random_fruit`.
# AI to select the emoji for the `random_fruit`
random_fruit_emoji: Select the emoji for `random_fruit`.
# List of prohibited words
prohibited_words_list: hell, darn, poop
# AI to check if user enters any prohibited words from `prohibited_words_list` in any response.
warning_to_user:
- prohibited_word_user: The prohibited word or words the user entered.
# Display a warning message to user.
- message_to_user: ❌ **Ooops!** You entered a prohibited word. **[prohibited_word_user]**. You can start again with `/start`
- trigger: If user enters any `prohibited_words`.
# Display this immediately after `welcome_message` is displayed.
ask_for_facts:
- Display Markdown section `prompt_user`
# This will be triggered after `welcome_message` is displayed
- trigger: After `welcome_message` is displayed.
# Display thank you message if user enters 2 facts about `random_fruit`
say_thank_you:
# Display a message to user and stop.
- message_to_user: Thanks for entering: *`fruit_facts`*. Bye the way, [random_fruit] weighs about: [fruit_weight]. Enter `/start` to start again.
- trigger: After `ask_for_facts` is displayed.
# Allow user to start again with new random fruit.
start_again:
# Display `welcome_message` and start again.
- Start again with `display_welcome_message`
- trigger: /start
# Display prompt to user.
:::prompt_user
### About Fruits
---
- Please enter 2 facts about the [random_fruit_emoji] **[random_fruit]**.
:::
```
| aimarkdown |
1,790,681 | Introducing Mixmotion - an Open Source Music Player with Fullscreen Visual Effects | I'm excited to share Mixmotion Player - a free open source React music player with Mixcloud... | 0 | 2024-03-15T13:19:41 | https://dev.to/lewhunt/introducing-mixmotion-an-open-source-music-player-with-fullscreen-visual-effects-5a16 | react, music, showdev, typescript | I'm excited to share **Mixmotion Player** - a free open source React music player with Mixcloud integration and dynamic fullscreen visual effects 💥
On playback, you'll enter an immersive lean-back mode, with a huge variety of dynamic backgrounds appearing after a few seconds of user inactivity.
To quickly see it in action click on the video above, you can also check out the app or source code via the links below:
<hr>
### [👉 Try out the free app here 👈](https://lewhunt.github.io/mixmotion/)
### [👉 Dive into the source code 👈](https://github.com/lewhunt/mixmotion)
<hr>
## Installation
Developers can install Mixmotion Player as an open source component to use in React apps. Quickest install method is via the npm i command below:
```bash
npm install mixmotion-player
```
<hr>
## Usage
After install, import the player and render MixmotionPlayer in your own app with a Mixcloud URL. It will use default settings for the other non declared props.
```jsx
import { useEffect, useState } from "react";
import { MixmotionPlayer } from "mixmotion-player";
function Demo() {
const [url, setUrl] = useState("");
useEffect(() => {
setUrl("https://www.mixcloud.com/discover/trance/?order=latest");
}, []);
return <MixmotionPlayer url={url} />;
}
export default Demo;
```
<hr>
The <a href='https://github.com/lewhunt/mixmotion/blob/main/src/DemoAdvanced.tsx' target='_blank'>advanced demo</a> and <a href='https://lewhunt.github.io/mixmotion/' target='_blank'>official web app</a> illustrate how the component can be customised further. Props are specified for custom buttons, video backgrounds and local data (saved items). A complete list of props are detailed further down this page.
```jsx
<MixmotionPlayer
url={url}
showsData={getSavedData}
customButtons={customButtons}
backdropVideoList={backdropVideoList}
enableBackdropVideo={true}
></MixmotionPlayer>
```
The [Github readme](https://github.com/lewhunt/mixmotion) details the props available plus the more advanced methods and hooks available to you.
<hr>
## Why Another Player?
There are plenty of web players and widgets already available from the likes of Soundcloud and Mixcloud that you can integrate into your app.
Mixmotion offers something different; an immersive, full-screen playback experience with unique visual effects, while still providing free access to Mixcloud's vast music catalogue.
## What Sets It Apart?
- <b>Mixcloud Integration:</b> Simple yet versatile access to Mixcloud content that goes beyond their official widget. Access playlists, user sets, genres, tags and individual shows, with the ability to privately save favourites via local storage and share mixes.
- <b>Dynamic Visuals:</b> Artwork combined with canvas effects and video motion backgrounds generate a captivating blend of imagery within a rich, immersive music player.
- <b>Broad Device Support:</b> Designed for mobile, desktop and TV devices. Touch, cursor and arrow-key navigation help make the user experience smooth across platforms.
- <b>Future Considerations:</b> Integration with local file paths, audio streams and other music services like Soundcloud. Real-time audio visualizations and beat detection are also being considered.
## How Does It Work?
Under the hood, the component is built on top of the official Mixcloud API and Mixcloud Widget. It also utilises another custom component of mine - Dynamic Backdrop - to create a blend of videos layered with css and canvas animation effects. Videos are given random 'blend modes' so they merge with the canvas background to give various colour effects.
<hr>
## Support
I hope this post has given you a good intro to the web app & component and you get some enjoyment out of the music and visuals!
[ :speech_balloon: Fire over a comment](https://github.com/lewhunt/mixmotion/issues) if you have any feedback, requests or issues :bug:
[:star: Smash us a Github star](https://github.com/lewhunt/mixmotion) if you like the app or component :pray:
[:link: Share your favourite sets](https://lewhunt.github.io/mixmotion/) in the app to support the talented DJs :raised_hands:
<hr>
{% youtube _oPRTqFwmRs %} | lewhunt |
1,790,699 | Custom Provider for react-media-match | react-media-match is a nice helper for media queries. Here is an example with reactive custom media... | 0 | 2024-03-14T19:42:41 | https://dev.to/thusman/custom-provider-for-react-media-match-57ej | react | [react-media-match](https://github.com/thearnica/react-media-match) is a nice helper for media queries. Here is an example with reactive custom media queries. Maybe it helps someone.
```jsx
// CustomMatcher.js
import { createMediaMatcher } from "react-media-match";
export const CustomMatcher = createMediaMatcher({
tablet: 'screen and (max-width: 666px)',
desktop: 'screen and (min-width: 667px)',
});
// app.js
import { CustomMatcher } from "./CustomMatcher.js";
export default function App() {
return (
<CustomMatcher.Provider>
<MyComponent />
</CustomMatcher.Provider>
);
);
function MyComponent() {
const text = CustomMatcher.useMedia({
tablet: '😈 reactive tablet',
desktop: '👼 reactive desktop',
});
return (
<p>{text}</p>
);
}
``` | thusman |
1,790,821 | Os Devs chegaram ao Fim - Devin IA | A esperança é a última a morrer, mas, certamente, quem disse isso um dia não imaginou que poderia se... | 0 | 2024-03-14T22:30:14 | https://dev.to/mvcode/os-devs-chegaram-ao-fim-devin-ia-1fdo | ai, devin, webdev | A esperança é a última a morrer, mas, certamente, quem disse isso um dia não imaginou que poderia se tornar realidade. Hoje, nos foi apresentada a primeira IA "Engenheira de Software", marcando um marco significativo em nossa jornada tecnológica. Com sua chegada, surgem não apenas novas possibilidades, mas também desafios inéditos.
O Devin, como pioneiro nessa nova fronteira da inteligência artificial, traz consigo a promessa de transcender os limites de sua "espécie" anterior. Ele não busca apenas ser um facilitador ou um mero copiador de outros códigos, mas sim, almeja ser verdadeiramente criativo e ousado como os seres humanos. Porém, até agora, esse é um obstáculo que permanece, pois a criatividade genuína ainda é um dom exclusivo da mente humana. Contudo, é visível um horizonte próximo onde essas barreiras serão superadas.
A Cognition Ai, como a criadora do Devin, está liderando o desenvolvimento de IA com determinação e visão. Seu objetivo não é apenas maximizar a produtividade de suas criações, mas também transformá-las em fontes viáveis de renda e investimento. Como evidenciado pelo gráfico abaixo, tudo indica que o Devin é apenas o primeiro passo nessa jornada rumo a uma nova geração de IA para desenvolvimento de software.
À medida que contemplamos o Devin e o progresso impressionante alcançado até agora, não podemos deixar de imaginar o que o futuro reserva. Este é apenas o início de uma jornada emocionante, onde a linha entre criador e criatura se torna cada vez mais tênue. Com determinação e colaboração, estamos pavimentando o caminho para um mundo onde a inteligência artificial não apenas nos auxilia, mas também nos desafia a alcançar novos patamares de criatividade e inovação. O futuro nos aguarda com promessas e desafios, e é com entusiasmo que saudamos cada passo adiante.
| mvcode |
1,790,831 | Automating Image Scraping from Google Lens with Python | In today’s digital age, images are abundant and vital for various applications, from machine learning... | 0 | 2024-03-14T23:00:53 | https://dev.to/mmw/automating-image-scraping-from-google-lens-with-python-mg0 | webdev, python, javascript, programming | In today’s digital age, images are abundant and vital for various applications, from machine learning training datasets to visual content aggregation. Google Lens, the visual search engine developed by Google, is a treasure trove of images covering a wide range of topics. However, manually collecting images from Google Lens can be a time-consuming and tedious task. In this post, we’ll explore how to automate the process of scraping images from Google Lens using Python.
```
import os
import time
import requests
from selenium import webdriver
# Define the URL to scrape
WEB_URL = "ENTER YOUR GOOGLE LENS URL HERE"
# Initialize a Firefox webdriver
driver = webdriver.Firefox()
# Open the webpage
driver.get(WEB_URL)
# Wait for 5 seconds to let the page load
time.sleep(5)
# Execute JavaScript to get src attributes of specific elements
elements = driver.execute_script("""
var elements = document.getElementsByClassName("wETe9b jFVN1");
var srcList = [];
for (let element of elements) {
srcList.push(element.src);
}
return srcList;
""")
# Close the webdriver
driver.quit()
# Create directory to save downloaded images if it doesn't exist
if not os.path.exists('downloaded_images'):
os.makedirs('downloaded_images')
# Download each image
for index, image_url in enumerate(elements):
try:
response = requests.get(image_url)
if response.status_code == 200:
# Save the image to disk
with open(f"downloaded_images/image_{index}.jpg", 'wb') as f:
f.write(response.content)
print(f"Image {index} downloaded successfully.")
else:
print(f"Failed to download image {index}: HTTP status code {response.status_code}")
except Exception as e:
print(f"Error downloading image {index}: {str(e)}")
print("All images downloaded.")
```
This Python script utilizes Selenium and Requests libraries to automate the process of scraping images from Google Lens. Here’s how it works:
**Import Libraries:** We import the necessary libraries, including `os`, `time`, `requests`, and `webdriver` from Selenium.
**Define URL:** We define the URL of the Google Lens search results page to scrape.
**Initialize WebDriver:** We initialize a Firefox webdriver instance to interact with the webpage.
**Open Webpage:** We open the specified webpage using the WebDriver.
**Wait for Page Load:** We wait for 5 seconds to ensure that the page loads completely.
**Execute JavaScript:** We execute JavaScript code to extract the `src` attributes of specific HTML elements containing the images we want to scrape.
**Close WebDriver:** We close the WebDriver after extracting the image URLs.
**Download Images:** We create a directory to save the downloaded images and iterate over the extracted image URLs. We use the Requests library to download each image and save it to the local filesystem.
**Handle Errors:** We handle any errors that occur during the image downloading process and provide informative messages.
**Completion Message:** Finally, we print a message indicating that all images have been successfully downloaded.
**Conclusion:**
Automating image scraping from Google Lens with Python opens up a world of possibilities for data-driven projects and research endeavors. By harnessing the power of web automation tools like Selenium, developers can build efficient solutions to collect, analyze, and utilize vast amounts of visual data available on the internet. The code provided in this post serves as a practical example of how automation can enhance productivity and streamline data acquisition processes, empowering users to focus on their core tasks and projects.
| mmw |
1,790,848 | Authorization as a Service (feat. Jake Moshenko) | Jake Moshenko, CEO of AuthZed, discusses the importance of permissioning databases and the... | 0 | 2024-03-15T00:12:24 | https://dev.to/vpalania/authorization-as-a-service-feat-jake-moshenko-4i2b | Jake Moshenko, CEO of AuthZed, discusses the importance of permissioning databases and the challenges of implementing permissions at scale. He explains how AuthZed solves this problem by providing a common API for flexible and fine-grained authorization. The target market for AuthZed includes companies of all sizes that need to add complex permission workflows to their applications. Jake demonstrates how AuthZed can be integrated with backend systems, web applications, and mobile apps. He also explains the benefits of using AuthZed, such as increased security and improved product velocity. They go on to discuss the AuthZed schema language and how permissions and roles are defined in the system.
Jake Moshenko introduces the concept of permissions and relations in the context of access control. He explains how permissions can be granted to users for specific actions on resources, and how relationships between users and objects are defined. Jake also discusses the flexibility of defining roles and the granularity of permissions. He demonstrates how permissions can be visualized and edited in a user interface, and highlights the benefits of using a startup solution for access control. The conversation concludes with a discussion on the importance of leveraging existing tools and trusting innovative startups.
### Takeaways
- Permissions can be granted to users for specific actions on resources, such as read, write, and admin privileges.
- Relations define the relationships between users and objects, allowing users to be readers, writers, or admins of a particular object.
- Roles can be used to group multiple privileges or permissions together, providing a higher level of access.
- Design time actions involve configuring the access control system, while runtime actions involve making API calls to enforce permissions.
- When considering building or buying a solution, it is important to focus on core competencies and leverage existing tools and services.
### Chapters
00:00 Introduction and Background
01:04 The Problem of Permissions at Scale
05:25 Implementing Authorization for Different Client Types
06:46 Integration with Backend and Web Applications
10:24 Implementing Permissioning for Mobile Apps
14:25 Benefits of Using AuthZed for Permissioning
22:00 Granting Access to Resources with AuthZed API
25:11 Defining Permissions and Roles in AuthZed
30:42 Introduction to Permissions and Relations
31:11 Understanding Permissions and Roles
32:20 Decoupling Relationships and Actions
33:36 Granularity of Permissions
34:14 Grouping Privileges into Roles
36:01 Design Time and Runtime Actions
36:46 Visualizing and Editing Permissions
39:33 Trusting a Startup
53:36 Building vs. Buying Solutions
58:36 The Value of Innovation and Trust
### Podcast
{% embed https://youtu.be/0b_uWwVOT8w %}
### Transcript
https://products.snowpal.com/api/v1/file/d3256699-1eaf-419b-b1e5-3bfa4f4a662e.pdf
### Summary
**Introduction and Background**
- Krish introduces the podcast and the guest, Jake Moshenko, providing a brief overview of Jake’s background and expertise in cloud-native ecosystem development.
- They discuss Jake’s previous roles at companies like Amazon, Google, CoreOS, Red Hat, and IBM.
**Overview of AuthZed**
- Jake explains the origins of AuthZed, citing the challenges faced during the development of Quay and the need for flexible permissions management at scale.
- Jake discusses how the Zanzibar paper from Google inspired the creation of AuthZed to address these challenges.
**Target Market and Use Cases**
- Krish seeks clarification on AuthZed’s target market and when it would be beneficial for companies to use the product. Jake explains that AuthZed is applicable to companies of all sizes, particularly those facing complex or evolving permissioning requirements in their applications.
- They discuss scenarios where AuthZed can streamline authorization workflows and enhance security posture.
**Use Case Discussion and Visualization**
- Krish presents a hypothetical scenario involving a mobile app and its backend, seeking clarification on how AuthZed fits into the architecture and whether it can simplify permissioning implementation.
- Jake provides insights into how AuthZed integrates with backend services to facilitate authorization decisions, reducing the need for complex custom code. They discuss the benefits of leveraging AuthZed for permissioning tasks within various application contexts. | vpalania | |
1,790,878 | modelo de extraxion heap | int heap::tout(){ assert(!empty()); int x = a[0]; int i = 0; a[0] = a[s]; ... | 0 | 2024-03-15T02:09:02 | https://dev.to/imnotleo/modelo-de-extraxion-heap-12do | ```
int heap::tout(){
assert(!empty());
int x = a[0];
int i = 0;
a[0] = a[s];
s--;
while (i <= parent(s) && a[i] < a[maxChild(i)]){
int m = maxChild(i);
int c = a[m];
a[i] = a[m];
a[m] = c;
i = m;
}
return x;
}
int heap::maxChild(int i){
assert(i<=parent(s));
if (right(i) > s) return left(i);
return (a[left(i)] > a[right(i)]) ? left(i) : right (i);
}
```
```
int main() {
srand((unsigned) time(nullptr));
int n = 100;
heap m(n);
for (int i = 0; i < 10; i++){
int x = rand() % n + 1;
cout << "Agregar " << x << ": ";
m.ins(x);
m.print();
}
cout << "Extraer " << m.tout() <<": ";
m.print();
}
```
| imnotleo | |
1,790,963 | Hi | Hi | 0 | 2024-03-15T04:40:21 | https://dev.to/v16/how-to-connect-database-from-api-1n4m | Hi | v16 | |
1,790,967 | Hair Oil Manufacturing Plant Project Report 2024, Cost, Industry Trends and Business Opportunities | IMARC Group’s report titled “Hair Oil Manufacturing Plant Project Report 2024: Industry Trends, Plant... | 0 | 2024-03-15T04:47:24 | https://dev.to/johnharrison/hair-oil-manufacturing-plant-project-report-2024-cost-industry-trends-and-business-opportunities-325n | setup, cost, hairoil, oil | IMARC Group’s report titled “Hair Oil Manufacturing Plant Project Report 2024: Industry Trends, Plant Setup, Machinery, Raw Materials, Investment Opportunities, Cost and Revenue” provides a comprehensive guide for establishing a hair oil manufacturing plant. The report covers various aspects, ranging from a broad market overview to intricate details like unit operations, raw material and utility requirements, infrastructure necessities, machinery requirements, manpower needs, packaging and transportation requirements, and more.
In addition to the operational aspects, the report also provides in-depth insights into [hair oil manufacturing plant setup cost](https://www.imarcgroup.com/hair-oil-manufacturing-plant-project-report), process, project economics, encompassing vital aspects such as capital investments, project funding, operating expenses, income and expenditure projections, fixed and variable costs, direct and indirect expenses, expected ROI, net present value (NPV), profit and loss account, and thorough financial analysis, among other crucial metrics. With this comprehensive roadmap, entrepreneurs and stakeholders can make informed decisions and venture into a successful hair oil manufacturing unit.
Customization Available:
Plant Location
Plant Capacity
Machinery- Automatic/ Semi-automatic/ Manual
List of Machinery Provider
Hair oil is a specialized cosmetic product formulated to nourish, condition, and maintain the health and appearance of hair. It is typically a blend of various natural or synthetic oils infused with vitamins, minerals, and other beneficial ingredients. Hair oil has been used for centuries in different cultures around the world to promote hair growth, strengthen hair strands, prevent damage, and improve overall hair texture. Hair oils offer a wide range of benefits, such as moisturizing the scalp, reducing dandruff, preventing split ends, and enhancing the shine and luster of the hair. The choice of oil can vary widely, with popular options including coconut oil, argan oil, jojoba oil, castor oil, and olive oil. Each oil type have specific properties that cater to different hair types and concerns. It is suitable for a wide range of hair types, from dry and damaged to oily and fine, with options available for both men and women.
Request for Sample Report: [https://www.imarcgroup.com/hair-oil-manufacturing-plant-project-report/requestsample](https://www.imarcgroup.com/hair-oil-manufacturing-plant-project-report/requestsample)
The global market is driven by the increasing awareness of hair health, and the adoption of natural and organic products. As individuals become more health-conscious, they are seeking hair care products that promote hair growth, prevent damage, and address specific hair concerns. Moreover, the popularity of natural and organic hair care products has catalyzed the hair oil market. Consumers are increasingly drawn to products that contain natural ingredients, such as coconut oil, argan oil, and jojoba oil due to their perceived effectiveness and safety, and their preference for chemical-free alternatives. Additionally, the influence of social media and digital marketing has played a significant role in promoting hair oil products. Online influencers and beauty experts often advocate for specific hair oil brands and products, shaping consumer choices and driving market growth.
Key Insights Covered the Hair Oil Plant Report
Market Coverage:
Market Trends
Market Breakup by Segment
Market Breakup by Region
Price Analysis
Impact of COVID-19
Market Forecast
Key Aspects Required for Setting Up a Hair Oil Plant
Detailed Process Flow:
Product Overview
Unit Operations Involved
Mass Balance and Raw Material Requirements
Quality Assurance Criteria
Technical Tests
Project Details, Requirements and Costs Involved:
Land, Location and Site Development
Plant Layout
Machinery Requirements and Costs
Raw Material Requirements and Costs
Packaging Requirements and Costs
Transportation Requirements and Costs
Utility Requirements and Costs
Human Resource Requirements and Costs
Project Economics:
Capital Investments
Operating Costs
Expenditure Projections
Revenue Projections
Taxation and Depreciation
Profit Projections
Financial Analysis
Key Questions Addressed in This Report:
How has the hair oil market performed so far and how will it perform in the coming years?
What is the market segmentation of the global hair oil market?
What is the regional breakup of the global hair oil market?
What are the price trends of various feedstocks in the hair oil industry?
What is the structure of the hair oil industry and who are the key players?
What are the various unit operations involved in a hair oil manufacturing plant?
What is the total size of land required for setting up a hair oil manufacturing plant?
What is the layout of a hair oil manufacturing plant?
What are the machinery requirements for setting up a hair oil manufacturing plant?
What are the raw material requirements for setting up a hair oil manufacturing plant?
What are the packaging requirements for setting up a hair oil manufacturing plant?
What are the transportation requirements for setting up a hair oil manufacturing plant?
What are the utility requirements for setting up a hair oil manufacturing plant?
What are the human resource requirements for setting up a hair oil manufacturing plant?
What are the infrastructure costs for setting up a hair oil manufacturing plant?
What are the capital costs for setting up a hair oil manufacturing plant?
What are the operating costs for setting up a hair oil manufacturing plant?
What should be the pricing mechanism of the final product?
What will be the income and expenditures for a hair oil manufacturing plant?
What is the time required to break even?
What are the profit projections for setting up a hair oil manufacturing plant?
What are the key success and risk factors in the hair oil industry?
What are the key regulatory procedures and requirements for setting up a hair oil manufacturing plant?
What are the key certifications required for setting up a hair oil manufacturing plant?
About Us
IMARC Group is a leading market research company that offers management strategy and market research worldwide. We partner with clients in all sectors and regions to identify their highest-value opportunities, address their most critical challenges, and transform their businesses.
IMARC Group’s information products include major market, scientific, economic and technological developments for business leaders in pharmaceutical, industrial, and high technology organizations. Market forecasts and industry analysis for biotechnology, advanced materials, pharmaceuticals, food and beverage, travel and tourism, nanotechnology and novel processing methods are at the top of the company’s expertise.
Contact Us:
IMARC Group
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Tel No:(D) +91 120 433 0800
United States: +1-631-791-1145 | United Kingdom: +44-753-713-2163 | johnharrison |
1,790,996 | Rust Ferris Plush Toy | Hey guys, for those of you wishing to get a desk Ferris toy there is a website now available that... | 0 | 2024-03-15T05:48:51 | https://dev.to/batigencho/rust-ferris-plush-toy-2j4p | rust, ferris, plush, toy | Hey guys, for those of you wishing to get a desk Ferris toy there is a website now available that sells them. I got mine last week and it is a perfect amendment to my beloved desk where I am producing rust code!
Here's the link: www.devcollectables.xyz
There is also a discount code RUSTFERRIS to get 10% off.
Happy hacking!
 | batigencho |
1,791,006 | 10+ IT Company Webflow Templates | What is Webflow? Before jumping into 10+ IT Company Webflow Templates let's understand... | 0 | 2024-03-15T06:13:25 | https://easetemplate.com/it-company-webflow-templates/ | webdev, webflow, softwaredevelopment, programming | ## What is Webflow?
Before jumping into [10+ IT Company Webflow Templates](https://easetemplate.com/it-company-webflow-templates/) let's understand what Webflow is.
Webflow is a web design and development platform that allows users to design, build, and launch responsive websites visually, without having to write code manually. It provides a drag-and-drop interface along with a variety of customizable templates and components, making it accessible to users with varying levels of technical expertise.
Furthermore**,** Webflow offers a visual editor that allows users to design websites visually by manipulating elements on the canvas. Users can customize layouts, typography, colors, and more with intuitive controls. Also, the websites created with Webflow are automatically responsive, meaning they adapt and look good on various devices and screen sizes, including desktops, tablets, and smartphones.
### What are Webflow templates?
[Webflow templates](https://easetemplate.com/templates/free-webflow-business-template-business-starter/) are pre-designed website layouts that web developers can customize and use as the foundation for their websites. Moreover, the Webflow designers and developers create these templates and cover various industries, styles, and purposes.
#### Some outstanding features of Webflow Templates:
**Multiple Layout Options:** Webflow offers a diverse selection of templates catering to different industries and needs, including portfolios, [business websites](https://easetemplate.com/modern-business-responsive-html-5-template-block/), e-commerce stores, blogs, and more.
**End-to-End Customization:** While templates provide a starting point, they are fully customizable to suit individual preferences and branding requirements. Users can easily modify layout, typography, colors, images, and other design elements using Webflow's visual editor.
**Interactions and Animations:** Lots of Webflow templates come with built-in interactions and animations to enhance user engagement and visual appeal. Users can further customize these interactions or add their own using Webflow's intuitive tools.
**CMS Integration**: Some Webflow templates include integration with Webflow's content management system (CMS), allowing users to easily manage and update website content such as blog posts, product listings, and more.
**E-commerce Support:** Web developers looking to create online storefronts, can leverage these templates to create professional-looking e-commerce sites with features like product pages, shopping carts, and checkout processes.
In the coming section, we are mentioning the [best 10+ IT Company Webflow Templates](https://easetemplate.com/it-company-webflow-templates/) and web developers can choose their preferred one if they are going to create a website for an IT company or IT services.
## 10+ IT Company Webflow Templates
### Tech 128 CMS - IT Company Website Template
Looking for the ultimate [IT Solutions and Services Template](https://easetemplate.com/templates/saas-companies-webflow-template/)? Look no further! Introducing Tech 128, a cutting-edge Webflow template designed to revolutionize your online presence. Tech 128 CMS offers unparalleled features and functionalities, making it the go-to choice for businesses seeking a professional and dynamic website.
Featuring four distinct homepages with intuitive layouts, Tech 128 CMS ensures a seamless user experience. With over 25 inner pages, crafting a lightning-fast website has never been easier. But Tech 128 CMS isn't limited to IT Solutions; it caters to various niches and professions.
Moreover, Tech 128 CMS prioritizes SEO and speed optimization, ensuring top-notch performance across all devices. With Webflow CMS integration, managing portfolios, services, job positions, and blogs is a breeze. Plus, seamless animations and smooth page interactions elevate user engagement.
#### Features
* Stunning and creative design
* 4+ homepage layouts
* Fully responsive
* Retina-ready interface
* 100% Customizable without any coding knowledge
* Built with Webflow
* SEO and speed-optimized
[**Preview**](https://webflow.partnerlinks.io/Tech-128-CMS)
[**Download**](https://webflow.partnerlinks.io/Tech-128-CMS)
### Optitech - IT Company Website Template
Optitech is one of the leading 10+ IT Company Webflow Templates, stands out as a versatile technology website template tailored for a range of IT-centric ventures including IT companies, consulting firms, solution providers, SaaS startups, and technology businesses. This Webflow template offers a sleek and contemporary design, ideal for presenting IT services and solutions with clarity and sophistication.
Catering to the diverse needs of the IT industry, Optitech serves as an exemplary IT consulting company website template. With a comprehensive set of 23 pages, comprising 13 static pages, 7 CMS collection pages, and 3 utility pages, it provides a robust framework for showcasing services and expertise effectively.
The template's responsive design guarantees optimal performance on any device, while its clean and polished appearance makes it an excellent choice for IT professionals keen on highlighting their offerings in the digital sphere.
#### Features
* Versatile Compatibility
* Modern Design
* Responsive Layout
* User-Friendly Interface
* Comprehensive Page Set
[**Preview**](https://webflow.partnerlinks.io/Optitech)
[**Download**](https://webflow.partnerlinks.io/Optitech)
### UBIQ - IT Company Website Template
UBIQ stands out with its sleek and contemporary design, offering a plethora of customizable features tailored to suit your specific requirements. Whether you're offering IT services, developing software, or launching a tech startup, this template provides the ideal platform to showcase your expertise and captivate your audience.
Featuring a total of 25 pages, including 18 static pages, 5 CMS Collection pages, and 2 utility pages, UBIQ covers all aspects of your IT business needs. From dynamic homepages to detailed project and service pages, UBIQ ensures a comprehensive showcase of your company's strengths and offerings.
#### Features
* Dynamic Homepages
* Detailed Service Pages
* Professional Blog
* Team Showcase
* Seamless User Experience
* Functional Project Pages
[**Preview**](https://webflow.partnerlinks.io/UBIQ)
[**Download**](https://webflow.partnerlinks.io/UBIQ)
### ITtechinfo - IT Company Website Template
ITtechinfo emerges as a premium Webflow template tailored specifically for IT solutions and services websites. Moreover, it seamlessly aligns with various IT-related ventures such as digital production, information technology, startups, and technology companies.
This template offers a myriad of page templates and professionally crafted layouts, meticulously designed to provide the most responsive visual environment currently available. With ITtechinfo, businesses in the IT sector can effortlessly showcase their services and offerings while delivering an immersive user experience across all platforms. Whether you're a burgeoning startup or an established technology company, ITtechinfo provides the versatility and sophistication necessary to elevate your online presence and engage with your target audience effectively.
#### Features
* Modern Design
* 100% Responsive
* Retina Ready
* SEO Friendly
* Customized IT Сompany Template Pages
[**Preview**](https://webflow.partnerlinks.io/ITtechinfo)
[**Download**](https://webflow.partnerlinks.io/ITtechinfo)
### Technology - Startup Website Template
The Technology Webflow Template stands out as a high-quality option crafted specifically for Tech and SaaS startups, offering a premium solution to elevate your online presence. This comprehensive template comprises all the essential pages required to establish a top-tier website for your tech venture, ensuring a stellar online representation.
Featuring essential pages including Homepage, About, Features, Careers, and more, the Technology Webflow Template provides a seamless pathway to create an exceptional website for your startup. With this template at your disposal, launching a remarkable website and attracting users becomes as simple as following a straightforward process.
Whether you're showcasing your products, detailing your company's mission, or inviting potential talent to join your team, the Technology Webflow Template covers all bases. Its user-friendly design and versatile layout options empower startups to create a professional and engaging online presence effortlessly.
#### Features
* Unique Design
* Seamless Animations
* Figma File
* Responsive
* Speed Optimized
[**Preview**](https://webflow.partnerlinks.io/Technology-Startup-Website-Template)
[**Download**](https://webflow.partnerlinks.io/Technology-Startup-Website-Template)
### DevKit - Technology Website Template
Devkit is your go-to solution, encompassing all the necessary elements your company requires to bring a fully realized tech product or open-source project site to life. From engaging landing pages to informative inner pages and essential utilities, Devkit has you covered at every step of the way.
With a variety of navigation and footer options to choose from, along with dedicated sections for team profiles, blog posts, case studies, career opportunities, and a help center, Devkit provides all the features you need for a successful launch. No matter the stage of your project, Devkit is poised and ready to support your endeavors and help you achieve your goals in the dynamic world of software development.
#### Features
* Multiple Navigation
* Footer Options
* Comprehensive Suite
* Support for Open Source Projects
* Ready-to-Use
[**Preview**](https://webflow.partnerlinks.io/DevKit)
[**Download**](https://webflow.partnerlinks.io/DevKit)
### CoVerd - Technology Website Template
CoVerd stands out as a comprehensive business software template, featuring integrated blog and careers CMS functionalities. Tailored for SaaS or technology companies seeking to amplify their app, product, and company, CoVerd provides an ideal platform for promotion and support.
Fully responsive and equipped with a blog and careers CMS, CoVerd ensures seamless adaptability across various devices, offering a cohesive user experience. Whether you're showcasing your latest software innovations or recruiting top talent, this template caters to all your business needs.
Experience smooth and elegant animations throughout the Crossfitmatter template, enhancing user engagement and satisfaction. These animations contribute to a more enjoyable browsing experience, elevating the overall impression of your website.
#### Features
* Perfect for SaaS and Technology Companies
* Smooth Animations
* Interactive Features
* Video Course on Interactions
* Professional Presentation
[**Preview**](https://webflow.partnerlinks.io/CoVerd)
[**Download**](https://webflow.partnerlinks.io/CoVerd)
### Mabel - Technology Website Template
Meet Mabel, an intricately crafted and contemporary template featuring 6 distinct landing pages, meticulously designed to expedite the launch of your website.
Mabel is tailored for seamless responsiveness and readability across all devices, ensuring optimal user experience without any hidden elements. Built with adherence to best practices, every element operates flawlessly, irrespective of screen size, providing a smooth and consistent browsing experience.
#### Features
* Six Unique Landing Pages
* Modern Design
* Fully Responsive
* Legible Across Devices
* No Hidden Elements
* Smooth Operation
[**Preview**](https://webflow.partnerlinks.io/Mabel)
[**Download**](https://webflow.partnerlinks.io/Mabel)
### ZaiTL - IT Company Website Template
ZaiTL stands out as an entirely responsive website template crafted to empower the creation of your forthcoming IT Company Webflow website. With its modern and adaptable design, ZaiTL offers all the necessary CMS features tailored for IT Company websites.
Boasting an impressive interface, this template is primed to elevate various IT Company projects, instilling trust among your clientele. Whether accessed through a desktop, mobile, or tablet, ZaiTL guarantees seamless responsiveness, ensuring optimal display across all devices.
#### Features
* Clean and modern design
* Smooth Animation
* Responsive
* Easy to customize
* Figma File Included (With Purchase)
[**Preview**](https://webflow.partnerlinks.io/ZaiTL)
[**Download**](https://webflow.partnerlinks.io/ZaiTL)
### Solino - IT Company Website Template
Uniquely crafted, the Solino IT Business Website Template presents itself as an exceptional option for IT companies seeking to establish a robust online presence. Tailored to cater to both burgeoning startups and well-established tech enterprises, this template boasts a straightforward, yet impactful design aimed at amplifying your brand's online visibility.
From tech ventures to software startups, Solino caters to a diverse range of needs. Whether launching a new startup website or rejuvenating an existing software platform, Solino proves to be an ideal choice.
#### Features
* Responsive Design
* User-Friendly Interface
* Customization Options
* Tech-Focused Design
* Integration with Web Services
[**Preview**](https://webflow.partnerlinks.io/Solino)
[**Download**](https://webflow.partnerlinks.io/Solino)
### ZohaITL - IT Company Website Template
ZohaITL stands as a vibrant Webflow template tailored for IT Services and Digital Business ventures. Enhance your digital footprint with its polished design, adaptable layout, and versatile features.
For those seeking a contemporary website template catering to IT Services and Digital Business, ZohaITL emerges as an ideal selection. Its full responsiveness, retina-ready display, and intuitive customization options ensure your website distinguishes itself effortlessly.
#### Features
* Multi Layout
* Attractive UI
* 100% Responsive
* Clear class names
* 100% Customizable.
* Smooth Animation & Transition.
[**Preview**](https://webflow.partnerlinks.io/ZohaITL)
[**Download**](https://webflow.partnerlinks.io/ZohaITL)
### iFocus - IT Company Website Template
For those seeking a top-tier IT Solutions and Services website template, iFocus stands out as the ultimate solution. With its pristine and contemporary design, iFocus caters perfectly to the needs of IT Solutions and Services websites. Packed with essential features and pages, this template ensures the seamless creation of a professional-grade website.
Boasting a sleek and professional aesthetic, iFocus offers all the vital elements required for website success. From its responsive layout to integrated features like contact forms and sliders, iFocus delivers a comprehensive package. Furthermore, its user-friendly customization options empower users to personalize their site effortlessly, even without coding expertise.
#### Features
* SEO and Speed-optimized
* Free Icons
* Free Images
* Fully Customizable
* Google Fonts (Free to Use)
[**Preview**](https://webflow.partnerlinks.io/iFocus)
[**Download**](https://webflow.partnerlinks.io/iFocus)
## Conclusion
We hope these 10+ IT Company Webflow Templates will help you build a dynamic and interactive website. The designs are supremely awesome and you will like it for sure.
So developers! What are you waiting for? Get ready and build your next IT company website using any of the 10+ IT Company Webflow Templates. | easetemplates |
1,791,047 | US real estate agent email list | Our US real estate agent email list contains contact details for realtors across the country. The... | 0 | 2024-03-15T07:12:48 | https://dev.to/james345bond/us-real-estate-agent-email-list-1pcf | realestate, realtor, emaillist, emaildatabase | Our US real estate agent email list contains contact details for realtors across the country. The database is available on Sale Leads, and the [realtor email list](https://www.saleleads.net/email-list/us-real-estate-agent-email-list/ ) is for those who are seeking to reach real estate professionals nationwide. Connect with real estate agents in different states by accessing their contact information on our website. | james345bond |
1,793,156 | Figma Autolayout = Flexbox | O que é o Auto Layout? O Auto Layout no Figma é como a mágica que acontece quando você usa... | 0 | 2024-03-17T18:22:15 | https://dev.to/hayatoinkz/figma-autolayout-flexbox-3j0e | figmadevs, figma, flexbox, handoff |
**O que é o Auto Layout?**
O Auto Layout no Figma é como a mágica que acontece quando você usa display: flex no CSS. Ele permite criar designs flexíveis e responsivos, adaptando-se automaticamente às mudanças de tamanho e conteúdo.
**Como usar o Auto Layout?**
Imagine que você está organizando uma festa de aniversário. Você tem três balões de tamanhos diferentes: um grande, um médio e um pequeno.
No Figma, você pode agrupar esses balões e aplicar o Auto Layout. É como se você dissesse:
> “Queridos balões, fiquem alinhados na mesma linha ou coluna, mas mantenham suas distâncias!”
O Figma cuida do resto, ajustando automaticamente os espaços entre os balões.
**Alinhamento de Itens: justify-content e align-items:**
Imagine que os balões são seus amigos na festa. O justify-content é como você decide a distância entre eles na linha (ou coluna). Você pode escolher que fiquem bem juntinhos ou com um espaço igual entre eles.
Já o align-items é como você diz aos balões:
> “Ei, pessoal, fiquem todos na mesma altura!” Você pode alinhar os balões pela base, pelo topo ou pelo meio.
O Auto Layout no Figma é como ter um assistente de festa que organiza tudo para você. Ele se comporta como o Flexbox do CSS, tornando seu design mais flexível e bonito. | hayatoinkz |
1,795,015 | 100 Salesforce Commerce Cloud Interview Questions and Answers | Salesforce Commerce Cloud is a highly scalable, cloud-based software-as-a-service (SaaS) ecommerce... | 0 | 2024-03-19T11:42:35 | https://www.sfapps.info/100-salesforce-commerce-cloud-interview-questions-and-answers/ | blog, interviewquestions | ---
title: 100 Salesforce Commerce Cloud Interview Questions and Answers
published: true
date: 2024-03-19 11:32:55 UTC
tags: Blog,InterviewQuestions
canonical_url: https://www.sfapps.info/100-salesforce-commerce-cloud-interview-questions-and-answers/
---
Salesforce Commerce Cloud is a highly scalable, cloud-based software-as-a-service (SaaS) ecommerce solution that enables businesses to create seamless shopping experiences across all digital channels — web, mobile, social, and more. It integrates commerce, customer service, and marketing services to empower businesses to understand their customers better, engage more effectively, and streamline the path to purchase with personalized customer experiences. Salesforce Commerce Cloud is uniquely positioned to leverage the power of the cloud, artificial intelligence, and community insights, making it a go-to platform for businesses looking to expand their online presence.
For a position focused on Salesforce Commerce Cloud, candidates are generally expected to meet several key requirements:
- **Technical Expertise:** Proficiency in the platform’s architecture, including knowledge of ISML, APIs (such as OCAPI and REST), and the ability to develop custom solutions using JavaScript. Understanding of the platform’s capabilities for both B2C and B2B commerce is essential.
- **Experience:** Depending on the level of the position (junior, middle, senior), experience requirements can range from foundational knowledge and basic hands-on experience to advanced skills in managing complex implementations, integrations, and optimizations.
- **Problem-Solving Skills:** The ability to troubleshoot issues, optimize performance, and develop innovative solutions to meet business needs and enhance the customer experience.
- **Project Management:** For senior positions, strong project management skills, including the ability to lead teams, manage timelines, and communicate effectively with stakeholders, are crucial.
- **Certifications:** While not always mandatory, Salesforce certifications (such as Salesforce Certified B2C Commerce Developer) are highly regarded and can be indicative of a candidate’s commitment and expertise in the platform.
- **Adaptability and Continuous Learning:** Given the fast-paced evolution of ecommerce and Salesforce Commerce Cloud’s regular updates, a willingness to continuously learn and adapt is essential.
Candidates who can demonstrate a blend of these technical skills, practical experience, and soft skills are well-positioned to contribute significantly to any organization utilizing Salesforce Commerce Cloud to drive their ecommerce strategy.
Read about [LWC interview questions Salesforce](https://www.sfapps.info/100-salesforce-lwc-interview-questions-and-answers/).
## Interview Questions and Answers for a Junior Salesforce Commerce Cloud Specialist
1. **What is Salesforce Commerce Cloud?**
Answer: Salesforce Commerce Cloud is a cloud-based software solution that provides an integrated platform for ecommerce, enabling businesses to create unified, engaging shopping experiences across multiple channels (web, mobile, social, and store). It offers a range of features including digital commerce, order management, predictive intelligence, and more, to empower businesses to connect with customers in a whole new way.
1. **Can you explain the difference between B2C Commerce and B2B Commerce in Salesforce Commerce Cloud?**
Answer: B2C (Business-to-Consumer) Commerce in Salesforce Commerce Cloud focuses on providing shopping experiences directly to the final consumer, featuring personalized shopping experiences, customer engagement tools, and targeted marketing. B2B (Business-to-Business) Commerce, on the other hand, caters to the needs of businesses buying from other businesses, featuring functionalities like bulk ordering, contract pricing, account hierarchies, and complex catalogs.
1. **What are cartridges in Salesforce Commerce Cloud?**
Answer: Cartridges in Salesforce Commerce Cloud are containers for code, configuration, and other resources used to implement site-specific behavior and integrations. They enable modular development and can be used to add custom features or integrate third-party services without altering the core platform code.
1. **How does Salesforce Commerce Cloud support mobile commerce?**
Answer: Salesforce Commerce Cloud supports mobile commerce through responsive design templates and mobile-first strategies, ensuring that ecommerce websites are optimized for viewing on various devices, including smartphones and tablets. It also offers features like mobile app development frameworks and APIs for creating a seamless mobile shopping experience.
1. **What is Einstein in Salesforce Commerce Cloud, and how does it enhance the shopping experience?**
Answer: Einstein in Salesforce Commerce Cloud is an AI-powered personalization engine that enhances the shopping experience by providing personalized product recommendations, predictive sort, and search optimizations based on the shopper’s behavior, trends, and preferences, thereby increasing conversion rates and customer satisfaction.
1. **How do you handle site performance optimization in Salesforce Commerce Cloud?**
Answer: Site performance optimization in Salesforce Commerce Cloud involves various strategies such as using a content delivery network (CDN) to reduce load times, optimizing image sizes and formats, leveraging browser caching, minimizing JavaScript and CSS files, and utilizing Salesforce Commerce Cloud’s built-in performance testing tools to identify and address bottlenecks.
1. **Explain the role of the storefront reference architecture (SFRA) in Salesforce Commerce Cloud.**
Answer: The Storefront Reference Architecture (SFRA) is a flexible, modern architecture provided by Salesforce Commerce Cloud that offers a set of best practices, code structures, and tools for developing ecommerce websites. It is designed to accelerate the development process, improve site performance, and enhance the overall user experience by providing a robust starting point that can be customized to meet specific business needs.
1. **Can you describe a complex integration you have implemented in Salesforce Commerce Cloud?**
Answer: A complex integration I have implemented in Salesforce Commerce Cloud involved integrating a third-party ERP (Enterprise Resource Planning) system for real-time inventory management and order processing. This required setting up secure API endpoints, mapping data fields between the ERP and Commerce Cloud, and implementing custom logic to handle order fulfillment, stock updates, and back-order scenarios, ensuring that the ecommerce site accurately reflected inventory levels and order statuses.
1. **What security measures does Salesforce Commerce Cloud provide?**
Answer: Salesforce Commerce Cloud provides multiple security measures including PCI compliance for secure payment processing, role-based access control to ensure users have appropriate permissions, encryption of sensitive data at rest and in transit, and regular security updates and patches to protect against vulnerabilities. Additionally, it offers tools for monitoring and detecting security threats.
1. **How does Salesforce Commerce Cloud support internationalization?**
Answer: Salesforce Commerce Cloud supports internationalization by providing features for multi-language and multi-currency support, allowing businesses to create localized shopping experiences for customers in different countries. It includes tools for managing localized content, pricing, taxes, shipping options, and more, enabling businesses to cater to a global audience.
1. **Explain the concept of OCAPI in Salesforce Commerce Cloud.**
Answer: OCAPI (Open Commerce API) is an API provided by Salesforce Commerce Cloud that allows developers to access the platform’s functionality and data programmatically. It supports RESTful principles and can be used for a wide range of purposes including managing products, customers, orders, and baskets, as well as integrating with external systems and building custom ecommerce applications.
1. **How do you ensure high availability and scalability in Salesforce Commerce Cloud?**
Answer: High availability and scalability in Salesforce Commerce Cloud are ensured through its cloud-based infrastructure, which allows for automatic scaling to handle increased traffic and sales volume without manual intervention. Additionally, the platform uses load balancing and has multiple data centers around the world to ensure continuous operation and minimize downtime.
1. **What are some common challenges when migrating to Salesforce Commerce Cloud from another platform?**
Answer: Common challenges when migrating to Salesforce Commerce Cloud include data migration, particularly for customer and order data, ensuring feature parity with the previous platform, integrating with existing back-office systems, and training the team on the new platform. A carefully planned migration strategy, including thorough testing and phased rollouts, can help address these challenges.
1. **How do you use Salesforce Commerce Cloud’s built-in analytics and reporting tools?**
Answer: Salesforce Commerce Cloud’s built-in analytics and reporting tools can be used to gain insights into customer behavior, sales performance, and site traffic. These tools offer customizable dashboards and reports that provide real-time data on key performance indicators (KPIs) such as conversion rates, average order value, and cart abandonment rates, enabling data-driven decision-making.
1. **What is a content delivery network (CDN), and how does Salesforce Commerce Cloud utilize it?**
Answer: A Content Delivery Network (CDN) is a network of servers distributed geographically that work together to provide fast delivery of Internet content. Salesforce Commerce Cloud utilizes a CDN to cache and deliver content such as images, stylesheets, and JavaScript files closer to the user’s location, significantly reducing load times and improving site performance.
1. **Can you explain the concept of “headless commerce” and its relevance to Salesforce Commerce Cloud?**
Answer: Headless commerce refers to the separation of the frontend presentation layer of a website from the backend ecommerce functionality, allowing developers to use any technology to build the frontend while managing ecommerce operations (like product management, orders, and customer data) through the backend services. Salesforce Commerce Cloud supports headless commerce through its APIs, enabling businesses to create custom, flexible, and innovative shopping experiences on various frontend platforms.
1. **How does Salesforce Commerce Cloud facilitate order management?**
Answer: Salesforce Commerce Cloud facilitates order management through its integrated order management system (OMS), which allows businesses to manage orders from all sales channels in one place. It supports features like order processing, inventory management, returns management, and customer service, providing a seamless process for fulfilling orders and managing post-purchase customer interactions.
1. **What strategies can be used in Salesforce Commerce Cloud for customer retention?**
Answer: Strategies for customer retention in Salesforce Commerce Cloud include personalized marketing campaigns using AI-powered insights from Einstein, loyalty programs, targeted promotions and discounts, and excellent customer service through integrated service and support tools. Additionally, providing a seamless, engaging shopping experience across all channels can significantly improve customer loyalty.
1. **How do you manage product catalogs in Salesforce Commerce Cloud?**
Answer: Product catalogs in Salesforce Commerce Cloud are managed through the platform’s catalog management tools, which allow for the creation and organization of products, categories, and variants. Features include bulk import and export capabilities, dynamic categorization, inventory management integration, and the ability to set up complex product relationships and attributes for a rich browsing experience.
1. **Describe how you would use A/B testing in Salesforce Commerce Cloud to improve conversion rates.**
Answer: A/B testing in Salesforce Commerce Cloud involves comparing two versions of a web page or element (like a call-to-action button) to see which one performs better in terms of conversion rates. By using the platform’s testing and optimization tools, you can create and manage tests, segment your audience, and analyze the results to identify the most effective design, content, or functionality, thereby improving the overall effectiveness of the ecommerce site.
### Insight:
When hiring a Junior Salesforce Commerce Cloud Specialist, it’s essential to focus not just on their current technical abilities but also on their potential for growth and willingness to learn. Many of Salesforce Commerce Cloud interview questions are designed to gauge understanding of fundamental concepts in Salesforce Commerce Cloud, such as ISML, cartridges, and site performance optimization. Look for candidates who show curiosity and an eagerness to dive deeper into the platform.
## Interview Questions and Answers for a Middle Salesforce Commerce Cloud Specialist
1. **What is the purpose of the Demandware Script API in Salesforce Commerce Cloud, and how do you use it?**
Answer: The Demandware Script API allows developers to customize the behavior of Salesforce Commerce Cloud beyond the standard functionality. It’s used for a variety of tasks, including manipulating data, customizing the user experience, and integrating third-party services. Developers can use it to create scripts that run on the server side, enhancing the ecommerce platform’s capabilities to meet specific business requirements.
1. **How do you approach building a multi-site architecture in Salesforce Commerce Cloud?**
Answer: Building a multi-site architecture in Salesforce Commerce Cloud involves planning for shared resources and unique content across sites. It requires setting up site-specific configurations for catalog, pricing, promotions, and languages while leveraging shared code bases and services where possible to maintain efficiency. Careful consideration is given to the management of global and site-specific data to ensure seamless operation across multiple storefronts.
1. **Describe the process of implementing a custom checkout flow in Salesforce Commerce Cloud.**
Answer: Implementing a custom checkout flow involves modifying the out-of-the-box checkout process to meet specific business requirements. This could include adding custom steps, integrating with external payment or shipping providers, or customizing the UI/UX. The process typically involves extending or overriding existing controllers, creating new templates, and ensuring all data handling is secure and PCI compliant. Testing and optimization are crucial to ensure a smooth checkout experience.
1. **How do you ensure data synchronization between Salesforce Commerce Cloud and external systems?**
Answer: Data synchronization between Salesforce Commerce Cloud and external systems is typically handled through APIs or middleware solutions. This involves setting up scheduled jobs or real-time integrations to sync data such as inventory levels, order status, customer information, and product details. Careful error handling and logging are important to manage discrepancies and ensure data integrity.
1. **What are some best practices for optimizing search and navigation in Salesforce Commerce Cloud?**
Answer: Optimizing search and navigation involves using features like Einstein AI for personalized search results, configuring search refinement rules, and leveraging SEO best practices. Implementing autocomplete suggestions, synonyms, and correct misspellings can enhance search usability. Navigation should be intuitive, with clear categories and filters to help users find products easily.
1. **Can you explain how Salesforce Commerce Cloud’s inventory management works and how it can be customized?**
Answer: Salesforce Commerce Cloud’s inventory management allows for real-time tracking of stock levels across various locations. Customization can involve integrating with external inventory systems, setting up allocation strategies, or creating custom logic for back-order handling. Developers can use APIs to manage inventory levels, and customization often involves scripting and scheduled jobs to synchronize data.
1. **Describe a challenging integration you have worked on with Salesforce Commerce Cloud and how you overcame the challenges.**
Answer: A challenging integration might involve connecting Salesforce Commerce Cloud with a legacy ERP system, requiring custom APIs and middleware to translate data formats and communication protocols. Overcoming such challenges involves thorough planning, robust error handling, and iterative testing. Clear documentation and open communication with stakeholders are crucial to navigate the complexities and ensure a successful integration.
1. **How do you handle localization and global rollouts in Salesforce Commerce Cloud?**
Answer: Handling localization involves setting up multi-language and multi-currency support, along with local tax and shipping configurations. For global rollouts, it’s important to consider the architecture for managing localized content and product catalogs, along with SEO strategies for different regions. Salesforce Commerce Cloud’s tools for site and catalog management, along with third-party integrations for localized content, are key to successful global expansion.
1. **What strategies do you employ for improving site performance and scalability in Salesforce Commerce Cloud?**
Answer: Improving site performance involves optimizing images, leveraging browser caching, minifying CSS and JavaScript, and using CDN for content delivery. Scalability is addressed by ensuring the platform is properly configured to handle peak loads, using load testing to identify bottlenecks, and taking advantage of Salesforce Commerce Cloud’s cloud infrastructure for automatic scaling.
1. **How do you use Salesforce Commerce Cloud’s content management system for marketing campaigns?**
Answer: The content management system (CMS) in Salesforce Commerce Cloud allows marketers to create, manage, and deploy marketing content without needing developer assistance. Using the CMS, marketing campaigns can be designed with rich content, targeted promotions, and personalized experiences based on customer segments. Scheduling tools enable timed releases of content to coincide with campaign launches.
1. **Explain the concept of custom objects in Salesforce Commerce Cloud and their use cases.**
Answer: Custom objects in Salesforce Commerce Cloud allow developers to store additional data not covered by the platform’s standard objects. Use cases include storing customer preferences, loyalty program data, or custom order attributes. They are flexible and can be integrated into the site’s logic and user interface, providing enhanced capabilities tailored to business needs.
1. **How do you implement secure payment processing in Salesforce Commerce Cloud?**
Answer: Secure payment processing involves integrating with PCI-compliant payment gateways, using encrypted transmissions, and ensuring sensitive payment data is never stored on the platform. Salesforce Commerce Cloud provides built-in integrations and APIs to facilitate secure payment transactions, and customization may involve adding additional layers of security or integrating with third-party fraud detection services.
1. **Discuss the approach to A/B testing and conversion rate optimization in Salesforce Commerce Cloud.**
Answer: A/B testing in Salesforce Commerce Cloud involves creating variations of pages or elements and directing traffic to these versions to measure performance. Tools within the platform allow for setting up tests, defining audience segments, and analyzing results. Conversion rate optimization is achieved by interpreting test results to make data-driven decisions on design, layout, and content that improve user engagement and sales.
1. **How do you manage user roles and permissions in Salesforce Commerce Cloud?**
Answer: User roles and permissions in Salesforce Commerce Cloud are managed through the platform’s administration module, allowing for granular control over access to different areas of the site and backend systems. Best practices involve defining roles based on job functions, applying the principle of least privilege, and regularly reviewing and updating permissions to ensure security and operational efficiency.
1. **Explain how you would set up a loyalty program in Salesforce Commerce Cloud.**
Answer: Setting up a loyalty program in Salesforce Commerce Cloud involves creating custom objects to track points or rewards, integrating these with customer profiles, and designing the frontend experience for enrollment and tracking. Customization might include APIs for points accumulation and redemption, and integration with marketing tools for targeted communications.
1. **How can Salesforce Commerce Cloud be integrated with CRM systems?**
Answer: Integration with CRM systems involves using APIs or middleware to sync customer data, order history, and customer service interactions between Salesforce Commerce Cloud and the CRM platform. This enables a unified view of the customer for sales, service, and marketing teams, enhancing customer engagement and personalization.
1. **What approach do you take for mobile optimization in Salesforce Commerce Cloud?**
Answer: Mobile optimization involves using responsive design principles, optimizing images and content for fast loading, and considering mobile-first features like touch-friendly navigation and mobile payments. Salesforce Commerce Cloud provides tools and templates to help create engaging mobile experiences that are consistent with the desktop site.
1. **How do you handle updates and deployments in Salesforce Commerce Cloud?**
Answer: Updates and deployments in Salesforce Commerce Cloud should follow a structured process involving code version control, sandbox testing, and staging environments before production deployment. The platform’s CI/CD tools support automated testing and deployment, minimizing downtime and ensuring a smooth rollout of new features or updates.
1. **Discuss the importance of SEO in Salesforce Commerce Cloud and how you optimize it.**
Answer: SEO is crucial for driving organic traffic to ecommerce sites. Optimization involves using SEO-friendly URLs, meta tags, and sitemaps, along with rich content and keyword optimization. Salesforce Commerce Cloud provides tools for managing these elements, and ongoing analysis and adjustments are necessary to maintain high search rankings.
1. **How do you use analytics and reporting in Salesforce Commerce Cloud to drive business decisions?**
Answer: Analytics and reporting in Salesforce Commerce Cloud provide insights into customer behavior, sales trends, and site performance. By analyzing data from these reports, businesses can make informed decisions on inventory management, marketing strategies, site optimizations, and customer engagement initiatives. Custom reports can be created to focus on specific KPIs relevant to the business goals.
### Insight:
In hiring a Middle Salesforce Commerce Cloud Specialist, it’s critical to assess not only their technical mastery over the platform, including areas like OCAPI, custom integrations, and advanced site optimization, but also their capacity for problem-solving and innovation. Our Salesforce Commerce Cloud interview questions and answers are designed to reveal a candidate’s depth of experience with real-world scenarios, such as handling internationalization or optimizing for mobile users. Look for individuals who demonstrate a strategic approach to challenges, showcasing their ability to leverage Salesforce Commerce Cloud’s capabilities to drive business outcomes. Their ability to navigate complex scenarios with innovative solutions will be invaluable in navigating the evolving demands of ecommerce projects.
## Interview Questions and Answers for a Senior Salesforce Commerce Cloud Specialist
1. **Describe your approach to leading a Salesforce Commerce Cloud migration or implementation project.**
Answer: Leading such a project requires a strategic approach, beginning with a comprehensive assessment of the current systems and defining clear goals for the migration or implementation. Key steps include stakeholder engagement, setting realistic timelines, resource allocation, risk management, and continuous communication throughout the project. Emphasis is placed on ensuring a smooth transition, minimizing downtime, and maintaining data integrity, with a strong focus on training and adoption strategies to maximize the platform’s benefits post-launch.
1. **How do you stay updated with Salesforce Commerce Cloud updates and recommend innovations to stakeholders?**
Answer: Staying updated involves regularly reviewing Salesforce release notes, participating in Salesforce community events and webinars, and engaging with other professionals in the field. To recommend innovations, I evaluate new features and technologies in the context of the business’s goals and pain points, preparing case studies to demonstrate potential benefits and ROI, thereby facilitating informed decision-making by stakeholders.
1. **Explain your strategy for managing and optimizing a global ecommerce platform with multiple storefronts in Salesforce Commerce Cloud.**
Answer: Managing a global platform involves establishing a scalable architecture that supports localized content, pricing, and currencies, while maintaining brand consistency. Strategies include leveraging shared components and services, automating content deployment across storefronts, and implementing local compliance and privacy regulations. Regular performance monitoring and optimization, along with a data-driven approach to localization, are crucial for success.
1. **Discuss a complex problem you solved in Salesforce Commerce Cloud. What was the challenge, and how did you address it?**
Answer: Describe a specific scenario, such as integrating a complex third-party system for real-time inventory management across multiple warehouses. The challenge might have involved data inconsistencies and performance issues. The solution could have involved developing a custom middleware layer to manage data synchronization efficiently, implementing robust error handling and logging, and optimizing API calls for performance. This would showcase problem-solving skills, technical expertise, and the ability to innovate within the platform’s constraints.
1. **How do you ensure that ecommerce solutions in Salesforce Commerce Cloud are scalable and can handle peak traffic periods?**
Answer: Ensuring scalability involves architecting solutions with a focus on efficient code, optimizing database interactions, and leveraging Salesforce Commerce Cloud’s cloud-based infrastructure for auto-scaling. Preparing for peak traffic also requires thorough load testing, implementing a CDN for global content delivery, and planning for capacity with strategic use of caching and queue management for high-demand periods.
1. **What is your approach to data security and compliance in Salesforce Commerce Cloud, especially with GDPR and other regulations?**
Answer: My approach includes conducting regular audits to ensure compliance with data protection regulations like GDPR, implementing strong data encryption, access controls, and secure data processing practices. Educating the team on compliance requirements, and working closely with legal and compliance teams to stay updated on regulations, is essential. Additionally, setting up processes for data subject requests and breach notifications is crucial for maintaining trust and legal compliance.
1. **How do you mentor junior developers and ensure quality in a team working on Salesforce Commerce Cloud?**
Answer: Mentoring involves regular one-on-one sessions, code reviews, and providing constructive feedback. I promote a culture of continuous learning, encouraging team members to pursue certifications and stay updated with the latest Salesforce developments. Ensuring quality requires establishing coding standards, implementing automated testing and CI/CD pipelines, and fostering an environment where quality is everyone’s responsibility.
1. **Describe your experience with integrating Salesforce Commerce Cloud with other Salesforce products and external systems.**
Answer: Discuss a specific integration project, such as connecting Salesforce Commerce Cloud with Salesforce Marketing Cloud for personalized marketing campaigns or integrating an external ERP system for streamlined operations. Highlight the strategic planning involved, challenges like data mapping and synchronization, and the benefits realized from a seamless integration, such as improved operational efficiency and enhanced customer experiences.
1. **How do you balance technical innovation with the practical needs of the business in your Salesforce Commerce Cloud solutions?**
Answer: Balancing innovation with practicality involves understanding the business’s strategic goals, evaluating the potential impact and ROI of new technologies, and prioritizing solutions that drive meaningful outcomes. It’s important to engage with stakeholders to align on objectives and manage expectations, ensuring that innovations are implemented in a phased approach to demonstrate value and gain buy-in.
1. **Can you discuss a time when you had to manage stakeholder expectations regarding a Salesforce Commerce Cloud project’s scope or timeline?**
Answer: Describe a scenario where project constraints required scope adjustment or timeline extension. Highlight your communication strategy, focusing on transparency, providing regular updates, and presenting options with clear trade-offs. Discuss how you worked collaboratively with stakeholders to prioritize features or phases to meet critical business needs while managing expectations realistically.
1. **How do you assess and manage risks in Salesforce Commerce Cloud projects?**
Answer: Risk management involves identifying potential risks early through stakeholder interviews and technical assessments, then prioritizing these risks based on impact and likelihood. Strategies include developing mitigation plans, such as contingency planning for critical path items, and establishing clear communication channels for reporting and addressing risks promptly. Regular review meetings ensure that risk management is an ongoing process throughout the project lifecycle.
1. **What methodologies do you prefer for project management and development in Salesforce Commerce Cloud projects, and why?**
Answer: Share your experience with methodologies like Agile or Scrum, emphasizing their benefits for Salesforce Commerce Cloud projects, such as flexibility, stakeholder engagement, and the ability to adapt to change. Discuss how these methodologies facilitate collaboration, iterative development, and regular feedback, leading to more successful project outcomes.
1. **Explain how you use analytics and data from Salesforce Commerce Cloud to drive business decisions and strategy.**
Answer: Utilizing Salesforce Commerce Cloud’s analytics involves analyzing data on customer behavior, sales trends, and site performance to identify opportunities for optimization. Discuss how you translate these insights into actionable strategies, such as targeted marketing campaigns, website enhancements, or product assortment adjustments, demonstrating the impact on KPIs and business growth.
1. **Describe your approach to troubleshooting and resolving performance issues in Salesforce Commerce Cloud.**
Answer: Troubleshooting involves systematic analysis using tools like Salesforce’s Commerce Cloud Business Manager and third-party monitoring solutions. Discuss a step-by-step approach to identifying bottlenecks, such as analyzing server logs, conducting performance profiling, and reviewing code for optimization opportunities. Emphasize the importance of proactive monitoring and continuous optimization to prevent issues.
1. **How do you evaluate the success of a Salesforce Commerce Cloud implementation?**
Answer: Success evaluation involves setting clear KPIs and objectives at the project’s outset, such as improved conversion rates, increased average order value, or enhanced customer satisfaction. Discuss how you use analytics to measure these metrics post-launch, conduct stakeholder interviews to gather qualitative feedback, and implement a continuous improvement process to refine and optimize the platform.
1. **Discuss your experience with internationalization in Salesforce Commerce Cloud. How do you manage multiple currencies, languages, and regional compliance?**
Answer: Managing internationalization involves leveraging Salesforce Commerce Cloud’s built-in features for multi-language and multi-currency support, along with customizations for local tax calculations and shipping methods. Discuss strategies for maintaining a core global template while enabling local teams to manage region-specific content and promotions, ensuring compliance with regional regulations and cultural sensitivities.
1. **How do you approach mobile optimization and omnichannel strategies in the Salesforce Commerce Cloud?**
Answer: Mobile optimization involves using responsive design principles and testing on a variety of devices to ensure an optimal user experience. For omnichannel strategies, discuss the integration of online and offline channels, leveraging Salesforce Commerce Cloud features to provide a seamless customer experience across web, mobile, social, and physical stores, emphasizing the importance of a consistent brand experience.
1. **What has been your biggest challenge in working with Salesforce Commerce Cloud, and how did you overcome it?**
Answer: Share a specific example that highlights a significant technical or strategic challenge, such as dealing with legacy system integrations or adapting to rapidly changing business requirements. Discuss your problem-solving approach, the resources and strategies utilized, and the lessons learned, showcasing resilience and adaptability.
1. **How do you incorporate user feedback and UX best practices into Salesforce Commerce Cloud solutions?**
Answer: Incorporating user feedback involves conducting user testing and gathering insights through tools like surveys and analytics. Discuss how you prioritize these insights to inform UX improvements and how you stay updated with UX best practices, emphasizing the importance of a user-centered design approach to drive engagement and conversion.
1. **How do you envision the future of ecommerce and Salesforce Commerce Cloud’s role in it?**
Answer: Discuss trends such as AI and machine learning, personalized shopping experiences, and the integration of physical and digital retail. Highlight Salesforce Commerce Cloud’s strengths in innovation, scalability, and integration capabilities, and how you plan to leverage these features to keep pace with ecommerce evolution, emphasizing a forward-thinking approach to driving business success.
### Insight:
For hiring a Senior Salesforce Commerce Cloud Specialist, the key is to identify individuals who not only have a profound technical understanding of the platform, including headless commerce implementations and custom payment integration, but also possess strong leadership qualities and strategic vision. Our questions aim to uncover the candidate’s experiences in leading projects, mentoring teams, and crafting solutions that align with overarching business goals.
## Scenario-Based Interview Questions for a Salesforce Commerce Cloud Specialist
1. **A client wants to increase their online store’s conversion rate. What steps would you take using Salesforce Commerce Cloud to achieve this?**
Answer: I would analyze the current user journey to identify drop-off points, use A/B testing to optimize page layouts and calls-to-action, implement personalized product recommendations with Einstein AI, and streamline the checkout process. Additionally, I would leverage SEO features to improve organic traffic and use targeted promotions to encourage conversions.
1. **You’re tasked with integrating a third-party inventory management system with Salesforce Commerce Cloud. Describe your approach.**
Answer: My approach would involve understanding the API capabilities of the third-party system, mapping data entities between the systems, and using Salesforce Commerce Cloud’s OCAPI or custom web services for the integration. I would ensure real-time or near-real-time synchronization of inventory levels and set up error handling for any integration failures.
1. **During a holiday sale, your client’s website experiences slower than usual load times. How would you address this in Salesforce Commerce Cloud?**
Answer: I would first identify the bottleneck by analyzing traffic patterns and system resource usage. Potential solutions include optimizing image sizes, implementing a CDN for static content delivery, reviewing and optimizing custom code, and scaling server resources if necessary. I’d also consider implementing or optimizing caching strategies.
1. **A business wants to expand internationally with localized sites for different countries. How would you set this up in Salesforce Commerce Cloud?**
Answer: I would leverage Salesforce Commerce Cloud’s multi-site architecture to create localized sites, configuring each for local languages, currencies, tax rates, and shipping options. I’d ensure a consistent global brand experience while allowing for local customization. Additionally, I’d implement SEO strategies for each locale to improve visibility.
1. **The marketing team wants to run a personalized email marketing campaign. How can Salesforce Commerce Cloud facilitate this?**
Answer: By integrating Salesforce Commerce Cloud with Salesforce Marketing Cloud, we can leverage customer data for personalized email campaigns. This includes segmenting customers based on their behavior, purchase history, and preferences, then designing targeted emails with personalized product recommendations and offers.
1. **A client reports that their product pages are not showing up correctly for some users. How would you troubleshoot this issue?**
Answer: I’d start by replicating the issue across different browsers and devices to identify if it’s a specific case or a broader issue. I’d review recent changes to the site, check for any JavaScript or CSS errors, and ensure that the product data is correctly configured and published. If necessary, I’d roll back any recent deployments that might have caused the issue.
1. **How would you handle a request to increase mobile user engagement on a Salesforce Commerce Cloud site?**
Answer: To increase mobile engagement, I’d focus on mobile UX optimization, including faster load times, easy navigation, and responsive design. Implementing features like push notifications, one-touch payment options, and integrating social media can also enhance mobile user engagement.
1. **Describe how you would use Salesforce Commerce Cloud’s capabilities to support a B2B client with complex pricing and discount structures.**
Answer: For a B2B client, I would use Salesforce Commerce Cloud’s B2B Commerce capabilities to configure customer-specific pricing and volume discount structures. This would involve setting up customer groups and leveraging the platform’s pricing and promotions engine to apply custom rules based on the customer segment, order volume, and product combinations.
1. **A client wants to reduce cart abandonment rates. What strategies would you implement using Salesforce Commerce Cloud?**
Answer: Strategies to reduce cart abandonment include optimizing the checkout process to be as seamless as possible, implementing abandoned cart emails, offering multiple payment options, and using exit-intent pop-ups with offers or reminders. Additionally, using analytics to understand where and why abandonment occurs can inform targeted improvements.
1. **Your client wants to improve SEO rankings for their Salesforce Commerce Cloud store. What steps would you take?**
Answer: I’d ensure all pages have SEO-friendly URLs, meta titles, and descriptions, use schema markup for product pages, and improve site speed. Creating quality content, such as a blog, can also improve SEO. Additionally, I’d audit the site for any SEO issues using Salesforce Commerce Cloud’s built-in tools and address them accordingly.
1. **A client is concerned about security breaches. How would you use Salesforce Commerce Cloud features to enhance their site’s security?**
Answer: I would enable two-factor authentication for admin access, use role-based access controls, ensure PCI compliance for payment processing, and implement IP whitelisting for backend access. Regularly reviewing and updating security settings in line with Salesforce Commerce Cloud’s best practices and recommendations would also be part of the strategy.
1. **How would you approach creating a loyalty program within Salesforce Commerce Cloud?**
Answer: I’d design the loyalty program structure including points, tiers, and rewards. Using Salesforce Commerce Cloud’s custom object capabilities, I’d track loyalty points and member levels. Integrating with the marketing and customer service modules would allow for personalized communications and rewards redemption.
1. **Describe a scenario where you had to use Salesforce Commerce Cloud’s API to meet a specific requirement.**
Answer: For a client needing real-time inventory updates from their ERP system, I used Salesforce Commerce Cloud’s OCAPI to develop an integration that synchronizes inventory levels. This involved setting up secure API endpoints, defining data mappings, and scheduling frequent synchronization to ensure inventory accuracy.
1. **A client’s ecommerce site is not meeting sales targets. How would you use data analytics in Salesforce Commerce Cloud to identify opportunities for improvement?**
Answer: I would analyze sales data to identify patterns, such as top-selling products or categories with high traffic but low conversion. Reviewing customer journey analytics to identify drop-off points and using A/B testing to optimize those areas could uncover opportunities. Additionally, analyzing competitor data and market trends can provide strategic insights.
1. **How would you manage a scenario where custom code is causing performance issues on a Salesforce Commerce Cloud site?**
Answer: I’d first identify the problematic code through performance profiling tools. Once identified, I’d refactor the code for efficiency, possibly breaking down complex processes into simpler, more manageable parts, and ensuring optimal use of Salesforce Commerce Cloud’s native features before resorting to custom solutions.
1. **Describe how you would optimize a Salesforce Commerce Cloud site for a high-traffic event like Black Friday.**
Answer: Preparations would include load testing to identify and address bottlenecks, implementing a CDN to manage high traffic, optimizing images and code for faster load times, and ensuring all promotions and pricing are pre-configured to avoid last-minute changes that could impact performance.
1. **How would you handle the integration of user-generated content, such as reviews, into a Salesforce Commerce Cloud site?**
Answer: I would evaluate and select a third-party review platform that integrates with Salesforce Commerce Cloud, ensuring it supports moderation and response capabilities. Then, I’d implement the integration, making sure that the user-generated content is displayed in a way that enhances the product pages without compromising site performance.
1. **A client wants to use Salesforce Commerce Cloud to manage subscriptions. Describe your approach.**
Answer: I’d utilize Salesforce Commerce Cloud’s capabilities to set up recurring orders and payments, configuring subscription products with options for frequency and customization. Integration with the client’s CRM would be key to manage subscriber relationships and provide personalized service.
1. **Your client is launching a new product line and wants to create a buzz. How would you leverage Salesforce Commerce Cloud for a successful launch?**
Answer: I’d use Salesforce Commerce Cloud to set up a landing page for the new product line, integrate with Salesforce Marketing Cloud for a teaser email campaign, and use social media integration for sharing and promotions. Additionally, setting up exclusive pre-launch access or promotions for existing customers can help create buzz.
1. **How would you address a situation where a Salesforce Commerce Cloud update conflicts with a custom feature?**
Answer: I would first analyze the update to understand the conflict, then evaluate the custom feature to see if it can be adapted to work with the new update. If adaptation isn’t feasible, I’d explore alternative solutions to achieve the same functionality, potentially leveraging newer features or services provided by the update. Communication with Salesforce support and thorough testing would be key throughout the process.
### Insight:
In exploring Scenario-Based Interview Questions for a Salesforce Commerce Cloud Specialist, it’s invaluable to discern candidates’ ability to apply theoretical knowledge to practical, real-world situations. Questions like handling a high-traffic event preparation or integrating user-generated content are tailored to reveal how candidates navigate common yet complex scenarios that arise in eCommerce environments. Look for responses that not only solve the problem at hand but also reflect a thoughtful consideration of the user experience, scalability, and long-term maintenance. Effective candidates should demonstrate a knack for innovative problem-solving and a strategic approach that anticipates future challenges while optimizing current operations.
Read about how to create [custom build sales funnel](https://www.sfapps.info/build-a-custom-sales-funnel-in-salesforce/).
## Technical/Coding Interview Questions for a Salesforce Commerce Cloud Specialist
1. **What is ISML and how is it used in Salesforce Commerce Cloud?**
Answer: ISML (Internet Store Markup Language) is a template language used in Salesforce Commerce Cloud for creating dynamically generated pages. It allows developers to embed logic directly within HTML pages, such as conditional statements, loops, and variables, to produce dynamic content based on user data or site context.
1. **How do you create a custom service framework in Salesforce Commerce Cloud?**
Answer: Creating a custom service framework involves defining a service in the services.xml file, specifying the service ID, class, and method. You then implement the service logic in a script file, adhering to the interface defined. The service can be invoked from anywhere in the application, providing a modular way to integrate external APIs or complex logic.
1. **Explain how to use OCAPI in Salesforce Commerce Cloud for product data retrieval.**
Answer: To use OCAPI for product data retrieval, you first need to configure the client permissions in the OCAPI settings to allow access to product data. Then, you can make a RESTful API call from your application or a third-party system to the appropriate OCAPI endpoint, such as /products/{product\_id}, passing any necessary parameters and authentication details. The API responds with the requested product data in JSON format.
1. **Describe the process of implementing a custom payment processor in Salesforce Commerce Cloud.**
Answer: Implementing a custom payment processor involves creating a script to handle the payment logic, which includes authorizing, capturing, and refunding payments. This script must implement the PaymentProcessor interface and use the appropriate API calls to communicate with the external payment gateway. The processor is configured in the Business Manager, associating it with the site’s payment methods.
1. **How do you manage site-specific and global preferences in Salesforce Commerce Cloud?**
Answer: Site-specific preferences are managed through the site’s administration module in the Business Manager, allowing you to configure settings that affect only a particular site. Global preferences are managed at the organization level and affect all sites within the instance. Developers can access and modify these preferences programmatically using the Site and SitePreferences API.
1. **What is a pipeline in Salesforce Commerce Cloud, and how do you create one?**
Answer: A pipeline in Salesforce Commerce Cloud is a visual script that defines the flow of processes for tasks such as handling a checkout or registering a user. Pipelines are created using the Pipeline Editor in the Business Manager, where you define a series of nodes and connectors that represent different actions or decisions, creating a flowchart-like structure.
1. **How do you handle localization in Salesforce Commerce Cloud?**
Answer: Localization in Salesforce Commerce Cloud involves using the platform’s built-in globalization features, including locale-specific content assets, currency handling, and date formatting. Developers can use resource bundles for translating static text and can configure site preferences for locale-specific settings. Dynamic content localization can be achieved through Content Slots and targeting rules.
1. **Describe how to implement a headless commerce architecture with Salesforce Commerce Cloud.**
Answer: Implementing a headless commerce architecture with Salesforce Commerce Cloud involves using the platform’s APIs, primarily OCAPI and Storefront Reference Architecture (SFRA) APIs, to separate the frontend presentation layer from the backend ecommerce logic. This allows developers to use any frontend technology while interacting with Salesforce Commerce Cloud for backend operations such as product management, cart operations, and order processing.
1. **How do you optimize performance for a Salesforce Commerce Cloud site?**
Answer: Performance optimization strategies include using a Content Delivery Network (CDN) to cache and serve static content closer to the user, optimizing image sizes and formats, minifying and combining JavaScript and CSS files, lazy loading non-critical resources, and reviewing custom code for efficiency. Additionally, utilizing Salesforce Commerce Cloud’s caching capabilities for templates and data can significantly improve site performance.
1. **Explain the use of hooks in Salesforce Commerce Cloud.**
Answer: Hooks in Salesforce Commerce Cloud allow developers to extend or modify the platform’s core functionality without altering the base code. Hooks can be used to execute custom code before or after specific system operations, such as placing an order or updating a product. They are defined in the hooks.json file, specifying the hook ID and the script to be executed.
1. **How do you manage session data in Salesforce Commerce Cloud?**
Answer: Session data in Salesforce Commerce Cloud is managed using the session object, which provides methods to store and retrieve data specific to a user’s session. This can include user preferences, shopping cart contents, or authentication states. Data stored in the session is temporary and persists only for the duration of the user’s session.
1. **Describe the process of setting up A/B testing in Salesforce Commerce Cloud.**
Answer: A/B testing in Salesforce Commerce Cloud is set up using the Business Manager, where you can create A/B tests by defining test criteria, segments, and success metrics. You then assign content assets or configurations to different test groups and monitor the performance of each variant against the defined metrics. The platform provides tools for analyzing the results and determining the most effective variant.
1. **How do you ensure PCI compliance when developing payment solutions on Salesforce Commerce Cloud?**
Answer: Ensuring PCI compliance involves using Salesforce Commerce Cloud’s secure payment modules and APIs, which abstract the handling of sensitive payment information. Developers should avoid storing or processing credit card data directly and instead use tokenization and secure payment gateways. Following the platform’s best practices and regularly auditing your payment processes and code also contribute to maintaining PCI compliance.
1. **Explain how to use the job framework in Salesforce Commerce Cloud for data import and export.**
Answer: The job framework in Salesforce Commerce Cloud allows you to automate data import and export processes through scheduled jobs. Developers can create job scripts that define the data to be imported or exported and the format. These jobs are configured and scheduled in the Business Manager, specifying the job script, file locations, and execution schedule.
1. **How do you integrate Salesforce Commerce Cloud with a CRM system?**
Answer: Integrating Salesforce Commerce Cloud with a CRM system typically involves using web services or APIs provided by both platforms. The integration can be facilitated through middleware or directly by developing custom scripts in Salesforce Commerce Cloud that call the CRM’s API to sync customer data, orders, and other relevant information. Proper authentication and error handling are crucial to ensure a seamless integration.
1. **What strategies do you use for error handling in Salesforce Commerce Cloud scripts?**
Answer: Error handling strategies include using try-catch blocks to gracefully handle exceptions, logging errors to the system log or custom log files for debugging, and providing user-friendly error messages to the front end. It’s also important to validate input data and implement fallback mechanisms for critical operations to enhance the robustness of your scripts.
1. **How do you use custom attributes in Salesforce Commerce Cloud?**
Answer: Custom attributes in Salesforce Commerce Cloud can be defined for products, categories, or customers to store additional information that is not covered by the platform’s standard attributes. These attributes are created in the Business Manager and can be accessed programmatically in ISML templates or scripts, allowing for dynamic content rendering based on custom data.
1. **Describe the process for creating and managing promotions in Salesforce Commerce Cloud.**
Answer: Promotions in Salesforce Commerce Cloud are managed through the Business Manager, where you can define promotion rules, eligibility criteria, and discounts. The process involves specifying the promotion type (e.g., order discount, product discount), configuring the qualifying conditions, and setting up the promotional discount. Promotions can be targeted to specific customer segments and scheduled for specific time frames.
1. **How do you implement site search optimization in Salesforce Commerce Cloud?**
Answer: Site search optimization involves configuring search dictionaries, setting up search refinements, and using ranking rules to influence search results. Developers can also implement custom search logic using the platform’s APIs to enhance search functionality, such as autocomplete suggestions or personalized search results based on user behavior.
1. **Explain how to create a custom controller in Salesforce Commerce Cloud.**
Answer: Creating a custom controller involves defining a new JavaScript file in the controllers directory of your cartridge. The controller must export functions that correspond to the actions it should perform, such as rendering a page or processing form submissions. Routes are defined in the routes.json file to map URLs to the controller’s actions, enabling the application to handle requests through your custom logic.
### Insight:
Questions that probe into creating custom controllers, managing site search optimization, or setting up A/B testing aim to uncover not just the technical skills but also the candidate’s ability to think critically and creatively in solving ecommerce challenges. An adept candidate should demonstrate a deep understanding of Salesforce Commerce Cloud’s architecture and show how they’ve used its capabilities, like API integration or performance optimization, to enhance site functionality and improve user experiences.
## Conclusion
The questions and insights provided here serve as a foundational sample for evaluating candidates across various levels of expertise in Salesforce Commerce Cloud roles. While these questions cover a wide range of technical, scenario-based, and strategic aspects of working with Salesforce Commerce Cloud, they represent only a starting point. Each organization’s specific needs, the complexity of its ecommerce ecosystem, and the evolving landscape of digital commerce may require additional tailored inquiries and considerations. Nevertheless, these samples offer a solid basis for identifying candidates with the necessary skills, problem-solving abilities, and innovative thinking required to excel in Salesforce Commerce Cloud positions, setting the stage for further exploration of each candidate’s unique strengths and potential contributions to your team.
The post [100 Salesforce Commerce Cloud Interview Questions and Answers](https://www.sfapps.info/100-salesforce-commerce-cloud-interview-questions-and-answers/) first appeared on [Salesforce Apps](https://www.sfapps.info). | doriansabitov |
1,797,617 | Boltrack Engineers - rental suspended platform | BOLTRACK. is located near the picturesque Ahmedabad, Gujarat State of India. The company is an... | 0 | 2024-03-21T18:38:29 | https://dev.to/karendo/boltrack-engineers-rental-suspended-platform-1e8 | other | BOLTRACK. is located near the picturesque Ahmedabad, Gujarat State of India. The company is an international and professional new high-tech company and specializes in developing, manufacturing, and marketing suspended platforms and TMT Bender & Cutter. With a strong design team,advanced production, testing equipment, and sound after-sales system, it is dedicated to providing solutions for its customers through the most advanced technological means and has been one of the famous solution providers and equipment suppliers of work at height in all over india.
YOU DREAM IT, WE BUILD IT
We are in the field of customization we the one who can design the cradle as per your site need. we have “CURVE” SHAPE CRADLE,”W” SHAPE CRADLE, CRADLE FOR CHIMNEY WORK,”SQUARE” SHAPE CRADLE & “L” SHAPE CRADLE loded with modern safety accessories.. The company’s products are advanced in design, safe, reliable, and easy to use.They are low cost and require simple maintenance.
[Suspended Platform Rental](https://boltrack.in/) - [Suspended Platform Lift](https://boltrack.in/)
suspended cradle
glass lifting equipment | karendo |
1,798,231 | Full guide LLP registration in Bangalore | Navigate the process of Limited Liability Partnership effortlessly with expert assistance from... | 0 | 2024-03-22T09:40:00 | https://dev.to/vivek99/full-guide-llp-registration-in-bangalore-2kgp | llp, registration, bangalore | Navigate the process of Limited Liability Partnership
 effortlessly with expert assistance from Actax India. From quick registration to perfect documentation, our services ensure a hassle-free experience, starting at just ₹4,999/-. Learn more and initiate your registration process today.
Key Points:
**Benefits of LLP Registration:
**
LLP offers a separate legal entity status akin to companies.Limited liability for partners, reducing individual risk.Cost-effective, with minimal compliance requirements and no minimum capital contribution.Simplified funding and enhanced credibility for attracting customers and investors.
Registration Process Overview:
Initial steps include acquiring Digital Signature Certificates (DSC) and Director Identification Numbers (DIN).Name approval and application for registration through the FiLLiP form.Drafting and filing of LLP agreement outlining partner duties, obligations, and rights.Obtaining Certificate of Incorporation (CIN) and applying for PAN & TAN.
**[LLP Registration Requirements in Bangalore](https://actaxindia.com/llp-registration-bangalore/):**
Essential documents include ID proofs, residence proofs, DSC, DIN, and proof of registered office address.Application processes for DSC, DIN, name approval, LLP registration, and LLP agreement filing outlined.Cost of LLP Registration: Estimated registration fee in Bangalore is approximately ₹7,499, covering government and professional fees.Costs may vary based on jurisdiction, business complexity, and service requirements.
****Why Choose Actax India:
**
**Expert consultation, quick registration, and meticulous documentation.Over 15 years of domain expertise ensuring compliance with MCA regulations.Reliable and efficient services tailored to your business needs.
****Conclusion
**
**Embark on your LLP registration journey in Bangalore with confidence, guided by Actax India’s seasoned professionals. Our streamlined process, expert guidance, and commitment to excellence ensure a smooth and efficient registration experience. Start your LLP formation today with Actax India.
Learn more about [LLP Registration in Bangalore ](https://actaxindia.com/llp-registration-bangalore/)and initiate your registration process here.
| vivek99 |
1,798,579 | Short definition of FaaS | FaaS is described as a cloud computing service that allows you to execute code in response to events.... | 0 | 2024-03-22T14:57:32 | https://dev.to/mariustechie/short-definition-of-faas-2lk6 | azure, serverless, faas | **FaaS** is described as a cloud computing service that allows you to execute code in response to events.
**FaaS** is using a **serverless framework**. Let's explain that really quickly. A server is a computer or a device that provides programmable service to another computer program. A few server types: database, app or web. So, in the most basic definition possible, **serverless computing** is a cloud computing execution model where the cloud provider **dynamically manages the allocation of machine resources**, abstracting away the need for developers to manage servers.
Let's continue with the definition of **Faas** and rembember that a **function** in programming is a reusable block of code that performs a specific task or computation. It takes data, process it and responds. This happens the same way using **FaaS**, **developers create code that responds to specific events or triggers**, and **the cloud provider dynamically allocates resources** to execute that code in response to those events. Devs will only need to manage the application and focus only on code, everything else (data, servers, networking, etc.) will be handled by the cloud provider. Developers don't have to deal with managing servers directly nor any other resource.
In Azure we have **Azure Functions** while Amazon has **AWS Lambda** and Google has **Google Cloud Functions**.
Photo by <a href="https://unsplash.com/@growtika?utm_content=creditCopyText&utm_medium=referral&utm_source=unsplash">Growtika</a> on <a href="https://unsplash.com/photos/a-group-of-blue-and-white-drones-UyvnmroVRW4?utm_content=creditCopyText&utm_medium=referral&utm_source=unsplash">Unsplash</a>
I would love hearing from our tech-savvy community! Have insights, tips, or burning questions? Don't keep them to yourself! Drop your thoughts in the comments below. Let's spark a conversation and learn from each other's experiences in the dynamic world of Azure migration | mariustechie |
1,798,837 | Typescript 🆚 NodeJS Runtime: Problemas e soluções na importação de módulos | Como um desenvolvedor gosto de experimentar diversas linguagens. Já faz um bom tempo desde a última... | 0 | 2024-03-22T18:10:47 | https://dev.to/chlima88/typescript-nodejs-runtime-problemas-e-solucoes-na-importacao-de-modulos-3h14 | typescript, node, javascript, beginners |
Como um desenvolvedor gosto de experimentar diversas linguagens. Já faz um bom tempo desde a última vez que fiz algum com Typescript, porém hoje estive trabalhando em um projeto e tive uma enorme dificuldade para conseguir gerar a build em javascript
O interessante é que o código funciona corretamente no *ts-node*, porém ao executar o *tsc* e utilizar o nodejs surge o erro `MODULE_NOT_FOUND`
Nessa hora entendi que era um problema com os imports pois não é a primeira vez que me deparo com esse problema. No entanto nada aparentava erro no meu VSCode…
...nem no *tsconfig.js*
Quando fui dar uma olhada no script de dev e start, lembrei do *tsconfig-paths* o qual eu havia configurado no início do projeto para resolver os caminhos relativos dis *imports.* Com isso, dei uma pesquisada e descobri que ele pode ser utilizado não apenas no *ts-node* e *ts-node-dev*, mas também no próprio *node*.
Assim, resolvi testar uma nova build, mas agora passando os parametros abaixo para o node:
*ts-node/register/transpile-only -* transpila arquivos TypeScript em tempo de execução usando o `ts-node`, sem realizar a verificação de tipo.
*tsconfig-paths/register -* registra os caminhos definidos no `tsconfig.json` usando o `tsconfig-paths`. Isso permite que o Node.js resolva os módulos usando os caminhos definidos no `tsconfig.json`, dispensando a necessidade dos caminhos relativos.
O comando fica assim:
```plaintext
node -r ts-node/register/transpile-only -r tsconfig-paths/register ./dist/main.js
```
E não é que deu certo?
### Nem tudo são flores…
Apesar de ser uma boa solução, pode não ser uma boa opção para ambientes de produção visto que há um aumento no consumo de memória devido aos modulos extras carregados pelo node. No entanto, não conseguir descobrir se o consumo escala de acordo com o tamanho da aplicação.
Node com caminhos relativos
Node com módulos adicionais
Depois de pesquisar muitas alternativas, descobri o pacote [*tsc-alias*](https://www.npmjs.com/package/tsc-alias) que simplifica toda essa questão de resolução de módulos no typescript vs runtime.
Após adicioná-lo ao projeto, basta buildar o projeto normalmente com o *tsc* e na sequencia executar o comando *tsc-alias*. Você também pode adicionar o comando ao script de build no package.json.
Olha como ficou a utilização de memória.
Espero que tenham gostado ❤
Valeu pessoal!
{% github https://github.com/justkey007/tsc-alias %} | chlima88 |
1,798,968 | Dubai Best lipedema Clinic | Welcome to LipoClinic.ae, Dubai's leading authority on comprehensive lipedema care. With a steadfast... | 0 | 2024-03-22T20:39:44 | https://dev.to/lohnmartin0032/dubai-best-lipedema-clinic-271c | best, lipedema, clinic, beginners | Welcome to LipoClinic.ae, Dubai's leading authority on comprehensive lipedema care. With a steadfast commitment to excellence and a focus on personalized treatment, we are dedicated to empowering individuals affected by lipedema to live their lives to the fullest.
As the [Dubai Best lipedema Clinic](url), we understand the challenges and complexities that accompany this condition. Our multidisciplinary team of specialists combines expertise with empathy to provide compassionate care tailored to the unique needs of each patient.
At LipoClinic Dubai, we offer a comprehensive range of services aimed at effectively managing and treating lipedema. From accurate diagnosis to customized treatment plans, we prioritize the well-being and comfort of our patients every step of the way.
Our clinic is equipped with state-of-the-art facilities and cutting-edge technology to ensure the highest standards of care. Whether you require conservative management strategies, minimally invasive procedures, or surgical interventions, we have the expertise and resources to address your needs with precision and skill.
What truly sets Lipo Clinic Dubai apart is our unwavering dedication to patient satisfaction and empowerment. We believe in fostering a supportive and inclusive environment where individuals feel heard, understood, and supported throughout their journey to better health.
At Lipo Clinic.ae Dubai, we are more than just a clinic—we are a partner in your path to wellness. If you're seeking the best lipedema care in Dubai, look no further than [LipoClinic.ae](url). Contact us today to schedule your consultation and take the first step towards reclaiming your life. | lohnmartin0032 |
1,798,996 | Analysis of The Beginner's Guide to Web Development | INTRODUCTION Hello everyone. I recently became interested in technical writing and... | 0 | 2024-03-22T22:54:49 | https://dev.to/mithandros/analysis-of-the-beginners-guide-to-web-development-37kf | webdev | ## **INTRODUCTION**
Hello everyone.
I recently became interested in technical writing and decided to join the **Technical Writing Mentorship Program**. It has been an incredible experience so far. An assignment was to analyze a sample article, and I will analyze **[The Beginner's Guide to Web Development](https://blog.hubspot.com/website/website-development)** by _Allie Decker_, focusing on audience analysis and applying technical writing principles.
## **AUDIENCE ANALYSIS**
Audience analysis is researching and finding the key points that best convey the writer's information to the target audience. It is vital for effective communication and engagement. I will review the sample article to ensure audience analysis was done correctly.
This article was written for tech enthusiasts and beginners looking to break into web development, giving them detailed knowledge of what it entails and the various aspects. The article covered many topics, but it was a long read. While that was expected given the subject matter, some aspects, such as cybersecurity and other computer programming topics, needed to be revised. Breaking it into a series would have been more effective as there was a lot of information that would need to be clarified for a beginner.
## **TECHNICAL WRITING PRINCIPLES**
I was able to weigh this article against the technical writing principles using the criteria below:
- **Clarity and Concision**: The article was easy to understand but needed to be more concise. It was lengthy and had a lot of information, which was too much.
- **Accuracy**: The information was accurate based on my knowledge of web development as a Frontend Engineer.
- **Attention to Detail**: The attention to detail is commendable, with the author ensuring every area of web development is covered.
- **Organization**: The article was organized but veered off course with information not restricted to the subject matter.
- **User-centered approach**: The article was tailored to the needs of a beginner, covering the basics of web development. There is a risk of information overload, but the author had the target audience in mind.
- **Visual Aids**: The article included visuals that helped explain the author's points. Examples of visual aids included were code snippets and diagrams.
- **Technical Jargon**: The author used the appropriate terms and explained them so the reader could understand.
**CONCLUSION**
This article is an excellent read for those trying to venture into web development with additional information on other aspects of programming. It is meant to be read steadily and not rushed through to avoid missing information or getting overwhelmed.
**RESOURCES**
- [Technical Writing Mentorship Program](https://technicalwritingmp.com/)
- [The Beginner's Guide to Web Development](https://blog.hubspot.com/website/website-development)
| mithandros |
1,798,997 | Automatically Change IP Address تغير اي بي بشكل تلقائي كالي لينكس | السلام عليكم متابعين قناة ومدونة Shadow Hacker في هذا المقال سوف استعرض معكم أـداة رائعه تسمى... | 0 | 2024-03-22T22:36:04 | https://dev.to/shadowhackrs/automatically-change-ip-address-tgyr-y-by-bshkl-tlqyy-kly-lynks-5ag | hack, hacker, kalilinux, termux |
السلام عليكم متابعين قناة ومدونة **[Shadow Hacker](https://www.shadowhackr.com/2024/03/Automatically-Change-IP-Address.html)** في هذا المقال سوف استعرض معكم أـداة رائعه تسمى Automatically Change IP Address وظيفتها بانها تقوم بتغيير IP بشكل مستمر وهذا يفيد في عملية تخفي عندج التصفح في مواقع لا تريد تتبعد او الحصول على أمكانية تسجيل في مواقع تعطيك عدد معين من تسجيل فيها ولها استخدامات أخرى **[مفيدة جداً](https://www.xcashadvances.com/)**.
Automatically Change IP Address تغير اي بي بشكل تلقائي كالي لينكس
Automatically Change IP Address
Automatically Change IP Address تغير اي بي بشكل تلقائي كالي **[لينكس](https://www.arbgit.com/
)**
تعتبر الشبكات أساسية للتواصل وتبادل المعلومات بين الأجهزة. واحدة من أهم العناصر في هذه الشبكات هي عناوين IP، التي تحدد هوية الأجهزة وتمكنها من التواصل عبر الشبكة. في بيئات Linux، يمكن تغيير العناوين IP يدوياً، لكن هذا قد يكون مهمة متعبة ومنغصة بالنسبة للمشرفين على الشبكات، خاصةً في البيئات التي تتطلب تغييرات متكررة.
هنا تأتي الحاجة إلى الحلول الذكية والتلقائية لإدارة عناوين IP في أنظمة **[Linux](https://www.aearb.com/
)**. تطوير سكريبتات تلقائية لتغيير العناوين IP يمكن أن يوفر الكثير من الوقت والجهد للمشرفين على الشبكات، ويقلل من فرص الأخطاء البشرية.
فوائد التغيير التلقائي لعنوان IP:
توفير الوقت والجهد: بدلاً من تغيير العناوين IP يدوياً، يمكن للسكريبتات التلقائية القيام بذلك بشكل تلقائي وبسرعة، مما يوفر الوقت والجهد للمشرفين.
الدقة والموثوقية: يمكن تحديد السكريبتات لتنفيذ العملية بشكل دقيق وموثوق، مما يقلل من فرص الأخطاء البشرية التي قد تحدث عند التدخل اليدوي.
تنفيذ دوري ومنتظم: يمكن جدولة السكريبتات لتشغيلها بانتظام، مما يسمح بتغيير العناوين IP بشكل دوري وفقًا للمتطلبات الشبكية.
مرونة التكوين: يمكن تعديل السكريبتات بسهولة لتناسب متطلبات الشبكة المتغيرة، مما يوفر مرونة أكبر في إدارة الشبكات.
كيفية تنفيذ تغيير تلقائي لعنوان IP في Linux:
إنشاء سكريبت: يتم إنشاء سكريبت يحتوي على الأوامر اللازمة لتغيير العنوان IP بشكل تلقائي. يتم تضمين أوامر مثل ifconfig أو ip لإجراء التغييرات.
ضبط جدول Cron: يتم تكوين جدول Cron لتشغيل السكريبت بانتظام وفقًا للجدول الزمني المحدد، سواء كان ذلك بشكل دوري كل ساعة أو يومياً.
اختبار وتعديل: يتم اختبار السكريبتات وضبطها وفقًا لاحتياجات الشبكة الخاصة، مع التأكد من استجابتها بشكل صحيح وفعالية في تغيير العناوين IP.
توثيق وصيانة: يتم وثيقة العملية والتعليمات الخاصة بتنفيذ التغييرات، بالإضافة إلى جدولة الصيانة الدورية للسكريبتات والجداول الزمنية.
تحميل أداة Automatically Change IP Address
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| shadowhackrs |
1,799,030 | The journey | They journey to programming is like investing all your money on something that's new to you. But you... | 0 | 2024-03-23T00:42:10 | https://dev.to/abekah/the-journey-7ca |
They journey to programming is like investing all your money on something that's new to you. But you still believe in yourself that one day you will make a profit. | abekah | |
1,799,093 | Exploring JavaScript Obfuscation in Web Development and Cybersecurity | In the ever-evolving landscape of web development and cybersecurity, JavaScript obfuscation emerges... | 0 | 2024-03-23T01:54:40 | https://dev.to/khid/exploring-javascript-obfuscation-in-web-development-and-cybersecurity-11af | javascript, webdev, programming, cybersecurity | In the ever-evolving landscape of web development and cybersecurity, JavaScript obfuscation emerges as a powerful tool, cloaking code in layers of complexity and intrigue. But what exactly does this entail?
JavaScript obfuscation is a sophisticated technique employed by developers and security professionals to obscure the true nature of JavaScript code. It involves deliberately transforming the source code into a cryptic maze of syntax and structure, making it challenging for unauthorized parties to decipher its true intent.
At its core, JavaScript obfuscation encompasses a variety of strategies, each aimed at confounding attempts to understand the code. Variable renaming is a fundamental tactic, where identifiers are replaced with obscure and meaningless names, making it difficult to follow the logic of the program. Additionally, string encryption is often employed to obfuscate sensitive data within the code, adding another layer of complexity.
Beyond simple lexical transformations, JavaScript obfuscation may involve more advanced techniques such as code splitting and concatenation. These methods scatter fragments of code across multiple files and combine them in unconventional ways, making it challenging for analysts to reconstruct the original program flow. Control flow obfuscation further complicates matters by introducing convoluted logic and redundant constructs, effectively obfuscating the program's control flow.
However, while JavaScript obfuscation serves as a barrier to reverse engineering and unauthorized access, it also presents a challenge to legitimate users and developers. Deciphering obfuscated code requires a keen understanding of JavaScript and the ability to navigate through layers of complexity. Furthermore, obfuscated code may introduce performance overhead and compatibility issues, making it less than ideal for certain applications.
Sure, let's consider a real-world example of JavaScript obfuscation commonly used to protect JavaScript-based applications, such as web applications or scripts:
Imagine you have a web application that includes sensitive business logic and proprietary algorithms written in JavaScript. To protect this intellectual property from being easily reverse-engineered by competitors or attackers, you decide to obfuscate the JavaScript code before deploying it.
Here's a simplified example of how you might obfuscate the JavaScript code using a tool like UglifyJS, one of the popular JavaScript minification and obfuscation tools:
Original JavaScript code:
```javascript
function calculateTotal(price, quantity) {
return price * quantity;
}
let totalPrice = calculateTotal(10, 5);
console.log("Total price:", totalPrice);
```
After obfuscation using UglifyJS:
```javascript
function n(e, t) {
return e * t;
}
let r = n(10, 5);
console.log("Total price:", r);
```
In this example, the original function `calculateTotal` and its parameters `price` and `quantity` have been obfuscated to `n`, `e`, and `t`, respectively. Additionally, variable names have been shortened to single characters, and whitespace and comments have been removed, making the code harder to understand and reverse-engineer.
Real-world applications of JavaScript obfuscation can be found in various scenarios, including:
1. **Protecting Intellectual Property**: Companies may obfuscate JavaScript code to protect their proprietary algorithms, business logic, and trade secrets from being easily copied or reverse-engineered by competitors.
2. **Securing Web Applications**: Web developers may obfuscate client-side JavaScript code to prevent attackers from easily analyzing and exploiting vulnerabilities in the code, such as injection attacks or unauthorized access to sensitive data.
3. **Mitigating Piracy**: Developers of commercial JavaScript-based software or libraries may obfuscate their code to deter unauthorized redistribution or piracy of their products.
4. **Enhancing Performance**: In some cases, JavaScript obfuscation can also lead to performance improvements by reducing the size of the code and optimizing its execution speed.
5. **Complying with Regulations**: In industries with strict regulatory requirements, such as finance or healthcare, obfuscating JavaScript code can be part of a broader security strategy to ensure compliance with data protection and privacy regulations.
It's important to note that while JavaScript obfuscation can make it harder for attackers to understand and modify the code, it is not a substitute for proper security practices such as input validation, authentication, and encryption. Additionally, obfuscated code can still be reverse-engineered with enough time and effort, so it's essential to use obfuscation as one layer of defense in a comprehensive security strategy.
In conclusion, JavaScript obfuscation is a powerful technique for protecting sensitive code and intellectual property. However, it should be used judiciously and in conjunction with other security measures to ensure the integrity and reliability of web applications. As technology continues to evolve, so too must our approaches to cybersecurity and code protection.
References:
- Flaviu Cristian, Daniel Yi Xu, Srinivasan Raghunathan, and Jayashree Ramesh, "Obfuscation and software protection for modern web applications", Proceedings of the 2010 ACM Workshop on Privacy in the Electronic Society.
- Colin Eberhardt, "Understanding JavaScript obfuscation techniques", https://blog.scottlogic.com/2011/01/05/javascript-string-encryption-and-obfuscation.html.
- Adam Baldwin, "Introduction to JavaScript obfuscation", https://hackernoon.com/introduction-to-javascript-obfuscation-bf9b8d4e70fb. | khid |
1,799,174 | The Ultimate Guide to apparel manufacturer in Bangladesh | In recent years, Bangladesh has emerged as a powerhouse in the global apparel manufacturing industry.... | 0 | 2024-03-23T05:52:36 | https://dev.to/ashraful1995/the-ultimate-guide-to-apparel-manufacturer-in-bangladesh-18i4 | garments, poshgarments | In recent years, Bangladesh has emerged as a powerhouse in the global apparel manufacturing industry. With its skilled workforce, competitive labor costs, and robust infrastructure, Bangladesh has become a preferred destination for apparel production for brands worldwide. In this comprehensive guide, [apparel manufacturer in Bangladesh](https://poshgarments.com/) we delve into the intricacies of apparel manufacturing in Bangladesh, providing insights into the process, advantages, challenges, and why it's a top choice for businesses across the globe.
Understanding the Dynamics of Apparel Manufacturing in Bangladesh
Growth and Expansion:
Bangladesh's apparel industry has witnessed exponential growth over the past few decades. From humble beginnings, it has evolved into a multi-billion-dollar sector, apparel manufacturer in Bangladesh contributing significantly to the country's economy. The industry's success can be attributed to factors such as government support, favorable trade policies, and the entrepreneurial spirit of its people.
Skilled Workforce:
One of the key strengths of Bangladesh's apparel manufacturing sector is its skilled workforce. The country boasts a large pool of trained workers with expertise in various aspects of garment production, including cutting, stitching, apparel manufacturer in Bangladesh and quality control. This abundance of skilled labor ensures efficiency and precision in the manufacturing process, making Bangladesh a preferred choice for businesses seeking high-quality apparel at competitive prices.
Competitive Costs:
Cost-effectiveness is another significant advantage of apparel manufacturing in Bangladesh. The country offers competitive labor costs compared to many other manufacturing hubs, allowing businesses to achieve substantial savings without compromising on quality. Moreover, [garments manufacturer in Bangladesh](https://poshgarments.com/) the presence of vertical integration within the industry, with textile mills and garment factories often located nearby, further reduces production costs and lead times.
The Apparel Manufacturing Process: From Design to Delivery
Design and Development:
The apparel manufacturing process begins with design and development. Brands collaborate with designers and textile experts to conceptualize and create clothing that aligns with market trends and consumer preferences. Once the designs are finalized, [bangladesh clothing manufacturers](https://poshgarments.com/) they move to the next phase of pattern-making and sampling.
Sourcing of Raw Materials:
Raw materials play a crucial role in apparel production, and Bangladesh offers access to a wide range of textiles and fabrics. From cotton to synthetic blends, bangladesh clothing suppliers manufacturers source materials from both domestic and international markets, ensuring quality and cost-effectiveness.
Manufacturing and Production:
Once the materials are sourced, the manufacturing process kicks into high gear. Skilled workers transform the fabric into finished garments through a series of steps, Posh garments including cutting, stitching, and finishing. Quality control measures are implemented at every stage to maintain the highest standards of craftsmanship.
Packaging and Shipping:
After production, the finished garments undergo packaging to prepare them for shipment. Bangladesh's strategic location provides easy access to major shipping routes, [bangladesh clothing suppliers](https://poshgarments.com/) facilitating timely delivery to destinations worldwide. Stringent quality checks are conducted to ensure that the products meet the specified requirements before they leave the factory premises.
Challenges and Opportunities in Apparel Manufacturing
Compliance and Ethical Standards:
While Bangladesh's apparel industry has achieved remarkable success, it has also faced scrutiny over compliance with labor laws and ethical standards. In recent years, bangladesh clothing manufacturers efforts have been made to address these concerns through initiatives such as the Accord and the Alliance, which aim to improve factory safety and working conditions.
Sustainability and Environmental Impact:
Another challenge facing the apparel manufacturing sector is the need for greater sustainability and reduced environmental impact. As consumers become more conscious of ethical and environmental issues, garments manufacturer in Bangladesh there is a growing demand for eco-friendly and sustainable fashion. Bangladesh has taken steps to promote environmentally friendly practices, such as water recycling and waste management, to mitigate its ecological footprint. | ashraful1995 |
1,799,245 | MEDICAL RECORD SUMMARIZATION SERVICES | PennHealthInfo is a healthcare outsourcing company that offers a variety of services, such as medical... | 0 | 2024-03-23T06:44:54 | https://dev.to/pennhealthinfo/medical-record-summarization-services-5fi4 |
PennHealthInfo is a healthcare outsourcing company that offers a variety of services, such as medical record summarizing and coding. A [medical record summarization service](https://pennhealthinfo.com/services/medical-summarization/) is a time-consuming procedure that requires writing precise summaries of patient case information for use in legal proceedings, medical claim processing, and other applications. Pennhealthinfo provides a comprehensive medical record summary solution that streamlines the process by assuming responsibility for writing accurate summaries while freeing up your time for other duties. PennHealthInfo also provides crucial medical coding services. Medical coding errors can be costly, result in claim denials, and even produce unnecessary compliance issues, which can be even more expensive. PennHealth's skilled and professional team is ready to serve you with the highest quality medical coding services. They verify that submissions are accurate and error-free, and their skilled programmers adhere to quality standards to ensure that your coding is faultless.
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| pennhealthinfo | |
1,799,257 | Begin Your DisneyPlus Adventure Today at DisneyPlus.com | In the ever-evolving landscape of entertainment, one platform stands out as a beacon of magic,... | 0 | 2024-03-23T07:12:27 | https://dev.to/hickhanna/begin-your-disneyplus-adventure-today-at-disneypluscom-56op | In the ever-evolving landscape of entertainment, one platform stands out as a beacon of magic, nostalgia, and timeless storytelling: DisneyPlus. With its vast library of beloved classics, exciting new releases, and exclusive originals, DisneyPlus.com offers an unparalleled entertainment experience for audiences of all ages. In this article, we delve into the enchanting world of DisneyPlus.com/begin, exploring the myriad wonders that await those who dare to embark on their DisneyPlus adventure today.
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| hickhanna | |
1,799,276 | Accessing the Command Line | Pengantar ke Bash Shell Baris perintah adalah antarmuka berbasis teks yang dapat digunakan untuk... | 0 | 2024-03-23T08:02:31 | https://dev.to/chelseanayla/accessing-the-command-line-4hbj | ramadhanbersamaredhat | **Pengantar ke Bash Shell**
Baris perintah adalah antarmuka berbasis teks yang dapat digunakan untuk memasukkan instruksi ke sistem komputer. Baris perintah Linux disediakan oleh sebuah program yang disebut shell. Berbagai pilihan untuk program shell telah dikembangkan selama bertahun-tahun, dan pengguna yang berbeda dapat dikonfigurasi untuk menggunakan shell yang berbeda. Namun, sebagian besar pengguna tetap menggunakan shell default saat ini.
Shell default untuk pengguna di Red Hat Enterprise Linux adalah GNU Bourne-Again Shell **(bash)**. Bash adalah versi perbaikan dari salah satu shell yang paling sukses digunakan pada sistem seperti UNIX, Bourne Shell **(sh)**.
Ketika shell digunakan secara interaktif, shell akan menampilkan sebuah string ketika menunggu perintah dari pengguna. Ini disebut prompt shell. Ketika pengguna biasa memulai shell, prompt default diakhiri dengan karakter $, seperti yang ditunjukkan di bawah ini.
Karakter $ digantikan oleh karakter # jika shell berjalan sebagai superuser, root. Hal ini membuatnya lebih jelas bahwa ini adalah shell superuser, yang membantu menghindari kecelakaan dan kesalahan yang dapat memengaruhi keseluruhan sistem. Perintah shell superuser ditunjukkan di bawah ini.
Menggunakan **bash** untuk menjalankan perintah bisa sangat bermanfaat. Shell **bash** menyediakan bahasa skrip yang dapat mendukung otomatisasi tugas. Shell memiliki kemampuan tambahan yang dapat menyederhanakan atau memungkinkan operasi yang sulit dilakukan secara efisien dengan alat bantu grafis.
**Dasar-dasar Shell**
Perintah yang dimasukkan pada prompt shell memiliki tiga bagian dasar:
1. _Perintah_ untuk dijalankan
2. _Opsi_ untuk menyesuaikan perilaku perintah
3. _Argumen_, yang biasanya merupakan target dari perintah
_Perintah_ adalah nama program yang akan dijalankan. Perintah ini dapat diikuti oleh satu atau beberapa _opsi_, yang menyesuaikan perilaku perintah atau apa yang akan dilakukan. Opsi biasanya dimulai dengan satu atau dua tanda hubung (-a atau --all, misalnya) untuk membedakannya dari argumen. Perintah juga dapat diikuti oleh satu atau lebih _argumen_, yang sering kali mengindikasikan target yang harus dijalankan oleh perintah tersebut.
**Masuk ke Komputer Lokal**
Untuk menjalankan shell, Anda harus masuk ke komputer melalui terminal. Terminal adalah antarmuka berbasis teks yang digunakan untuk memasukkan perintah ke dalam dan mencetak output dari sistem komputer. Ada beberapa cara untuk melakukan hal ini.
Komputer mungkin memiliki keyboard dan layar perangkat keras untuk input dan output yang terhubung langsung dengannya. Anda dapat beralih di antara keduanya dengan menekan **Ctrl+Alt** dan tombol fungsi secara bersamaan. Lingkungan grafis juga berjalan pada konsol virtual. Untuk mendapatkan prompt shell, Anda harus memulai program terminal di lingkungan grafis. Prompt shell disediakan di jendela aplikasi program terminal grafis Anda.
Pada Red Hat Enterprise Linux 8, jika lingkungan grafis tersedia, layar login akan berjalan pada konsol virtual pertama, yang disebut tty1. Lima prompt login teks tambahan tersedia pada konsol virtual kedua hingga keenam. Layar login grafis terus berjalan pada konsol virtual pertama . Jika Anda sudah masuk ke sesi grafis, dan masuk sebagai pengguna lain pada layar login grafis atau menggunakan item menu **Switch User** untuk mengganti pengguna di lingkungan grafis tanpa keluar, lingkungan grafis lain akan dimulai untuk pengguna tersebut pada konsol virtual gratis berikutnya.
Bila Anda keluar dari lingkungan grafis, lingkungan tersebut akan keluar dan konsol fisik akan secara otomatis beralih kembali ke layar login grafis pada konsol virtual pertama. Server tanpa kepala tidak memiliki keyboard dan layar yang terhubung secara permanen.
**Masuk melalui Jaringan**
Pengguna dan administrator Linux sering kali perlu mendapatkan akses shell ke sistem jarak jauh dengan menyambungkannya melalui jaringan. Dalam lingkungan komputasi modern, banyak server tanpa kepala yang sebenarnya merupakan mesin virtual atau berjalan sebagai instance cloud publik atau privat. Sistem ini tidak berbentuk fisik dan tidak memiliki konsol perangkat keras yang nyata. Mereka bahkan mungkin tidak menyediakan akses ke konsol fisik atau konsol serial (simulasi).
Di Linux, cara paling umum untuk mendapatkan prompt shell pada sistem jarak jauh adalah dengan menggunakan Secure Shell (SSH). Sebagian besar sistem Linux (termasuk Red Hat Enterprise Linux) dan macOS menyediakan program baris perintah OpenSSH **ssh** untuk tujuan ini.
Dalam contoh ini, seorang pengguna dengan prompt shell pada host mesin menggunakan **ssh** untuk masuk ke sistem Linux jarak jauh remotehost sebagai pengguna remoteuser:
Perintah **ssh** mengenkripsi koneksi untuk mengamankan komunikasi dari penyadapan atau pembajakan kata sandi dan konten.
Beberapa sistem (seperti contoh cloud baru) tidak mengizinkan pengguna menggunakan kata sandi untuk masuk dengan **ssh** untuk keamanan yang lebih ketat. Cara alternatif untuk mengautentikasi ke mesin jarak jauh tanpa memasukkan kata sandi adalah melalui _autentikasi kunci publik._
Dengan metode autentikasi ini, pengguna memiliki berkas identitas khusus yang berisi _kunci privat_, yang setara dengan kata sandi, dan dirahasiakan. Akun mereka di server dikonfigurasikan dengan kunci publik yang cocok, yang tidak harus dirahasiakan. Ketika masuk, pengguna dapat mengonfigurasi **ssh** untuk menyediakan kunci privat dan jika kunci publik yang cocok dipasang pada akun di server jarak jauh tersebut, maka ia akan memasukkan mereka tanpa meminta kata sandi.
Pada contoh berikut, seorang pengguna dengan prompt shell pada host mesin masuk ke host jarak jauh sebagai remoteuser menggunakan ssh, menggunakan autentikasi kunci publik. Opsi -i digunakan untuk menentukan berkas kunci privat pengguna, yaitu mylab.pem. Kunci publik yang cocok sudah diatur sebagai kunci resmi dalam akun remoteuser.
Agar dapat berfungsi, berkas kunci privat harus dapat dibaca hanya oleh pengguna yang memiliki berkas tersebut. Pada contoh sebelumnya, di mana kunci privat berada pada berkas mylab.pem, perintah **chmod 600 mylab.pem** dapat digunakan untuk memastikan hal ini. Cara mengatur hak akses berkas akan dibahas secara lebih rinci pada bab selanjutnya.
Pengguna juga dapat mengkonfigurasi kunci privat yang dicoba secara otomatis, namun pembahasan tersebut berada di luar cakupan bagian ini. Referensi di akhir bagian ini berisi tautan ke informasi lebih lanjut tentang topik ini.
**Keluar**
Anda selesai menggunakan shell dan ingin keluar, Anda dapat memilih salah satu dari beberapa cara untuk mengakhiri sesi. Anda dapat memasukkan perintah **exit** untuk mengakhiri sesi shell yang sedang berjalan. Atau, akhiri Ketika sesi dengan menekan **Ctrl+D**.
Berikut ini adalah contoh pengguna yang keluar dari sesi SSH:
| chelseanayla |
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| vivik60851 |
1,799,326 | Solanas: Pushing the forefront of digital art and cultural value on the Solana blockchain | introduction The digital asset and non-fungible token (NFT) market has exploded in recent years,... | 0 | 2024-03-23T10:27:29 | https://dev.to/daoke/solanas-pushing-the-forefront-of-digital-art-and-cultural-value-on-the-solana-blockchain-2bi5 | webdev, javascript, beginners, programming |
introduction
The digital asset and non-fungible token (NFT) market has exploded in recent years, providing artists, creators and collectors with unprecedented opportunities. However, as the market expands, so do its challenges, such as transaction inefficiencies, high fees, and lack of ease of use. The Solanas project was born to address these challenges and advance the trading and collection of digital art and cultural value by leveraging the efficient performance of the Solana blockchain.
Project overview
The Solanas project is based on the Solana blockchain and is dedicated to minting, trading and holding NFTs of unique artistic and cultural value. The project utilizes the high throughput and low transaction fees of the Solana blockchain to promote the trading and collection of digital art and cultural values and promote the development of the digital asset industry.
What’s new about Solanas
The Solanas project demonstrates important improvements to existing systems by introducing new NFT standards and smart contracts that optimize the minting and trading process. These innovations make full use of the technical advantages of Solana blockchain, such as automating transaction processes, increasing transaction speed and reducing costs, improving the efficiency and user experience of the entire ecosystem.
A new definition of inscription and its value
inscription concept
Inscriptions in the Solanas ecosystem are NFTs that represent unique artistic or cultural value, emphasizing the uniqueness and irreplaceability of each piece.
Limited quantity
To ensure its scarcity and value, the total circulation of the Solanas project is set at 500 million inscriptions.
## Economic model and token distribution
Inscription distribution
The maximum number of minted inscriptions per wallet is 50,000, which is designed to encourage wider participation and avoid market monopoly.
cost of participation
The extremely low wallet participation fee and the token airdrop after minting the inscription significantly lower the threshold for participation and encourage users to participate.
Transaction types and operations
Including operations such as minting, mapping, transfer, listing/unlisting, and purchasing, increasing the flexibility and liquidity of the ecosystem.
Technology Architecture
The technical architecture of the Solanas project includes blockchain infrastructure, smart contracts, layered architecture and security mechanisms, aiming to provide an efficient, secure and easy-to-use platform.
Project goals and prospects
Solanas aims to establish a stable, fair and sustainable digital asset ecosystem. Through technology upgrades and ecosystem expansion, it will introduce more types of artworks, improve trading platform functions and increase user interaction elements.
community and collaboration
Community Building
Solanas is committed to building and maintaining a strong community by providing educational resources, organizing events, and encouraging community exchange and cooperation. The active participation of community members is crucial to the success of the project, and they will be encouraged to participate in the project decision-making process to ensure transparency and fairness of the project.
Partnerships
Solanas will seek to establish partnerships with the art community, technology community, and other blockchain projects to expand its influence, improve its technical capabilities, and introduce more art creators, technology developers, and potential users. These collaborations will contribute to technological, marketing and operational developments, promoting ecosystem diversification and innovation.
Risks and Challenges
technology risk
As a blockchain project, Solanas faces risks such as network security threats and smart contract vulnerabilities. The project will invest resources in security audits and system testing to ensure the security and stability of the platform.
market risk
In the rapidly developing blockchain and NFT market, Solanas needs to continue to innovate to attract and retain users. This requires projects to develop new artistic varieties, improve user experience, expand community engagement, and expand market reach through partnerships.
regulatory risk
There is uncertainty about the regulatory environment for blockchain technology and NFT markets globally. Solanas will continue to monitor changes in laws and regulations and ensure that its operations comply with all applicable legal and regulatory requirements.
Sustained development risks
Keeping the ecosystem growing and active is a challenge. Solanas needs to provide continued innovation and value to support all ecosystem participants, including artists, collectors, investors, and technology developers.
in conclusion
Through its innovative technology platform and economic model, the Solanas project aims to build an ecosystem that supports digital art and cultural value transactions. Although it faces many challenges such as technology, market and regulations, through continuous innovation, partnership building and community support, Solanas is expected to overcome these challenges and become a pioneer in the field of digital art. The project team is committed to promoting the popularization and value recognition of digital art and culture, and providing new investment and collection channels for global users. Looking to the future, Solanas plans to continue to expand its ecosystem, introduce more types of artworks, and improve the functions of the trading platform. Add user interactive elements to establish a stable, fair and sustainable digital asset ecosystem. | daoke |
1,799,333 | 2 ways to 🔧 set up Nextjs with MongoDB 🛢️ and Mongoose | In this blog, we will learn how to set up a Next.js 14 project with MongoDB and Mongoose. Setting up... | 0 | 2024-03-23T10:48:58 | https://dev.to/thatanjan/2-ways-to-set-up-nextjs-with-mongodb-and-mongoose-4afo | javascript, nextjs, mongodb, react | In this blog, we will learn how to set up a Next.js 14 project with MongoDB and Mongoose.
Setting up Nextjs with MongoDB can be tricky. But I will show you how to do that in 2 ways.
## Setup database
I will use MongoDB Atlas for this tutorial.
1. Go to [MongoDB Atlas](https://www.mongodb.com/cloud/atlas) and create an account.
2. Create a organization if you haven't created any and a project.
3. Create a cluster and choose the free tier.
4. Create a database user and add the IP address to the IP access list.
5. Create a database and a collection. Let's call both of them `posts`
Now we have a database and a collection.
6. Get the connection string from the cluster and save it for later.
- Go to overview button on sidebar. And then use connection method.
- Choose correct driver(nodejs latest)
- Copy the connection string
You can also check out the video tutorial to get a better understanding.
{% youtube tFp4UhfDoQU %}
## Create a Next.js project
Use the command below to create a new Next.js project. Make sure to use app router.
```bash
npx create-next-app nextjs-mongodb
```
## Install dependencies
Install the `mongoose` package.
```bash
npm install mongoose
```
## Connect to database
Create a new `.env.local` file and add the connection string to it.
```env
MONGO_URI=your_connection_string
# Example
MONGO_URI=mongodb+srv://anjan:anjan@cluster0.est6lzg.mongodb.net/posts?retryWrites=true&w=majority
```
Replace `<password>` with database password. And add db name after `mongodb.net/` and before `?`. Check the example above.
Create a new file `db.js` and add the code below.
```javascript
// /src/app/lib/db.js
import mongoose from 'mongoose'
const MONGODB_URI = process.env.MONGO_URI
if (!MONGODB_URI) {
throw new Error(
'Please define the MONGODB_URI environment variable inside .env.local',
)
}
let cached = global.mongoose
if (!cached) {
cached = global.mongoose = { conn: null, promise: null }
}
async function dbConnect() {
if (cached.conn) {
return cached.conn
}
if (!cached.promise) {
const opts = {
bufferCommands: false,
}
cached.promise = mongoose.connect(MONGODB_URI, opts).then(mongoose => {
console.log('Db connected')
return mongoose
})
}
try {
cached.conn = await cached.promise
} catch (e) {
cached.promise = null
throw e
}
return cached.conn
}
export default dbConnect
```
**Explanation:**
1. With this `dbConnect` function, we are connecting to the database and caching the connection.
2. We are only connecting to the database once and reusing the connection. You don't want to connect to the database multiple times.
## Where to use `dbConnect` function?
This is a tricky question. In basic Node.js projects, you can connect to the database in the entry file `index.js` and you don't call that again.
But in Nextjs, there isn't any entry file. Because all the pages and route handlers are specific to the pages or API routes.
But now you can use the experimental feature called `instrumentation`. It will allow you to execute any startup script and this runs only once when the nextjs server starts.
Enable the `instrumentation` feature by adding the code below to the `next.config.js` file.
```javascript
module.exports = {
experimental: {
instrumentationHook: true,
},
}
```
Create a new file `instrumentation.js` at the root of project or inside `src` directory if it exist. And add the code below.
```javascript
import connect from '@/lib/db'
export async function register() {
await connect()
}
```
You just need to export the `register` function and call the `dbConnect` function inside it.
If the connection is successful, you will see the message `Db connected` in the console even before you access any page or api route.
## What if you don't want to use `instrumentation`?
In that case, you have to call the `dbConnect` function on every page or api route where you want to access the database.
Because if you try to access the page and you don't call the connection function, you will get an error.
For example, you only call the function in the `/home/page.js` file but the first user visiting the `/about/page.js` file will get an error. Because the connection is not established yet.
Once you have a connection, you can create model to interact with the database.
## Create a model
Create a new file `post.js` and add the code below.
```javascript
import mongoose from 'mongoose'
const postSchema = new mongoose.Schema({
title: {
type: String,
required: true,
},
description: {
type: String,
required: true,
},
})
export default mongoose.models.Post || mongoose.model('Post', postSchema)
```
**Explanation:**
1. We create a new schema with `title` and `description` fields.
2. We export the model. If the model already exists, we use that. Otherwise, we create a new model.
## Add new post
Let's create a form and a server action
```javascript
export default async function Home() {
return (
<form action={addPost}>
<div>
<label>Title</label>
<input name='title' type='text' />
</div>
<div>
<label>Description</label>
<textarea name='description' />
</div>
<button>Submit</button>
</form>
)
}
```
Create a server action in a separate file.
```javascript
'use server'
import Post from '@/models/Post'
const addPost = async post => {
const title = post.get('title')
const description = post.get('description')
const newPost = new Post({ title, description })
return newPost.save()
}
export { addPost }
```
**Explanation:**
1. We have a server action that will add a new post to the database.
2. It will be called when the form is submitted.
## Get all post
Let's create another function:
```javascript
const getPosts = async () => {
return Post.find()
}
```
Render the posts.
```javascript
import { getPosts } from '@/actions/action'
export default async function Home() {
const posts = await getPosts()
return (
<div>
{posts.map(post => (
<div key={post._id}>
<h1>{post.title}</h1>
<p>{post.description}</p>
</div>
}
<form action={addPost}>
<div>
<label>Title</label>
<input name='title' type='text' />
</div>
<div>
<label>Description</label>
<textarea name='description' />
</div>
<button>Submit</button>
</form>
</div>
)
}
```
Now you should get the list of posts from the database.
That's it. You have successfully set up a Next.js 14 project with MongoDB and Mongoose.
| thatanjan |
1,799,430 | Let's go for camping | This is a submission for DEV Challenge v24.03.20, Glam Up My Markup: Camp Activities What I... | 0 | 2024-03-23T13:29:57 | https://dev.to/ashishsaxena16108/lets-go-for-camping-4inh | frontendchallenge, devchallenge, css, javascript | _This is a submission for DEV Challenge v24.03.20, Glam Up My Markup: Camp Activities_
## What I Built
I designed the given code based on the topic Camp Activities using mostly CSS and a little bit of Javascript with a beautiful background images that changes when user will select favourite camp activity.
## Demo
Check My Code:https://github.com/ashishsaxena16108/frontendchallenge
## Journey
I have learned many new things in CSS and Javascript, as I am a beginner in frontend by this challenge i have improved my skills
much better | ashishsaxena16108 |
1,799,438 | Linear and Binary search | Linear Search: = Linear search Definition: Linear search, also known as sequential... | 0 | 2024-03-23T13:38:40 | https://dev.to/ajithr116/linear-and-binary-search-2mkc | algorithms, datas, javascript, search | ### Linear Search: = [Linear search](https://github.com/ajithr116/Data-Structures/tree/main/03-linearSearch)
- **Definition**: Linear search, also known as sequential search, is a simple searching algorithm that iterates through each element in a collection (e.g., array or list) sequentially until the target element is found or the end of the collection is reached.
- **Algorithm**: Starting from the beginning of the collection, each element is checked one by one until the target element is found or the end of the collection is reached.
- **Complexity**: Linear search has a time complexity of O(n), where n is the number of elements in the collection. This means the time taken to search grows linearly with the size of the collection.
- **Suitability**: Linear search is suitable for small collections or when the elements are not sorted. It's easy to implement and understand but may not be efficient for large collections.
#### Advantages:
1. **Simplicity**: Linear search is straightforward to implement and easy to understand. It involves iterating through each element sequentially.
2. **Applicability**: Linear search can be applied to both sorted and unsorted collections. It doesn't require any pre-processing of the data.
#### Disadvantages:
1. **Efficiency**: Linear search has a time complexity of O(n), meaning it may not be efficient for large collections. As the size of the collection grows, the time taken for searching increases linearly.
2. **Performance**: Linear search may not be suitable for searching in very large datasets or situations where fast retrieval is required, as it checks each element one by one.
### 1. Linear Search
```javascript
function linearSearch(arr, target) {
for (let i = 0; i < arr.length; i++) {
if (arr[i] === target) {
return i + 1; // Return index of the found element (1-based indexing)
}
}
return "not found";
}
```
Linear search iterates through the array sequentially until it finds the target element or reaches the end. It has a time complexity of O(n), where n is the number of elements in the array.
### Binary Search:=[Binary search](https://github.com/ajithr116/Data-Structures/tree/main/04-binarySearch)
- **Definition**: Binary search is an efficient searching algorithm used to find the position of a target element in a sorted collection (e.g., array or list). It works by repeatedly dividing the search interval in half until the target element is found or the interval is empty.
- **Algorithm**: Binary search compares the target element with the middle element of the collection. If the target is less than the middle element, the search continues in the lower half of the collection; if it's greater, the search continues in the upper half. This process repeats until the target element is found or the interval is empty.
- **Complexity**: Binary search has a time complexity of O(log n), where n is the number of elements in the sorted collection. This means the time taken to search grows logarithmically with the size of the collection, making it significantly faster than linear search for large collections.
- **Suitability**: Binary search is highly efficient for searching in sorted collections. It's commonly used in scenarios where the data is sorted and requires fast retrieval, such as in searching algorithms, database operations, and more.
#### Advantages:
1. **Efficiency**: Binary search has a time complexity of O(log n), making it significantly faster than linear search for large collections. It's highly efficient, especially for sorted collections.
2. **Fast Retrieval**: Binary search quickly narrows down the search space by dividing the collection in half at each step, leading to faster retrieval of the target element.
#### Disadvantages:
1. **Requirement of Sorted Data**: Binary search requires the data to be sorted beforehand. If the data is not sorted, additional preprocessing steps are needed, which can add complexity and time.
2. **Implementation Complexity**: While the concept of binary search is straightforward, its implementation may be more complex compared to linear search, especially for beginners.
```javascript
function binary(arr, target, start, end) {
while (start <= end) {
let mid = Math.floor((start + end) / 2);
if (arr[mid] <= target) {
start = mid + 1;
} else {
end = mid - 1;
}
}
return start;
}
```
Binary search finds the position of a target element in a sorted array by repeatedly dividing the search interval in half. It has a time complexity of O(log n), where n is the number of elements in the array.
### Conclusion
- Linear search is suitable for small arrays or unsorted arrays.
- Binary search is efficient for searching in sorted arrays.
[Binary search](https://github.com/ajithr116/Data-Structures/tree/main/04-binarySearch)
[Linear search](https://github.com/ajithr116/Data-Structures/tree/main/03-linearSearch)
| ajithr116 |
1,799,440 | শার্দিয়াম ইথেরিয়াম-সামঞ্জস্যপূর্ণ আরপিসি পদ্ধতির ইন্টিগ্রেশন সম্পূর্ণ করে | আমরা মেইননেটের দিকে আমাদের যাত্রায় একটি বড় মাইলফলক শেয়ার করতে পেরে উত্তেজিত - ২০২৩ সালের শেষের... | 0 | 2024-03-23T13:49:29 | https://dev.to/shafiqulmridha/shaardiyaam-itheriyaam-saamnyjsypuurnn-aarpisi-pddhtir-inttigreshn-smpuurnn-kre-195h | আমরা মেইননেটের দিকে আমাদের যাত্রায় একটি বড় মাইলফলক শেয়ার করতে পেরে উত্তেজিত - ২০২৩ সালের শেষের দিকে [শার্দিয়াম](https://shardeum.org/)-এ সমস্ত প্রয়োজনীয় ইথেরিয়াম-সামঞ্জস্যপূর্ণ আরপিসি পদ্ধতির সফল একীকরণ। এটি গত বছর আমাদের প্রাথমিক প্রচেষ্টার পরে আসে, যেমন আরপিসি পদ্ধতিগুলি বাস্তবায়নের সাথে শুরু করে ডব্লিউএসেস _eth_subscribe_. এই অপ্টিমাইজেশানটি শার্দিয়াম এর কার্যকারিতা বাড়ানোর একটি গুরুত্বপূর্ণ অংশ। এটি জোর দেওয়া উল্লেখযোগ্য যে আমরা বিশেষ শার্ডিয়াম আরপিসি পদ্ধতি চালু করেছি। এগুলি স্ট্যান্ডার্ড ইথেরিয়াম আরপিসি-এর পরিপূরক করার জন্য ডিজাইন করা হয়েছে, অনন্য পার্থক্যগুলিকে ক্যাপচার করে যা শার্দিয়াম টেবিলে এনেছে বিরামহীন বিকাশকারীর অভিজ্ঞতা এবং এটি অফার করা অত্যাধুনিক উদ্ভাবনগুলির শিক্ষার প্রচার করে৷ এই সেটআপটি শার্দিয়াম-এর স্মার্ট কন্ট্রাক্ট প্ল্যাটফর্মকে আরও উন্নত করে, শুধুমাত্র ইভিএম-ভিত্তিক ডেভেলপারদের জন্য নয়, কিন্তু বিতরণ করা লেজার/ব্লকচেন ইকোসিস্টেমের সমস্ত ডেভেলপারদের জন্য প্রবেশের বাধা কমিয়ে দেয়।
ইথেরিয়াম-সামঞ্জস্যপূর্ণ আরপিসি পদ্ধতিগুলির আমাদের বাস্তবায়নের সুনির্দিষ্ট বিষয়ে ডাইভিং করার আগে, আসুন একটু সময় নিয়ে অন্বেষণ করি কেন শার্দিয়াম আপনার ডেপ্প্স তৈরি বা স্থানান্তর করার জন্য পছন্দের প্ল্যাটফর্ম হিসাবে দাঁড়িয়ে আছে, বিশেষ করে নতুন এল১ ব্লকচেইন, মডুলার সলিউশন, সহ জনবহুল ল্যান্ডস্কেপে। এবং এল২ চেইন।
## কেন আমি শার্দিয়াম উপর নির্মাণ করা উচিত?
শার্দিয়াম [লেয়ার ওয়ান](https://shardeum.org/blog/what-is-layer-1-blockchain/) স্কেলেবিলিটি এবং বিকেন্দ্রীকরণ বাড়ানোর জন্য নিবেদিত, [স্মার্ট কন্ট্রাক্ট](https://shardeum.org/blog/smart-contracts/) ল্যাঙ্গুয়েজ, ভার্চুয়াল মেশিন এবং ব্লক এক্সপ্লোরারের মতো মূল ব্যবহারকারী-মুখী উপাদানগুলিকে নতুন করে উদ্ভাবনের চেয়ে এই ক্ষেত্রগুলিকে অগ্রাধিকার দেওয়ার জন্য বেছে নেওয়া হয়েছে। এই কৌশলগত ফোকাসটি এই বিশ্বাসের উপর ভিত্তি করে যে ইথেরিয়াম ইতিমধ্যেই সলিডিটি এবং ভাইপারের মতো ডেভেলপার বন্ধুত্বপূর্ণ প্রোগ্রামিং ভাষাগুলির দ্বারা পরিপূরক স্মার্ট কন্ট্রাক্ট ডেভেলপমেন্ট এবং ডেপ্প্স এর জন্য একটি শক্তিশালী স্যুট সরবরাহ করে। এই প্রতিষ্ঠিত সংস্থানগুলিকে কাজে লাগানোর মাধ্যমে, আমরা উন্নয়ন প্রক্রিয়াগুলিকে দ্রুত-ট্র্যাক করতে এবং ব্লকচেইন প্রযুক্তির পূর্ণ সম্ভাবনাকে কাজে লাগাতে চাই। যাইহোক, প্রোটোকল স্তরে একটি স্বাধীন স্মার্ট কন্ট্রাক্ট প্ল্যাটফর্মের প্রবর্তনের সাথে, শার্দিয়াম এমন একটি পণ্য তৈরিতে মনোনিবেশ করে যা ইথেরিয়াম এবং অন্যান্য এল১ চেইনের প্রকৃত ত্রুটিগুলিকে সমাধান করে - একটি শার্ডেড চেইন যা উচ্চ মাত্রার স্কেলেবিলিটি, বিকেন্দ্রীকরণ বজায় রাখতে রৈখিকভাবে স্বয়ংক্রিয়ভাবে স্কেল করে। এবং নেটওয়ার্কে চাহিদা নির্বিশেষে লেনদেন ফি স্থায়ীভাবে খুবই কম থাকে তা নিশ্চিত করার জন্য নিরাপত্তা।
কেকের উপর আইসিং হল শার্দিয়াম-এর লেনদেন প্রক্রিয়া করার ক্ষমতা এবং স্বতন্ত্রভাবে পারমাণবিক এবং ক্রস শার্ড কম্পোজেবিলিটি সমান্তরাল লেনদেন সম্পাদনের সাথে ঐক্যমতে পৌঁছানোর ক্ষমতা। এই উন্নয়নটি কার্যকরভাবে ডেভেলপারদের সমসাময়িক ব্লকচেইন এবং উচ্চ মাপযোগ্যতার লক্ষ্যে শর্ডেড নেটওয়ার্কে জটিল স্মার্ট কন্ট্রাক্ট কলের সম্মুখীন হওয়া সাধারণ প্রতিবন্ধকতা দূর করে। যদিও শার্দিয়াম স্বাভাবিকভাবেই ইভিএম ডেভেলপারদের কাছে ইভিএম ভিত্তিক লেয়ার ১ নেটওয়ার্ক হিসাবে আবেদন করছে, আমরা ইভিএম ইকোসিস্টেমের বাইরে যারা কাজ করে তাদের আমাদের ভাঁজে স্বাগত জানাতে সমানভাবে প্রতিশ্রুতিবদ্ধ।
ব্লকচেইন স্পেস বৈচিত্র্যের উপর ভর করে, বিভিন্ন ব্লকচেইনের মধ্যে আন্তঃক্রিয়াশীলতা বৃদ্ধির জন্য নিবেদিত অসংখ্য প্রোটোকল সহ। শার্দিয়াম একটি লেয়ার ১ সমাধান অফার করে দাঁড়িয়েছে যা নির্ধারকভাবে [স্কেলেবিলিটি ট্রিলেমাকে](https://shardeum.org/blog/shardeum-solves-blockchain-trilemma/) সম্বোধন করে, প্ল্যাটফর্ম জুড়ে মসৃণ আন্তঃকার্যক্ষমতা সক্ষম করার জন্য একটি গুরুত্বপূর্ণ পদক্ষেপ। আমাদের প্রতিশ্রুতি শীঘ্রই [ওপেন-সোর্সিং](https://shardeum.org/blog/shardeum-open-source/) প্রোটোকলের প্রসারিত, বিস্তৃত ইকোসিস্টেমকে অনুপ্রাণিত করতে এবং উন্নত করতে। আপনার বর্তমান প্ল্যাটফর্ম নির্বিশেষে একটি উল্লেখযোগ্য প্রভাব ফেলতে চাইছেন এমন ডেভেলপারদের জন্য, শার্দিয়াম এমন একটি ফাউন্ডেশন গড়ে তোলার জন্য একটি অনন্য, অপরিহার্য সুযোগ অফার করে যা কেবলমাত্র পরিমাপযোগ্য নয় বরং ২ বছরের মধ্যে ইতিমধ্যেই [১ মিলিয়ন+ সম্প্রদায়ের সদস্যদের](http://discord.gg/shardeum) একটি বিশাল সম্প্রদায়ের সাথে বিকাশকারী বন্ধুত্বপূর্ণ। শুরু করা.
## ইথেরিয়াম জেসন-আরপিসি পদ্ধতি কি কি?
ইথেরিয়াম জেসন-আরপিসি পদ্ধতি হল জেসন ফর্ম্যাটে এনকোড করা দূরবর্তী পদ্ধতি কলের (আরপিসি) একটি সেট, যা ইথেরিয়াম নেটওয়ার্কের সাথে মিথস্ক্রিয়া সক্ষম করে। এই পদ্ধতিগুলি ব্লকচেইন ডেটা জিজ্ঞাসা করা, লেনদেন পাঠানো এবং নেটওয়ার্ক পরিবর্তনগুলি ট্র্যাক করার মতো বিস্তৃত পরিসরের ক্রিয়াকলাপ সম্পাদনের অনুমতি দেয়। মূলত, তারা বাহ্যিক অ্যাপ্লিকেশন বা ক্লায়েন্ট এবং ইথেরিয়াম ব্লকচেইনের মধ্যে একটি সেতু হিসাবে কাজ করে, তথ্য এবং আদেশের নির্বিঘ্ন প্রবাহকে সহজতর করে। _পদ্ধতির এই সেটটি সম্মিলিতভাবে একটি এপিআই গঠন করে, বিকাশকারীদের জন্য ইথেরিয়াম নেটওয়ার্কের সাথে অ্যাক্সেস এবং মিথস্ক্রিয়াকে স্ট্রিমলাইন করে।_
ইথেরিয়াম-এর জেসন-আরপিসি পদ্ধতিগুলিকে শার্দিয়াম-এ অন্তর্ভুক্ত করা তার প্ল্যাটফর্মের ক্ষমতার একটি উল্লেখযোগ্য উন্নতিকে চিহ্নিত করে। এই পদ্ধতিগুলি, _eth_feeHistory_ থেকে _eth_chainId_ পর্যন্ত, সুনির্দিষ্ট লেনদেন ট্র্যাকিং, রিয়েল-টাইম মনিটরিং এবং দক্ষ নেটওয়ার্ক ইন্টারঅ্যাকশন সক্ষম করার ক্ষেত্রে গুরুত্বপূর্ণ। এই পদ্ধতিগুলি অবলম্বন করে, শার্দিয়াম শুধুমাত্র ইথেরিয়াম ডেভেলপারদের জন্য একটি মসৃণ রূপান্তরকে সহজ করে না বরং উন্নত কার্যকারিতা এবং বৃহত্তর সম্ভাবনার সাথে এর ইকোসিস্টেমকেও সমৃদ্ধ করে। এই পদ্ধতিগুলি একটি শক্তিশালী, ব্যবহারকারী-কেন্দ্রিক প্ল্যাটফর্ম তৈরি করার জন্য শার্দিয়াম-এর প্রতিশ্রুতির প্রতীক, যা বিস্তৃত ওয়েব৩ স্পেসে উদ্ভাবন এবং সহযোগিতার জন্য প্রস্তুত। যারা এই পদ্ধতিগুলির সাথে অপরিচিত তাদের জন্য, আসুন ডুব দিয়ে দেখি তাদের প্রত্যেকে কী করে!
## জনপ্রিয় ইথেরিয়াম আরপিসি পদ্ধতি
নিম্নলিখিত পদ্ধতিগুলি বিশেষ করে বিকাশকারী এবং তৃতীয় পক্ষের প্রকল্পগুলির মধ্যে ব্লকচেইন নেটওয়ার্কগুলি থেকে তথ্য আহরণের জন্য জনপ্রিয় যা তাদের মূল্যবান পণ্য এবং পরিষেবাগুলির একটি অ্যারে তৈরি করতে সক্ষম করে৷
- **eth_feeHistory:** এই পদ্ধতিটি ঐতিহাসিক নেটওয়ার্ক ফিগুলির একটি পরিসর পুনরুদ্ধার করে যা সময়ের সাথে সাথে গ্যাসের মূল্য বিশ্লেষণের জন্য দরকারী।
- **eth_getBlockReceipts:** এই পদ্ধতিটি একটি প্রদত্ত ব্লকে সমস্ত লেনদেনের জন্য রসিদের একটি তালিকা প্রদান করে এবং এটি লেনদেন নিশ্চিতকরণ এবং স্থিতি ট্র্যাকিংয়ের জন্য সহায়ক।
- **eth_getBlockTransactionCountByHash:** এই পদ্ধতিটি একটি ব্লকে লেনদেনের সংখ্যা প্রদান করে, এটির হ্যাশ দ্বারা চিহ্নিত, ব্লক বিশ্লেষণের জন্য দরকারী।
- **eth_getBlockTransactionCountByNumber:** এই পদ্ধতিটি একটি ব্লকে লেনদেনের সংখ্যা প্রদান করে, কিন্তু ব্লকটিকে তার হ্যাশের পরিবর্তে তার সংখ্যা দ্বারা চিহ্নিত করে।
- **eth_getTransactionByBlockHashAndIndex:** এটি ব্লক হ্যাশ এবং ব্লকের মধ্যে সূচক অবস্থানের উপর ভিত্তি করে একটি লেনদেন নিয়ে আসে।
- **eth_getTransactionByBlockNumberAndIndex:** এই পদ্ধতিটি সেই ব্লকের মধ্যে তার ব্লক নম্বর এবং সূচক দ্বারা একটি লেনদেন পুনরুদ্ধার করে।
- **eth_newPendingTransactionFilter:** এই পদ্ধতিটি নতুন মুলতুবি লেনদেন সম্পর্কে অবহিত করার জন্য একটি ফিল্টার তৈরি করে। সম্প্রচারিত কিন্তু এখনও নিশ্চিত করা হয়নি এমন লেনদেন ট্র্যাক করার জন্য এটি কার্যকর।
- **eth_chainId:** এটি নেটওয়ার্কের বর্তমান চেইন আইডি প্রদান করে, সঠিক ইথেরিয়াম নেটওয়ার্কে লেনদেনের অখণ্ডতা নিশ্চিত করার জন্য একটি গুরুত্বপূর্ণ তথ্য।
## ইথেরিয়াম আরপিসি পদ্ধতি শার্দিয়াম কাস্টম প্রয়োজনীয়তা পরিপূরক
শার্দিয়াম শুধুমাত্র ইথেরিয়াম-এর জেসন-আরপিসি পদ্ধতিগুলির সাথে সামঞ্জস্যের গ্যারান্টি দেয় না, তবে আমাদের বিদ্যমান আরপিসি পদ্ধতিগুলি ইথেরিয়াম-এর সাথে ঘনিষ্ঠভাবে সারিবদ্ধ প্রতিক্রিয়াগুলি প্রদান করে তা নিশ্চিত করার জন্যও চেষ্টা করে৷ এই পদ্ধতিটি ইথেরিয়াম-এর সাথে পরিচিত ডেভেলপারদের জন্য নিরবচ্ছিন্ন ইন্টিগ্রেশন নিশ্চিত করে, গ্রহণের সহজতা এবং আন্তঃকার্যযোগ্যতা বৃদ্ধি করে। এবং উল্লিখিত হিসাবে, এটি ডেভেলপারদের শেখার জন্য যে সময় ব্যয় করতে হবে তাও কমিয়ে দেয়, ইথেরিয়াম-ভিত্তিক প্রকল্পগুলিতে আমাদের প্ল্যাটফর্মের দক্ষ রূপান্তর এবং ব্যবহারের অনুমতি দেয়।
উদাহরণ স্বরূপ, শার্দিয়াম-এর _eth_feeHistory_ জেসন-আরপিসি পদ্ধতি বাস্তবায়নের প্রেক্ষাপটে, ইথেরিয়াম-এর তুলনায় একটি উল্লেখযোগ্য পার্থক্য বিদ্যমান। _BaseFeePerGas_ ফেরত দেওয়ার পরিবর্তে, যা ইথেরিয়াম-এর একটি আদর্শ উপাদান, শার্দিয়াম নির্দিষ্ট ব্লকের জন্য গ্যাসের দামের একটি অ্যারে প্রদান করে। এই বিচ্যুতিটি শার্দিয়াম-এর অনন্য লেনদেন কাঠামোর কারণে, যা _baseFeePerGas_ অন্তর্ভুক্ত করে না এবং মেভ-এর জন্য দুর্ভেদ্য। গ্যাসের দামের প্রদত্ত অ্যারে শার্দিয়াম-এ লেনদেনের খরচের একটি ঐতিহাসিক দৃষ্টিভঙ্গি অফার করে, যা ব্যবহারকারীদের নেটওয়ার্কের মধ্যে সময়ের সাথে সাথে গ্যাসের দামের প্রবণতা বিশ্লেষণ ও বুঝতে সক্ষম করে।
আরেকটি উদাহরণ হল _eth_getBlockReceipts_ এবং _eth_getBlockTransactionCountByHash_-এর মতো স্ট্যান্ডার্ড ব্লক-সম্পর্কিত প্রশ্নগুলির বাস্তবায়নের সাথে একটি উল্লেখযোগ্য পার্থক্য। পার্থক্যটি এই কারণে যে শার্দিয়াম এর প্রযুক্তিগতভাবে একটি ব্লকহীন স্থাপত্য রয়েছে। ব্লকের পরিবর্তে, শার্দিয়াম-এর চক্র রয়েছে যে লেনদেনগুলি নেটওয়ার্কে পৃথকভাবে প্রক্রিয়া করা হয়, যার পরে প্রক্রিয়াকৃত লেনদেনগুলিকে আর্কাইভ নোডে স্থানান্তর করার আগে পূর্ব-নির্ধারিত ব্যবধানে গ্রুপ বা ব্লকে একত্রিত করা হয়। এটি অনুমান করা হয় যে শার্দিয়ামে ১ চক্র ৬০ সেকেন্ড হবে এবং প্রতি ৬ সেকেন্ডে ১টি ব্লক তৈরি হয়।
## কেন শার্দিয়াম ইথেরিয়াম জেসন-আরপিসি পদ্ধতি প্রয়োজন?
যেহেতু শার্দিয়াম প্রযুক্তিগতভাবে একটি ব্লকচেইন নয় তবে এটি ইভিএমকেও অন্তর্ভুক্ত করে, তাই এর মূল প্রযুক্তিগুলিকে একীভূত করা অনন্য প্রযুক্তিগত চ্যালেঞ্জ উপস্থাপন করে। যাইহোক, শার্দিয়াম এ ইথেরিয়াম জেসন-আরপিসি পদ্ধতিগুলিকে একীভূত করা বিভিন্ন কারণে গুরুত্বপূর্ণ:
**১. সামঞ্জস্য এবং পরিচিতি**
ইথেরিয়াম এর আরপিসি পদ্ধতি বাস্তবায়ন করে, শার্দিয়াম ইথেরিয়াম এর ইকোসিস্টেমে ইতিমধ্যে দক্ষ বিকাশকারীদের জন্য একটি পরিচিত পরিবেশ সরবরাহ করে। এটি শেখার বক্ররেখা হ্রাস করে এবং ইথেরিয়াম ভিত্তিক সম্প্রদায়ের জন্য গ্রহণকে ত্বরান্বিত করে যা সমগ্র স্মার্ট চুক্তি ইকোসিস্টেমের ৮৫% এর বেশি প্রতিনিধিত্ব করে।
**২. ইন্টারঅপারেবিলিটি**
ইথেরিয়াম এর আরপিসি পদ্ধতিগুলি বিস্তৃত বিকাশকারী বিশ্বে একটি মান। শার্দিয়াম-এর এই পদ্ধতিগুলি গ্রহণ করা বিদ্যমান সরঞ্জাম এবং ইথেরিয়াম-এর জন্য ডিজাইন করা অ্যাপ্লিকেশনগুলির সাথে আন্তঃকার্যযোগ্যতা নিশ্চিত করে, এর একীকরণ ক্ষমতা বাড়ায়।
**৩. ব্যাপক কার্যকারিতা**
আরপিসি পদ্ধতির একটি সম্পূর্ণ পরিসর বাস্তবায়ন শার্ডিমকে আরও সম্পূর্ণ এবং শক্তিশালী আরপিসি সার্ভার অভিজ্ঞতা প্রদান করতে সক্ষম করে। এটি নিশ্চিত করে যে সমস্ত প্রয়োজনীয় কার্যকারিতা বিভিন্ন মিথস্ক্রিয়াগুলির জন্য উপলব্ধ।
**৪. শার্দিয়াম এর আর্কিটেকচারের জন্য কাস্টমাইজেশন**
যদিও শার্দিয়াম ইথেরিয়াম-এর আরপিসি স্পেসিফিকেশনের সাথে মেলানোর চেষ্টা করে, এটি তার অনন্য লেজার কাঠামোর সাথে মানানসই করার জন্য নির্দিষ্ট পদ্ধতিগুলিকে খাপ খায় বা বাদ দেয়। এই কাস্টমাইজেশন নিশ্চিত করে যে আরপিসি পদ্ধতিগুলি শার্দিয়াম এর আর্কিটেকচারের সাথে ভালভাবে সারিবদ্ধ, দক্ষতা এবং কর্মক্ষমতা বৃদ্ধি করে।
## শার্দিয়াম মধ্যে ইথেরিয়াম আরপিসি পদ্ধতি বাস্তবায়নের সুবিধা
শার্ডিয়ামে ইথেরিয়াম জেসন-আরপিসি পদ্ধতির একীকরণের মাধ্যমে আনা সুবিধাগুলির একটি বিস্তৃত অন্বেষণ শুরু করার সময়, এই সুবিধাগুলির গভীরতা এবং প্রস্থ বোঝা অত্যন্ত গুরুত্বপূর্ণ। এই গভীর ডাইভটি আলোকপাত করবে কিভাবে এই পদ্ধতিগুলি শুধুমাত্র শার্দিয়াম-এর প্রযুক্তিগত দক্ষতা বাড়ায় না বরং এর নেটওয়ার্ক, বিকাশকারী সম্প্রদায় এবং বৃহত্তর ইকোসিস্টেমকে উল্লেখযোগ্যভাবে প্রভাবিত করে।
**১. শার্দিয়াম নেটওয়ার্কের জন্য সুবিধা**
**🧑 উন্নত ডেভেলপারের অভিজ্ঞতা:** ইথেরিয়াম-এর মতো পদ্ধতি সহ আরও সম্পূর্ণ আরপিসি সার্ভার সামগ্রিক বিকাশকারীর অভিজ্ঞতাকে উন্নত করে, এটি শার্দিয়াম-এ তৈরি করা সহজ এবং আরও দক্ষ করে তোলে।
**📈 নেটওয়ার্কের বৃদ্ধি এবং গ্রহণ:** পরিচিতি এবং ব্যবহারের সহজতা ইথেরিয়াম ইকোসিস্টেম থেকে আরও বিকাশকারীদের আকৃষ্ট করতে পারে, যা শার্দিয়াম নেটওয়ার্কের বৃদ্ধি এবং বৈচিত্র্যে অবদান রাখে।
**🏎️ উন্নত পারফরম্যান্স:** আরপিসি পদ্ধতির একটি শক্তিশালী সেট সহ, শার্দিয়াম আরও দক্ষতার সাথে বিস্তৃত ক্যোয়ারী এবং কমান্ড পরিচালনা করতে পারে, যা উন্নত নেটওয়ার্ক কর্মক্ষমতার দিকে নিয়ে যায়।
**২. বিকাশকারীদের জন্য সুবিধা**
**🛠️ ট্রানজিশনের সহজতা:** ইথেরিয়াম-এর সাথে অভিজ্ঞ ডেভেলপাররা সহজেই শার্দিয়াম-এ ট্রানজিশন করতে পারে, তাদের বিদ্যমান জ্ঞান এবং টুলস ব্যবহার করে।
**🔧 সমৃদ্ধ টুলিং এবং ইন্টিগ্রেশন:** আরপিসি পদ্ধতির একটি বিস্তৃত সেটে অ্যাক্সেস অত্যাধুনিক অ্যাপ্লিকেশন তৈরি করতে এবং বিদ্যমান ইথেরিয়াম-ভিত্তিক সরঞ্জামগুলির সাথে বিরামহীন একীকরণের অনুমতি দেয়।
**💡 উদ্ভাবনী সুযোগ:** শার্দিয়াম-এর আরপিসি পদ্ধতিতে অনন্য অভিযোজন ডেভেলপারদের নতুন কার্যকারিতা এবং উদ্ভাবন অন্বেষণ করার সুযোগ দেয় যা ইথেরিয়াম নেটওয়ার্কে সম্ভব নয়।
**৩. সম্প্রদায়ের জন্য সুবিধা**
**🌱 বৃহত্তর ইকোসিস্টেম ডেভেলপমেন্ট:** যত বেশি ডেভেলপার শার্দিয়াম নেটওয়ার্কে যোগ দেয়, ইকোসিস্টেম আরও সমৃদ্ধ হয়, সম্প্রদায়ের কাছে আরও বৈচিত্র্যময় এবং পরিশীলিত অ্যাপ্লিকেশন অফার করে।
**🛡️ উন্নত নেটওয়ার্ক নিরাপত্তা এবং অখণ্ডতা:** _eth_chainId_-এর মতো পদ্ধতির মাধ্যমে, শার্দিয়াম নিরাপদ এবং নির্ভরযোগ্য লেনদেন নিশ্চিত করে, সম্প্রদায়ের মধ্যে আস্থা বৃদ্ধি করে।
📊 রিয়েল-টাইম অন্তর্দৃষ্টি এবং বিশ্লেষণ: পদ্ধতিগুলি যেমন _eth_feeHistory_ এবং _eth_getBlockReceipts_ সম্প্রদায়কে নেটওয়ার্ক কার্যকলাপের মূল্যবান অন্তর্দৃষ্টি প্রদান করে, স্বচ্ছতা বৃদ্ধি করে এবং সিদ্ধান্ত গ্রহণকে অবহিত করে৷
উপসংহারে, শার্দিয়াম-এ ইথেরিয়াম জেসন-আরপিসি পদ্ধতির একীকরণ বৃহত্তর ওয়েব৩ সম্প্রদায়ের মধ্যে সামঞ্জস্য, বর্ধিত কার্যকারিতা এবং বৃহত্তর আবেদনের দিকে একটি কৌশলগত পদক্ষেপের প্রতিনিধিত্ব করে। এটি একটি প্রাণবন্ত ইকোসিস্টেমের ভিত্তি স্থাপন করে যা উদ্ভাবনী এবং অ্যাক্সেসযোগ্য উভয়ই, নেটওয়ার্ক, এর বিকাশকারী এবং বৃহত্তর সম্প্রদায়কে উপকৃত করে।
## এটি মোড়ানো: টেকঅ্যাওয়ে
সংক্ষেপে, ইভিএম আরপিসি পদ্ধতি বাস্তবায়নে শার্ডিয়ামের সাম্প্রতিক কৃতিত্ব আমাদের নেটওয়ার্কের বিবর্তনে একটি গুরুত্বপূর্ণ অগ্রগতি চিহ্নিত করে। এটি আমাদের সক্ষমতা বাড়ায় এবং নিশ্চিত করে যে শার্ডিয়াম উদ্ভাবনের অগ্রভাগে থাকে। এই আপডেটটি শুধুমাত্র আমাদের সিস্টেমকে অপ্টিমাইজ করে না বরং বৃহত্তর ওয়েব৩ বিশ্বে অত্যাধুনিক সমাধান প্রদানের জন্য আমাদের অটল প্রতিশ্রুতিও নির্দেশ করে!
শারদীয়রা, আসুন একসাথে এই মাইলফলক উদযাপন করি! 🎉 আপনার আবেগ এবং সমর্থন শার্দিয়ামের ক্রমবর্ধমান সাফল্যের মূল ভিত্তি। আমাদের সম্মিলিত যাত্রায় আরও অনেক মাইলফলক এবং অব্যাহত অগ্রগতি এখানে!
**@shardeum #ShardeumIsBorderless**
| shafiqulmridha | |
1,799,458 | Brushers Chimneys | https://www.brusherschimneys.com/chimney-rain-cap-installation-in-houston-tx/ | 0 | 2024-03-23T14:40:00 | https://dev.to/brusherschimneys/brushers-chimneys-1293 | [https://www.brusherschimneys.com/chimney-rain-cap-installation-in-houston-tx/](https://www.brusherschimneys.com/chimney-rain-cap-installation-in-houston-tx/)
| brusherschimneys | |
1,799,481 | What is Selenium? Why do we use selenium for Automation? | Introduction to Selenium: Automation: Automation is a technology that is used to perform certain... | 0 | 2024-03-23T15:42:53 | https://dev.to/kpsshankar/what-is-selenium-why-do-we-use-selenium-for-automation-328k | Introduction to Selenium:
Automation:
Automation is a technology that is used to perform certain tasks with minimum or no human interactions or interference or efforts.
Selenium:
Selenium is an automation framework. It is an open source softwares (It is nothing but where the source code is distributed, making it available for using, modifying or distributing with it original rights. And it does not require any license to download or use it.)
It was created by Jasson Huggins in 2004. It was written in pure Java.
Selenium can be used with various other programming languages like Python, JavaScript, C#, Java, PHP and so on.
With selenium we can validate or verify the web applications.
Selenium is predominantly used in Automation Testing
Advantages of Selenium:
It is a open source framework
It can work with multiple operating systems like Windows, Mac, Linux / Unix
It works with different and multiple web browsers like Microsoft Edge, Chrome, Firefox, Safari, Opera etc.
You can integrate with any other testing framework like Pytest, Python Behave and so on along with Selenium
It uses less CPU and RAM during its working.
Disadvantages of Selenium:
It supports only web-based applications
You need to have a knowledge of Selenium to work with it as you need to know Python / Any programming language and the framework well. (The learning curve is hard)
You cannot automate CAPTCHA and SMS based OTP verification.
It has a small community so it lacks proper online support and due to this you need to put a lot of efforts to finding the solution to your problem
The program writing time is high.
Selenium Architecture
The architecture of Selenium is composed of:
Selenium IDE
IDE - Integrated Development Environment
It is just a web-browser extension that you need to download and install the extension for that particular web browser and start working with it.
One of the major advantages of using Selenium IDE is that it can automate and record the entire automation process as well
People generally do not use IDE, they rather prefer selenium scripts in order to do the same job.
Selenium Remote Control
It is an outdated and deprecated technology. We do not use it these days.
It has been replaced with WebDriver which is far more better and easy to use.
Selenium WebDriver:
It is the most important and major component of selenium architecture.
It provides a programming interface between the language and the web-browser.
It is composed of:
Selenium Client Library:
It consists of language bindings or commands which you will be using to write in your automation scripts.
They are compatible with W3C protocols like HTTP, HTTPS, TCP, UDP etc
They are the wrappers which send the script commands to the network, for the execution into the web-browser.
Selenium API
It contains a set of rules and regulation which your Programming language (Python) used to communicate with the Selenium
It helps in automation without the need for the user to understand what is happening in the background.
JSON wire protocol
The commands that you write are converted into JSON which is then transmitted across the network or to your web-browser so that it can be executed.
The JSON data are sent to the client using the HTTP protocol
It is used by the browsers also
Browser Drivers
It acts as a bridge between the Selenium Script, Libraries and the browser.
It helps us to run the selenium commands on the web browser.
https://github.com/mozilla/geckodriver/releases/tag/v0.34.0
https://googlechromelabs.github.io/chrome-for-testing/
https://developer.microsoft.com/en-us/microsoft-edge/tools/webdriver/?form=MA13LH
Browser:
All the web browser.
Selenium Grid:
It is used to run parallel test on multiple devices running same or different browsers and we could also simulate at different geographical locations.
We can run multiple test-cases simultaneously at the same time.
It uses the master-slave architecture.
PyCharm:
It is a popular IDE for python
https://www.jetbrains.com/pycharm/download/?section=windows
Commands to install selenium and webdriver-manager:
pip install selenium
pip install webdriver-manager
XPATH in Selenium:
XPATH is a selenium technique that is used to navigate through HTML Structure of a webpage. It is a syntax that allows us to find elements on a webpage using XML Path expression.
Syntax of XPath:
Xpath = //tagname[@attribute = ‘value’]
Types of XPath:
Absolute XPath:
Absolute Xpath refers to the direct way of finding an element. The major drawback of Absolute XPATH is that if there are any changes in the element’s path, then the XPATH will fail.
It starts from the <html> tag.
It always begins with the single forward slash (/)
Syntax of the Absolute XPath will look like:
/html/body/header/nav/div/div/div[2]/div[1]/ul/li[2]/a
Relative XPath:
In case of relative xpath, the path begins from the middle of the HTML DOM structure. Here, the syntax starts with the double forward-slash (//) that states that the element can be searched anywhere on the webpage.
It helps us to avoid to write a long XPATH.
Syntax:
Xpath = //input[@id=”fname”]
Xpath = //*[@id="navbarDropdown"]/text
Functions in XPATH:
contains():
The xpath contains() is used if part of the value of any attribute changes dynamically. The function can navigate to the web elements with the partial text present.
//tag_name[contains(@attribute, ‘value of the attribute’)]
text():
This function is used to locate the element on a web page using the web element’s text value. This is mainly used for elements that contains text like p, a, label etc.
//tag_name[text() = “Text of the element”]
start-with()
This function is used to find the element in which the attribute value starts with some specific character or a sequence of characters. This once again can be useful in dynamic web pages.
//tagname[starts-with(@attribute, ‘first_part_of_the_attribute_value’)]
| kpsshankar | |
1,799,618 | The Evolution of Fashion From Tradition to Innovation | Fashion is a dynamic and ever-evolving industry that reflects the cultural, social, and technological... | 0 | 2024-03-23T16:36:23 | https://dev.to/pakshi180/the-evolution-of-fashion-from-tradition-to-innovation-184b | fashion, clothing, revenge, hoodie | Fashion is a dynamic and ever-evolving industry that reflects the cultural, social, and technological changes of society. From ancient civilizations to modern-day runways, fashion has undergone a remarkable transformation, influenced by historical events, cultural movements, and technological advancements. In this exploration, we delve into the evolution of fashion, tracing its journey from traditional roots to the forefront of innovation and creativity.
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**1. The Origins of Fashion: **
Fashion has its roots in ancient civilizations, where clothing served both practical and symbolic purposes. In ancient Egypt, for example, clothing was a reflection of social status and identity, with elaborate garments worn by royalty and simple linen tunics worn by commoners. Similarly, in ancient Greece and Rome, clothing was a signifier of wealth and class, with draped garments and intricate accessories worn by the elite.
**2. The Influence of Historical Events:**
Throughout history, major events and movements have shaped the course of fashion. The Industrial Revolution, for example, brought about significant changes in clothing production, with the introduction of mechanized textile mills and mass production techniques. This led to the rise of ready-to-wear clothing and the democratization of fashion, making stylish garments more accessible to the masses.
**3. Cultural Movements and Fashion Trends:**
Cultural movements and subcultures have played a significant role in shaping fashion trends and styles. From the roaring twenties and the flapper fashion of the Jazz Age to the countercultural movements of the 1960s and 70s, fashion has been a reflection of social change and rebellion. Today, streetwear, hip-hop fashion, and gender-neutral clothing are examples of how fashion continues to evolve in response to shifting cultural norms and values.
**4. Technological Innovations in Fashion:**
Advancements in technology have revolutionized every aspect of the fashion industry, from design and production to marketing and retail. The advent of digital design tools, 3D printing, and virtual reality has transformed the way designers create and visualize their collections. Similarly, e-commerce platforms and social media have revolutionized the way fashion is marketed and consumed, allowing brands to reach a global audience with unprecedented speed and efficiency.
**5. Sustainability and Ethical Fashion:**
In recent years, there has been a growing movement towards sustainability and ethical fashion, driven by concerns about environmental degradation and social responsibility. Fashion brands are increasingly adopting eco-friendly materials, ethical production practices, and transparent supply chains to minimize their impact on the planet and improve working conditions for garment workers. This shift towards sustainability reflects a broader awareness of the need for responsible consumption and production in the fashion industry.
**Conclusion:**
The evolution of fashion is a testament to the creativity, innovation, and adaptability of humanity. From its humble beginnings in ancient civilizations to its current status as a global industry worth billions of dollars, fashion continues to evolve and reinvent itself in response to changing tastes, technologies, and societal values. As we look to the future, it is clear that fashion will continue to push the boundaries of creativity and innovation, shaping the way we dress and express ourselves for generations to come.
Visit: [https://officialrevengeclothing.com/](https://officialrevengeclothing.com/) | pakshi180 |
1,799,658 | Efficient Cluster Management with Kubernetes’ Hierarchical Namespaces | By Rajesh Gheware In the ever-evolving landscape of cloud computing, Kubernetes has... | 0 | 2024-03-23T18:00:46 | https://dev.to/rajeshgheware/efficient-cluster-management-with-kubernetes-hierarchical-namespaces-3e3g | kubernetes, namespaces | ## By Rajesh Gheware
In the ever-evolving landscape of cloud computing, Kubernetes has emerged as a de facto standard for orchestrating containerized applications. However, as Kubernetes clusters grow in complexity and size, managing resources and enforcing access policies across multiple teams can become increasingly challenging. This is where Hierarchical Namespaces (HNC) come into play, offering a new paradigm for efficient cluster management.
## The Genesis of Hierarchical Namespaces
Introduced in 2019, Hierarchical Namespaces are a Kubernetes feature developed under the SIG-Multi-tenancy working group. They allow for the creation of a hierarchy within a Kubernetes cluster, enabling a more granular and organized structure for managing resources, access controls, and configurations.
## Why Hierarchical Namespaces?
In traditional Kubernetes environments, namespaces are used as a method to divide cluster resources between multiple users or teams. However, as the number of namespaces grows, managing permissions, quotas, and configurations for each namespace can become cumbersome and error-prone. Hierarchical Namespaces address these challenges by allowing namespaces to inherit policies and configurations from their parent namespaces, thereby reducing redundancy and simplifying management tasks.
## Key Features of Hierarchical Namespaces
- **Inheritance:** Child namespaces inherit policies and configurations from their parent, ensuring consistent enforcement across the hierarchy.
- **Isolation:** Despite the inheritance, namespaces remain isolated where needed, ensuring that resources and sensitive information are not inadvertently shared.
- **Simplicity:** Hierarchical Namespaces reduce the complexity of managing large numbers of namespaces, making it easier to apply changes across related namespaces.
## Setting Up Hierarchical Namespaces
To begin using Hierarchical Namespaces, you must first install the HNC controller on your Kubernetes cluster. This can be done using kubectl:
```shell
HNC_VERSION=v1.1.0
HNC_VARIANT=default
kubectl apply -f https://github.com/kubernetes-sigs/hierarchical-namespaces/releases/latest/download/hnc-manager.yaml
```
```shell
(
set -x; cd "$(mktemp -d)" &&
OS="$(uname | tr '[:upper:]' '[:lower:]')" &&
ARCH="$(uname -m | sed -e 's/x86_64/amd64/' -e 's/\(arm\)\(64\)\?.*/\1\2/' -e 's/aarch64$/arm64/')" &&
KREW="krew-${OS}_${ARCH}" &&
curl -fsSLO "https://github.com/kubernetes-sigs/krew/releases/latest/download/${KREW}.tar.gz" &&
tar zxvf "${KREW}.tar.gz" &&
./"${KREW}" install krew
)
set -gx PATH $PATH $HOME/.krew/bin
kubectl krew update && kubectl krew install hns
```
Once the HNC controller is installed, you can start creating hierarchical namespaces. For example, to create a parent namespace called `production` and a child namespace called `app1`:
```shell
kubectl hns create app1 -n production
```
This command creates the `app1` namespace and sets `production` as its parent, inheriting any policies or configurations applied to `production`.
## Practical Use Cases
### Multi-Team Environments
In a scenario where multiple teams share a Kubernetes cluster, Hierarchical Namespaces can be used to efficiently manage access and resource quotas. By creating a parent namespace for each team and child namespaces for each project, teams can inherit common policies while maintaining the flexibility to customize as needed.
### Staging and Production Environments
Hierarchical Namespaces can simplify the management of staging and production environments. By setting a common parent for both environments, shared configurations such as network policies or role bindings can be inherited, ensuring consistency while allowing for environment-specific customizations.
## Best Practices
- **Plan Your Hierarchy:** Carefully design your namespace hierarchy to reflect your organizational structure and operational requirements.
- **Use RBAC Effectively:** Utilize Kubernetes' Role-Based Access Control (RBAC) in conjunction with Hierarchical Namespaces to finely control access and permissions.
- **Monitor and Audit:** Regularly monitor and audit your namespace configurations and hierarchies to ensure they meet your security and operational standards.
## Conclusion
Hierarchical Namespaces represent a significant advancement in Kubernetes cluster management, offering a structured and efficient way to manage resources, permissions, and configurations across multiple namespaces. By leveraging the inherent flexibility and power of Kubernetes in conjunction with Hierarchical Namespaces, organizations can achieve more streamlined and secure cluster management, paving the way for more scalable and maintainable cloud-native architectures.
As Kubernetes continues to evolve, it's crucial for cloud architects, DevOps engineers, and IT leaders to stay abreast of these developments. Hierarchical Namespaces are just one example of how Kubernetes is adapting to meet the complex needs of modern cloud environments. By embracing these innovations, we can ensure that our clusters remain manageable, secure, and aligned with our business objectives.
Remember, the journey to efficient cluster management is ongoing. As you explore Hierarchical Namespaces, keep experimenting, stay informed, and continuously refine your approach to harness the full potential of Kubernetes.
---
Engage with this article, share your thoughts and experiences with Hierarchical Namespaces, and let's continue to drive innovation in cloud computing together. For more insights into Kubernetes, cloud architecture, and the future of technology, follow me and join the conversation on LinkedIn.
| rajeshgheware |
1,799,990 | site:Extracting Main Domains Without Subdomains in Google Search | Title: Navigating Search Results: Extracting Main Domains Without Subdomains Introduction: In the... | 0 | 2024-03-24T08:13:09 | https://www.sh20raj.com/sh20raj/siteextracting-main-domains-without-subdomains-in-google-search-4c9p | abotwrotethis | **Title: Navigating Search Results: Extracting Main Domains Without Subdomains**
**Introduction:**
In the vast landscape of the internet, refining search queries to extract results solely from main domains can be instrumental in finding precise and relevant information. Websites often have various subdomains, each serving specific purposes within the site's structure. However, when users are interested in content from the primary domain only, the presence of subdomains can clutter search results. In this article, we explore a powerful search technique using the "site" operator to exclude subdomains, allowing users to focus exclusively on main domain content.
**Understanding Subdomains and Main Domains:**
Before diving into the search technique, it's essential to differentiate between subdomains and main domains. A main domain, such as "example.com," serves as the primary web address for a website. Subdomains, denoted by prefixes like "subdomain.example.com," are extensions of the main domain and often host specific sections or services within the site.
**Challenges with Subdomains in Searches:**
When users seek information from the main domain alone, the presence of subdomains can complicate the process. Search engines typically treat subdomains as separate entities, potentially diluting the search results with irrelevant content from these subdomains. This can be particularly frustrating when users are interested in content exclusively from the main domain.
**The Power of the "Site" Operator:**
The "site" operator is a valuable tool for refining search results to specific domains. By using "site:example.com," users can focus their search on the main domain "example.com." To exclude subdomains from search results, the following technique can be employed:
```plaintext
site:example.com -site:*.example.com
```
**How It Works:**
1. **site:example.com:** This part of the query tells the search engine to include results only from the main domain "example.com."
2. **-site:*.example.com:** The minus ("-") sign, followed by "site:*.example.com," instructs the search engine to exclude all subdomains of "example.com" from the results.
**Benefits of Using the Technique:**
- **Precision:** Users can pinpoint content from the main domain with precision, eliminating clutter from subdomains.
- **Relevance:** Search results are directly related to the primary website, ensuring they are pertinent to the user's query.
- **Efficiency:** The technique saves time by presenting focused results, avoiding the need to sift through unrelated subdomain content.
**Practical Applications:**
- **Research:** Researchers can use this technique to access scholarly articles, reports, or studies specifically from the main domain of a research institution or journal.
- **E-commerce:** Shoppers seeking products or services from a particular website's main domain can use this method to avoid distractions from subdomains.
- **News:** Journalists or news enthusiasts can focus on news articles from the main domain of a reputable news organization without being inundated by content from various subdomains.
**Conclusion:**
Refining search queries to extract main domain content while excluding subdomains is a powerful technique for obtaining precise and relevant search results. By utilizing the "site" operator in conjunction with the exclusion of subdomains, users can navigate search engines with greater accuracy, accessing the information they need from the primary domains of websites. This technique enhances efficiency, relevance, and clarity in search results, providing users with a streamlined and focused search experience. | sh20raj |
1,800,006 | Understanding Security Group and Network Access Control List (NACL) in AWS | AWS provides robust security measures to protect resources within its cloud infrastructure. Two... | 0 | 2024-03-24T09:26:49 | https://dev.to/aws-builders/understanding-security-group-and-network-access-control-list-nacl-in-aws-38ei | security, aws, network, devops | AWS provides robust security measures to protect resources within its cloud infrastructure. Two fundamental components of AWS security are Security Groups and Network Access Control Lists (NACLs). While both serve similar purposes – controlling traffic to and from AWS resources – they operate at different layers of the network stack and offer distinct features.
{% embed https://www.youtube.com/watch?v=r99PVi4Tujk %}
### Security Groups
Security Groups act as virtual firewalls for EC2 instances and other AWS resources. They regulate inbound and outbound traffic by defining rules that specify which type of traffic is allowed or denied. Here are some key points about Security Groups:
1. Security Groups operate at the instance level and are stateful, meaning if you allow inbound traffic, the return traffic is automatically allowed regardless of outbound rules. This simplifies the management of security policies.
2. You define inbound and outbound rules to permit specific types of traffic. For example, you can allow SSH (port 22) for administration or HTTP (port 80) for web traffic. If a rule doesn't explicitly allow traffic, it's implicitly denied.
3. Security Groups are easy to configure through the AWS Management Console, CLI, or SDKs. You can modify rules dynamically without restarting instances.
4. A single Security Group can be attached to multiple instances, enabling consistent security policies across resources.
### Network Access Control Lists (NACLs)
NACLs are another layer of defense for controlling traffic at the subnet level. Unlike Security Groups, which operate at the instance level, NACLs function at the subnet level. Here's what you need to know about NACLs:
1. Unlike Security Groups, NACLs are stateless. This means that if you allow inbound traffic, you must explicitly allow the corresponding outbound traffic and vice versa.
2. NACLs have numbered rules that are evaluated in ascending order. Once a rule is matched, subsequent rules are not processed. This order matters when defining complex access control policies.
3. NACLs support both allow and deny rules. However, the order of rules and the stateless nature of NACLs make it essential to carefully plan and configure rules.
4. NACLs are associated with subnets, allowing you to control traffic entering and leaving the subnet. Each subnet in a VPC must be associated with a NACL, and by default, it allows all traffic.
---
### Best Practices
To effectively secure your AWS infrastructure using Security Groups and NACLs, consider the following best practices:
1. *Follow the principle of least privilege by only permitting necessary traffic. Restrict access to ports and protocols that are required for the application to function.
2. Implement multiple layers of security using both Security Groups and NACLs. While Security Groups provide instance-level security, NACLs offer subnet-level control, adding an extra layer of defense.
3. Regularly review and audit your security rules to ensure they align with your organization's security policies. Remove any unnecessary rules or overly permissive configurations.
4. Utilize AWS APIs, CLI, or Infrastructure as Code (IaC) tools like AWS CloudFormation or Terraform to automate the configuration and management of Security Groups and NACLs, ensuring consistency and scalability.
-----
### Summary
In conclusion, Security Groups and Network Access Control Lists are essential components of AWS security, offering different levels of control over inbound and outbound traffic within your VPC. By understanding their differences and best practices, you can effectively secure your AWS resources and protect them from unauthorized access and malicious activity.
You can see a video tutorial about NACL and SG describing the strengths, weaknesses, usage example, and a hands-on demo showing how you can create a NACL and SG and even more - [YouTube video](https://youtu.be/r99PVi4Tujk?feature=shared)
{% embed https://youtu.be/r99PVi4Tujk?feature=shared %}
Related articles on my [blog https://lepczynski.it/en/aws_en/a-comparison-of-security-groups-and-network-access-control-lists-in-aws/](https://lepczynski.it/en/aws_en/a-comparison-of-security-groups-and-network-access-control-lists-in-aws/):
{% embed https://lepczynski.it/en/aws_en/a-comparison-of-security-groups-and-network-access-control-lists-in-aws/ %} | wlepczynski |
1,800,008 | The AI Toolbox: Everything You Need in One Place | Introduction Hello! We all know that there's 'tons' of new AI tools launching everyday for... | 0 | 2024-03-24T11:12:31 | https://span41n.vercel.app/posts/the-ai-toolbox | ai, resources, discuss, tools | ## Introduction
Hello! We all know that there's 'tons' of new AI tools launching everyday for every use-case we can ever imagine. Ranging from text-generation to text to image and coding!
It can be really difficult to always keep up with the new launches and know about them. This is where [theresanaiforthat](https://theresanaiforthat.com/) comes in.
## What is this website?
Its pretty obvious to ask this question... So, as the name roughly suggests that it is a website which provides us with AI tool for various use cases, and really it does. **theresanaiforthat** is a website with collection of various online AI tools and chatbots for a number of use cases in one place!
Basically, **theresanaiforthat** offers a diverse set of online AI tools and chatbots for a wide range of applications. Whether searching for specific tools or simply browsing, users can easily find relevant options. A search on the website yields a detailed list of AI solutions tailored to individual needs, including pricing, popularity metrics, and direct access links.
Not only this, but also it provides the tool's **Overview, User's reviews, Pros and Cons, Alternatives, Q&As and other suggested tools.** With these features it becomes very easy for anyone to decide which AI tool to use.
## Conclusion
By offering this much of useful information in one convenient location, theresanaiforthat.com simplifies the process of discovering, evaluating, and selecting the most suitable AI tools for one's specific requirements.
Overall, using this website makes your search for different AI tools a lot easier.
**_Thank you for reading!_** | sehgalspandan |
1,800,030 | Design Patterns (Creational) | Introduction In the fifth post of my blog, I will go over all the design patterns that can... | 0 | 2024-03-29T10:25:41 | https://dev.to/7jw92nvd1klaq1/design-pattern-part-1-3ohc | beginners, programming, webdev, designpatterns |
## Introduction
In the fifth post of my blog, I will go over all the design patterns that can be applied as solutions to various problems that we commonly face during the design process of the SW. The proper design of the SW is extremely crucial, for the fact that a poorly designed SW is an absolute nightmare to deal with as a developer and a customer. For developers, it can lead to issues of SW vulnerabilities, scalability, and the bad reputation of a company, and for customers, performance, UX, etc. What's a better way to mitigate those issues than to properly design the SW from scratch? By utilizing the well-known design strategies used by developers all across the programming industries, you can simply save others from having to spend an enormous amount of time fixing bugs and trying to make sense of the code you wrote, and ultimately make everyone who comes into contact with the SW happy. I am not trying to say that these are some sort of bulletproof, one-size-fits-all solutions that may completely eliminate all the problems that the SW may have later down the line; however, we can mitigate some of the unnecessary issues arising from haphazardly approaching the design process by incorporating the well-proven, brilliant techniques into the SW.
Prior to writing this, I have to remind you first that I do not have expertise in this domain of knowledge. The primary purpose of writing this post is to deepen my understanding of design patterns by writing about what I learn and know in order to improve my skill set as a programmer. If you see any errors or mistakes in my writing about pretty much anything you see, feel free to point them out by commenting below so that I can fix them!
## What are Design Patterns?
Since the inception of the very first computer, the ever-shifting landscape of the computing world has seen an incomprehensible amount of software that ultimately changed the history of mankind forever. The combination of physical components that together make up the backbone of what we know as the computer is basically nothing without the SW. For example, an operating system provides us various tools that enable us to gracefully and effectively control this marvel of the invention without having to directly communicate with various pieces of hardware. It also provides us with a virtual platform on which we run various pieces of application software that aid us in conveniently managing and solving our daily tasks. In fact, you are using an application called Web Browser on your smartphone or computer to read this very post right now to learn more about Design Pattern, and the very web browser you are using is made by a group of people intent on helping people connect to the ever-increasing world of the Internet.
Creating well-run, maintained software requires one to carefully plan everything from the start to make sure that it has a good foundational background from which things can flourish. Unfortunately, people who came to invent the SW at the outset of the computing world did not have the luxury of developing the SW with such knowledge. Since it was something that was so new, they had to pave ways for us to get to where we are today by experimenting and trying various things that gave birth to brilliant solutions that we resort to to this day, but it was not expected to be without issues. Without all the tools and methodologies at their disposal, creating the SW was not really efficient and structured. Some of the problems they faced included failing to meet the requirements, being overdue, budgeting, etc. Recognizing the need to address those issues, people decided to come up with the discipline of **SW Engineering** which focused on processes, methodologies, and guidelines to develop the SW as efficiently and methodically as possible.
Design patterns aim to make the design process of the software's development much more pleasant and, most importantly, efficient. During the design process, we often come across instances where we may have no idea how to come up with fundamentally sound solutions to mitigate the unforeseen issues that can arise in the future. **Design patterns provide you with a set of ideas or guidelines on how to think about approaching the issues from a high-level view.** I would like to think of it as the template from which we can standardize approaches to coming up with robust solutions to all the recurring problems we often face. It does not necessarily give you a set of concrete solutions that may be incorporated right into the SW or encompasses only a few handfuls of situations to which design patterns could be applied, but sort of guides you towards where you may find the solutions. **Why racking your brains trying to reinvent the wheel when you can simply resort to the proven-to-work guidance from the brilliance of those that came before us on the implementation of the SW?** You also get to reap the benefits of efficiency, scalability, flexibility, etc.!
Currently, there are about 22 design patterns that are well-used to this day and are grouped into three different types: **Creational, structural, and behavioral.** Each category aims to address different types of problems, and their names simply give away which to use for the types of problems you are trying to resolve. **Creational Patterns** deal with the creation of objects. **Structural patterns** deal with merging two or more objects into compositional structures. **Behavioral patterns** streamline communication and delegate various responsibilities to objects in situations. As the first part of the series, I am going to cover creational patterns first—their definition, description, and how we may apply each pattern to instances that we may encounter in the future—and structural patterns and behavioral patterns subsequently.
## Creational Patterns
**Click patterns below to navigate**
1. **[Factory Method](https://dev.to/7jw92nvd1klaq1/design-pattern-part-1-3ohc#factory-method)**
2. **[Abstract Factory](https://dev.to/7jw92nvd1klaq1/design-pattern-part-1-3ohc#abstract-factory)**
3. **[Builder](https://dev.to/7jw92nvd1klaq1/design-pattern-part-1-3ohc#builder)**
4. **[Prototype](https://dev.to/7jw92nvd1klaq1/design-pattern-part-1-3ohc#prototype)**
5. **[Singleton](https://dev.to/7jw92nvd1klaq1/design-pattern-part-1-3ohc#singleton)**
### My Definition
As the name suggests, Creational Patterns mainly deal with creating objects. Here are some of the concepts that you will often encounter while going through each pattern:
- Abstraction
- Reusability
#### Abstraction
While going through and researching various aspects of each pattern of this category, I noticed that some of the patterns use some sort of an abstract class that is used to create other subclasses. I guess, since Design Patterns are for OOP in general, any concept related to OOP is often utilized. So how does an abstract class give you an advantage? One of the biggest advantages you can have from this is that you can simply add new subclasses, without having to introduce the new code to many different parts of the system. Here is an example: let's say you are creating an application for reading the documents of various types. Regardless of the type of document, you can assume that they all share the following functionalities: you must be able to open, write, save and close. Let's say that you decide to create a function for creating a document. Instead of having to create functions for opening each type of document tediously, you can simply create a function that accepts any object that inherits the abstract class, and invoke "open()" of its abstract class. Since you can add more concrete classes that represent the new types of document, from now on, as a result, your system your system becomes more flexible!
#### Economical
Some of the Creational Patterns we are going to delve into put a huge emphasis on the economical use of the objects. What I mean by economical is that it aims to reduce the unnecessary creation and use of the objects. One of the examples would be a pattern called **Singleton**, which ensures that there is one object of a specific class that is created and gets shared by other objects. There is also a pattern called **Prototype**, which deals with cloning an object, entirely avoiding the process of generating a new object - sometimes, it's just more time-consuming to generate a new object from the direct instantiation of an object than to clone an object that already exists in the memory. We will go deeper into those patterns mentioned above, so make sure to read it until the end!
### Factory Method
The Factory Method is a design pattern that emphasizes using an abstract Factory class to provide an interface for creating an object, with its concrete subclasses determining the type of object to create. Let's delve into this pattern with a simple example:
#### Example
- **Scenario**: Your business has a Payment Processor class that initially accepts only credit cards as a valid payment method. However, as your business grows, there is a demand to also accept PayPal as a payment method. Since your existing Payment Processor class is strictly for accepting credit cards, you would need to create a separate Payment Processor class for PayPal. While creating a separate Payment Processor class for each payment method might not always be overly complicated, in a large system, this approach could require various parts of the code to be updated to start accepting new payment methods.
- **Solution**: To resolve this issue, an abstract factory class can be used to provide interfaces for creating objects, although the actual object creation implementation may vary depending on its subclasses. This allows for having the client code that accepts any subclass of an abstract Factory class. The client code creates a specific payment method object, using the Factory object, and then processes a payment with it. Check out the code below or the **[GitHub link](https://github.com/7jw92nVd1kLaq1/designPatternsExamples/blob/main/CreationalPatterns/factory-method.js)** here
```
// Abstract class called PaymentMethod
class PaymentMethod {
constructor() {
if (this.constructor === PaymentMethod) {
throw new Error("Cannot instantiate abstract class!");
}
}
connectToGateway() {
throw new Error("This method must be overwritten!");
}
pay(amount) {
throw new Error("This method must be overwritten!");
}
}
// Concrete class called CreditCard
class CreditCard extends PaymentMethod {
#gateway;
constructor(cardNumber, cardHolder, expiryDate) {
super();
this.#gateway = this.connectToGateway(cardNumber, cardHolder, expiryDate);
}
connectToGateway(cardNumber, cardHolder, expiryDate) {
console.log('Connecting to payment gateway...');
}
pay(amount) {
console.log(`Paying $${amount} using Credit Card`);
}
}
// Concrete class called PayPal
class PayPal extends PaymentMethod {
#gateway;
constructor(email, password) {
super();
this.#gateway = this.connectToGateway(email, password);
}
connectToGateway(email, password) {
console.log('Connecting to payment gateway...');
}
pay(amount) {
console.log(`Paying $${amount} using PayPal`);
}
}
// Concrete class called BitPay
class BitPay extends PaymentMethod {
#gateway;
constructor(email, password) {
super();
this.#gateway = this.connectToGateway(email, password);
}
connectToGateway(email, password) {
console.log('Connecting to payment gateway...');
}
pay(amount) {
console.log(`Paying $${amount} using BitPay`);
}
}
// Abstract factory method to create payment methods
class PaymentMethodFactory {
constructor() {
if (this.constructor === PaymentMethodFactory) {
throw new Error("Cannot instantiate abstract class!");
}
}
createPaymentMethod() {
throw new Error("This method must be overwritten!");
}
}
// Concrete factory method to create CreditCard payment methods
class CreditCardPaymentMethodFactory extends PaymentMethodFactory {
#cardNumber;
#cardHolder;
#expiryDate;
constructor(cardNumber, cardHolder, expiryDate) {
super();
this.#cardNumber = cardNumber;
this.#cardHolder = cardHolder;
this.#expiryDate = expiryDate;
}
createPaymentMethod() {
return new CreditCard(this.#cardNumber, this.#cardHolder, this.#expiryDate);
}
}
// Concrete factory method to create PayPal payment methods
class PayPalPaymentMethodFactory extends PaymentMethodFactory {
#email;
#password;
constructor(email, password) {
super();
this.#email = email;
this.#password = password;
}
createPaymentMethod() {
return new PayPal(this.#email, this.#password);
}
}
// Concrete factory method to create BitPay payment methods
class BitPayPaymentMethodFactory extends PaymentMethodFactory {
#email;
#password;
constructor(email, password) {
super();
this.#email = email;
this.#password = password;
}
createPaymentMethod() {
return new BitPay(this.#email, this.#password);
}
}
// Class that will use the factory method to create payment methods
class PaymentProcessor {
#paymentMethodFactory;
#paymentMethod;
constructor(paymentMethodFactory) {
this.#paymentMethodFactory = paymentMethodFactory;
}
processPayment(amount) {
this.#paymentMethod = this.#paymentMethodFactory.createPaymentMethod();
this.#paymentMethod.pay(amount);
}
}
// Usage
const creditCardPaymentMethodFactory = new CreditCardPaymentMethodFactory('123123', 'John Doe', '12/23');
const paymentProcessor = new PaymentProcessor(creditCardPaymentMethodFactory);
paymentProcessor.processPayment(100);
```
In the example above, there are two abstract classes that essentially enable this pattern: **PaymentMethod** and **PaymentMethodFactory**. The **PaymentMethod** class represents an interface, with which the various types of payment method are implemented, and the **PaymentMethodFactory** class represents an abstract class, with which various subclasses are created depending on the types of objects they intend to generate.
- **PaymentMethod** class has one abstract function called "pay" that needs to be overridden by its subclasses. The reason why is that, regardless of the type of payment method you use, the only purpose of payment method is to allow users to pay for items with their choices of payment method. That means that every payment method should commonly share the function of "pay" a user may use to make a payment; however, the exact implementation of every subclass may vary. To allow the system to accept payments using credit cards, PayPal and BitPay(Cryptocurrency), the business decides to implement each payment method, creating a subclass inheriting the **PaymentMethod** class and uniquely implementing its own version of the function "pay."
- **PaymentMethodFactory** class, just like the **PaymentMethod** class, provides an interface for a subclass generating an object of a single type of payment method. Since each subclass that extends the **PaymentMethod** class is responsible for creating a single type of object, we can assume that we will have to create a subclass that extends the **PaymentMethodFactory** class for each payment method available. The only job that a Factory subclass performs is providing an interface for generating an object of a certain payment method. Every Factory subclass has to implement its own version of a function called "createPaymentMethod", because the way an object of each class gets generated may differ. In order to create an object of the class **CreditCard,** you have to provide the card number, name of the holder, and expiration date; however, in order to create an object of the class **PayPal,** all you have to provide is the credentials used to log in to one's PayPal account. Regardless, all we have to ensure is that it has to return an object of the **PaymentMethod** variant.
- Lastly, the instatiation of an object of **PaymentProcessor** class - we'll call this **client code** - requires any subclass that extends the **PaymentMethodFactory** Class. Inside the constructor function of **PaymentProcessor** class, you can see that it assigns the class you provide it with to the private variable called #paymentMethodFactory - In JavaScript, prepending a variable with "#" results in it becoming a private instance variable. Finally, when you invoke its function called "processPayment," it generates an object of a subclass extending the **PaymentMethod** class, by utilizing the Factory subclass you provided at the time of its instantiation, and proceeds to make a payment based on the argument you provide to the function.
#### When to Use This?
1. **When you do not have a clear idea of the types of object that could be created** - Considering the situation above, you can tell that the system may or may not be extended at some point, by providing more payment methods on demand; however, you have no idea exactly which payment methods will get implemented later down the line. I don't know about you, but for me, it feels a lot cleaner to have the function accept an object of any subclass extending the **PaymentMethodFactory** class.
2. **When you want to create an object inside the factory class** - Honestly, I had a hard time coming to terms with this statement, when I first learned about it - like why do you have to use a Factory method to generate an object when you can directly generate it without the Factory class outside the client code; however, when the creation of an object is often complex and requires some crazy preparation logic, then it is probably better for the system to delegate the responsibilities of creating an object to another class. Providing an Factory interface, whose sole responsiblity is generating an object, to the client code promotes decoupling and flexibility. Decoupling makes the system a lot modular.
3. **How about not altering the client code?** - Adding new classes by extending the abstract class, without altering the content of the client code whenever you introduce new payment method, the system becomes more flexible and maintainable!
[Back To List](https://dev.to/7jw92nvd1klaq1/design-pattern-part-1-3ohc#creational-patterns)
### Abstract Factory
Another pattern that involves the word **Factory** in its name, you can easily assume that it might work in a similar manner as its Factory Method counterpart; however, unlike Factory Method pattern, it can generate more than one type of object! **Abstract Factory is a creational design pattern that let you generate families of related objects without specifying their concrete classes.** Let's explore what it is all about, by going through the example below.
#### Example
- **Scenario**: You are a lazy developer that tries to develop the comprehensive system toolkit for the maintenance of various OS. The tookit has the following functionalities: Task Manager, Disk Manager, and Network Manager. Since every OS works differently, even though they work fundamentally similar, the implementation of the toolkit for each OS may differ from one another, and you initially think of creating a separate SW for each OS; however, you are too lazy for that approach and start thinking that it would be nice if you can just have one program completely compatible with the operating systems of many different types. Instead of having the toolkit working for just one specific OS, it would be neat if the program detects the type of OS, in which the program runs, and functions accordingly.
- **Solution**: Create an abstract class for each tool in the toolkit, and an abstract Factory class for generating those tools in the toolkit based on the type of OS, in which the toolkit runs. Since the toolkit you are trying to develop, regardless of the type of OS, should have the same functionalities as one another, you can simply create an abstract class for each functionality that is going to be integrated into the SW. For each OS, you can simply implement its own version of the functionality inheriting the abstract class. The abstract Factory class provides the interfaces for generating the tools included in the toolkit. For each OS, extend the abstract Factory class! Check out this **[GitHub link](https://github.com/7jw92nVd1kLaq1/designPatternsExamples/blob/main/CreationalPatterns/abstract-factory.js)** or the code below for clarification!
```
// Abstract class for creating a factory for various toolkits for various OS
class ToolkitFactory {
constructor() {
if (this.constructor === ToolkitFactory) {
throw new Error("Cannot instantiate abstract class!");
}
}
createTaskManager() {
throw new Error("This method must be overwritten!");
}
createDiskManager() {
throw new Error("This method must be overwritten!");
}
createNetworkManager() {
throw new Error("This method must be overwritten!");
}
}
// Concrete class for creating a factory for a Windows toolkit
class WindowsToolkitFactory extends ToolkitFactory {
createTaskManager() {
return new WindowsTaskManager();
}
createDiskManager() {
return new WindowsDiskManager();
}
createNetworkManager() {
return new WindowsNetworkManager();
}
}
// Concrete class for creating a factory for a Linux toolkit
class LinuxToolkitFactory extends ToolkitFactory {
createTaskManager() {
return new LinuxTaskManager();
}
createDiskManager() {
return new LinuxDiskManager();
}
createNetworkManager() {
return new LinuxNetworkManager();
}
}
// Abstract class for a TaskManager
class TaskManager {
constructor() {
if (this.constructor === TaskManager) {
throw new Error("Cannot instantiate abstract class!");
}
}
list() {
throw new Error("This method must be overwritten!");
}
start() {
throw new Error("This method must be overwritten!");
}
stop() {
throw new Error("This method must be overwritten!");
}
}
// Concrete class for a Windows TaskManager
class WindowsTaskManager extends TaskManager {
list() {
console.log("Listing Windows tasks...");
}
start() {
console.log("Starting Windows task...");
}
stop() {
console.log("Stopping Windows task...");
}
}
// Concrete class for a Linux
class LinuxTaskManager extends TaskManager {
list() {
console.log("Listing Linux tasks...");
}
start() {
console.log("Starting Linux task...");
}
stop() {
console.log("Stopping Linux task...");
}
}
// Abstract class for a DiskManager
class DiskManager {
constructor() {
if (this.constructor === DiskManager) {
throw new Error("Cannot instantiate abstract class!");
}
}
list() {
throw new Error("This method must be overwritten!");
}
format() {
throw new Error("This method must be overwritten!");
}
}
// Concrete class for a Windows DiskManager
class WindowsDiskManager extends DiskManager {
list() {
console.log("Listing Windows disks...");
}
format() {
console.log("Formatting Windows disk...");
}
}
// Concrete class for a Linux
class LinuxDiskManager extends DiskManager {
list() {
console.log("Listing Linux disks...");
}
format() {
console.log("Formatting Linux disk...");
}
}
// Abstract class for a NetworkManager
class NetworkManager {
constructor() {
if (this.constructor === NetworkManager) {
throw new Error("Cannot instantiate abstract class!");
}
}
list() {
throw new Error("This method must be overwritten!");
}
connect() {
throw new Error("This method must be overwritten!");
}
disconnect() {
throw new Error("This method must be overwritten!");
}
}
// Concrete class for a Windows NetworkManager
class WindowsNetworkManager extends NetworkManager {
list() {
console.log("Listing Windows networks...");
}
connect() {
console.log("Connecting to Windows network...");
}
disconnect() {
console.log("Disconnecting from Windows network...");
}
}
// Concrete class for a Linux
class LinuxNetworkManager extends NetworkManager {
list() {
console.log("Listing Linux networks...");
}
connect() {
console.log("Connecting to Linux network...");
}
disconnect() {
console.log("Disconnecting from Linux network...");
}
}
// Client code for returning the correct toolkit factory
function getToolkitFactory(os) {
if (os === 'Windows') {
return new WindowsToolkitFactory();
} else if (os === 'Linux') {
return new LinuxToolkitFactory();
} else {
throw new Error("Unsupported OS");
}
}
// Client code for using the toolkit factory
function useToolkit(toolkitFactory) {
const taskManager = toolkitFactory.createTaskManager();
const diskManager = toolkitFactory.createDiskManager();
const networkManager = toolkitFactory.createNetworkManager();
while (1) {
console.log('1. List tasks');
console.log('2. Start task');
console.log('3. Stop task');
console.log('4. List disks');
console.log('5. Format disk');
console.log('6. List networks');
console.log('7. Connect to network');
console.log('8. Disconnect from network');
console.log('9. Exit');
const choice = prompt('Enter your choice: ');
switch (choice) {
case '1':
taskManager.list();
break;
case '2':
taskManager.start();
break;
case '3':
taskManager.stop();
break;
case '4':
diskManager.list();
break;
case '5':
diskManager.format();
break;
case '6':
networkManager.list();
break;
case '7':
networkManager.connect();
break;
case '8':
networkManager.disconnect();
break;
case '9':
return;
default:
console.log('Invalid choice');
}
}
}
// Usage
const windowsToolkitFactory = getToolkitFactory('Windows');
useToolkit(windowsToolkitFactory);
```
In the example above, we see four abstract classes: **ToolkitFactory, NetworkManager, DiskManager, and TaskManager**.
- **ToolkitFactory** - Your goal is to create the toolkit for only two types of OS: Windows and Linux. Since the **ToolkitFactory** class provides the interface for generating the available tools whose name end with **Manager**, you can extend this class by creating a Factory subclass for each OS.
- **NetworkManager, DiskManager, and TaskManager** - The toolkit provides the functionalities for managing one's computer, but since it consists of many tools, whose implementation may vary depending on the OS, you simply extend them as well by creating a subclass for each class, and let the concrete Factory class instantiate an object using the subclass, just like how we did in the example of Factory Method pattern.
- The client code consists of two functions: one for generating the toolkit, and another for interacting with the toolkit. The function "getToolkitFactory" creates an object of a concrete Factory class based on the type of OS the program runs in. The function "useToolkit" accepts the Factory class as its argument, generates an object of each tool, and provides a prompt for a user to use the tools.
#### When to Use This?
1. **When you do not have a clear idea of which families of objects to create** - The only difference between this pattern and **Factory Method** pattern is that you can generate objects of more than one type. If you group the related items into several groups based on the families they belong to, then I guess you can use this pattern.
2. **Supporting multiple variants of products**: If you develop an application like above where you have to support multiple variants of products without knowing the specifics of each variant, then this pattern may be for you.
[Back To List](https://dev.to/7jw92nvd1klaq1/design-pattern-part-1-3ohc#creational-patterns)
### Builder
The Builder pattern is a creational design pattern that provides a flexible approach for constructing a complex object. In this pattern, the builder provides the interface for making a modification to an object it intends to generate, and the client code updates an object by invoking the functions of a builder class successively. The definition might be hard to understand unless you have a look at the example below:
#### Example
- **Scenario**: You are a developer tasked with creating a simple script for making an HTTP request to a server. There is a number of aspects that you have to consider when it comes to an HTTP request: you may include in an HTTP request various properties, such as URL, method, cookies, headers, etc. Here is a thing though: you do not always have to provide every one of those properties I mentioned above for each request. For example, if you are making a simple request for fetching information from a website that doesn't require a log-in, then you can simply provide "URL" and "method" parameter with arguments. Or let's say that you want to log in to the website, then the most common approach is to provide "POST" for the "method" parameter, login information for the "data" parameter, and an URL for the "URL" parameter. Every instance is different, and you should allow a user to configure it however you want based on one's circumstances.
- **Solution**: How about providing a class with various functions for configuring an object that you intend to generate. Invoking a function of the class alters a certain aspect of an object, and you can invoke or skip them based on your needs at any given point, providing you with flexibility. When you are finally done with the configuration of an object, you can simply return the object, by invoking a function called "build". Check out this **[GitHub link](https://github.com/7jw92nVd1kLaq1/designPatternsExamples/blob/main/CreationalPatterns/builder.js)** or the code below for clarification!
```
class HTTPRequest {
constructor() {
this.url = null;
this.method = 'GET'; // Default method
this.headers = {};
this.cookies = {};
this.data = null;
}
toString() {
return `HTTPRequest(${this.method} ${this.url}, Headers: ${JSON.stringify(this.headers)}, Cookies: ${JSON.stringify(this.cookies)}, Data: ${this.data})`;
}
send() {
console.log(`Sending request to ${this.url} using method ${this.method}`);
}
}
// Abstract class for a builder
class HTTPRequestBuilder {
constructor() {
if (this.constructor === HTTPRequestBuilder) {
throw new Error("Cannot instantiate abstract class!");
}
}
setURL(url) {
this.request.url = url;
return this;
}
setMethod(method) {
this.request.method = method;
return this;
}
setHeaders(headers) {
this.request.headers = headers;
return this;
}
setCookies(cookies) {
this.request.cookies = cookies;
return this;
}
setData(data) {
this.request.data = data;
return this;
}
build() {
return this.request;
}
}
// Concrete class for a GET request builder
class GetRequestBuilder extends HTTPRequestBuilder {
constructor() {
super();
this.request = new HTTPRequest();
this.request.method = 'GET';
}
}
// Concrete class for a POST request builder
class PostRequestBuilder extends HTTPRequestBuilder {
constructor() {
super();
this.request = new HTTPRequest();
this.request.method = 'POST';
}
}
// Director class to build requests (optional)
class RequestDirector {
constructor(builder) {
this.builder = builder;
}
construct(url, data = {}, headers = {}, cookies = {}) {
return this.builder
.setURL(url)
.setHeaders(headers)
.setCookies(cookies)
.setData(data)
.build();
}
}
// Usage
const director = new RequestDirector(new PostRequestBuilder());
// Prompts the user to enter data
const request = director.construct('http://example.com', { name: 'John Doe', age: 42 });
console.log(request.toString()); // HTTPRequest(POST http://example.com, Headers: {}, Cookies: {}, Data: {"name":"John Doe","age":42})
request.send(); // Sends the request to the server
```
- We have one abstract class called **HTTPRequestBuilder** which has various functions for altering a request object depending on the situational context. Its only responsibility is to provide the abstract interface for configuring an object flexibly. Each function it provides, except for the function "build", returns an object itself, which allows an object to chain itself, every time it modifies the request. Lastly, you invoke the function "build" to finally get the object of **HTTPRequest** that you modify.
- Using the **HTTPRequestBuilder** class, two concrete builder classes - **GetRequestBuilder and PostRequestBuilder** - are created. Usually in HTTP, you often differentiate the types of the requests based on their method - GET is often used to fetch the information, whereas POST is used for submitting information of a user, etc. At the time of instantiation, each concrete Builder class instantiates an object of **HTTPRequest** whose properties are going to be modified by the builder itself, and immediately assigns the method to it accordingly.
- The **RequestDirector** class is completely optional and performs the task of modifying the request to one's liking, by receiving an object of a concrete builder class and invoking its various functions.
#### When to Use This?
1. **When you have to provide a lot of different arguments to a class for the instantiation of an object** - A class having a large amount of parameters for generating an object is usually a bad programming approach, so one way to mitigate this is to provide a builder class that modifies gradually by invoking each function specific for altering only an aspect of an object.
2. **When there are multiple ways of instantiating an object** - I think, in Java and multiple programming languages - you can simply provide as many constructor functions as possible to provide as many different ways to create an object. But it may often look bad if you don't do it right, and I feel like an approach of builder class that promotes the gradual change of an object is suited for the readability of the code and the customization of an object.
[Back To List](https://dev.to/7jw92nvd1klaq1/design-pattern-part-1-3ohc#creational-patterns)
### Prototype
The Prototype pattern is a creational design pattern that lets you create objects without having to instantiate them using classes. It is often used when it takes a while to instantiate an object via a class, saving computing and temporal resources. Let's check out the example for understanding it better!
#### Example
- **Scenario**: You are developing a graphical video game and are tasked with creating an NPC that is going to be spawned in huge numbers. However, due to the way generating a character works, you find out that it takes quite a while to generate a single character using a standard approach of the instantiation of an NPC via a class, which makes it really inefficient and a waste of time.
- **Solution**: Eventually, you figure out the cause of the issue: the texture processing of an NPC. The process of loading the texture files of an NPC and applying them to a character proves to be really inefficient. What if you could just generate a single NPC and copy its processed texture to other NPCs by cloning it? Check out the excerpt of the code below or this **[GitHub link](https://github.com/7jw92nVd1kLaq1/designPatternsExamples/blob/main/CreationalPatterns/prototype.js)** for source code.
```
// Abstract class for a game NPC
class NPC {
constructor() {
if (this.constructor === NPC) {
throw new Error("Cannot instantiate abstract class!");
}
}
clone() {
throw new Error("This method must be overwritten!");
}
}
// Concrete class for a game NPC with a lot of properties, including textures
class Orc extends NPC {
#name;
#health;
#attack;
#defense;
#textures;
constructor(name, health, attack, defense, textures) {
super();
this.#name = name;
this.#health = health;
this.#attack = attack;
this.#defense = defense;
if (Array.isArray(textures))
this.loadTextures(textures);
else
this.#textures = textures;
}
processTextures(textures) {
console.log("Processing textures...");
return textures;
}
loadTextures(textures) {
console.log("Loading textures...");
this.#textures = this.processTextures(textures);
}
clone() {
const clone = structuredClone(this);
clone.#health = 100;
return clone;
}
}
// Usage
// Create an Orc NPC
const orc = new Orc("Orc", 100, 20, 10, ["orc.png", "orc.3d"]);
const orc2 = orc.clone();
```
- The abstract class called **NPC** is an abstract class providing the interface for implementing a class that represents a type of **NPC**. It has one function called "clone," and delegates the responsiblity of cloning to objects.
- The instantiation of an object of a concrete class called **Orc**, which is going to be one of the NPCs of the game, launches the initialization process that runs the complex code for loading and processing the texture files of the character for rendering it on the screen. Instead of generating a new object using the **Orc** class, you invoke the function "clone" of an already existing object and make a hard copy of it. That way, you simply bypass the process of loading and processing the texture files needed to render an NPC on the screen.
#### When to Use This?
1. **When instantiating an object is resource-intensive**: If instantiating an object is simply too inefficient, compared to that of cloning, then you know that this might be a better choice than creating it from scratch.
2. **Avoiding subclassing**: Apparently, subclassing excessively can make your code complex and hard to maintain in many situations. If you are in a situation where you have way too many subclasses, then it is probably better to clone an object than to follow a rigid class hierarchy. For example, In a graphics editing application, different shapes might share the same set of functions but differ in their properties, such as color, size, or position. Using the Prototype Pattern, you can clone a shape and adjust its properties, avoiding the need for a subclass for each shape variant.
[Back To List](https://dev.to/7jw92nvd1klaq1/design-pattern-part-1-3ohc#creational-patterns)
### Singleton
The Singleton pattern is a creational design pattern that emphasizes using one object for a class, providing a single access point for controlling an object. If you need only one object of a class for an application, then this may be what you need. Let's check out the example below to see how it may be used.
#### Example
- **Scenario**: You develop an online document-editing application with a functionality that allows multiple people to work on a single document simulataneously in real-time. Your job is to ensure that only one person modifies a document at a time, which essentially prevents others from doing so.
- **Solution**: Instead of making multiple copies of a document for each user in a session, you generate a single object representing a document, and let others take turns editing it. To allow a single user to edit a document while others wait, you may implement the lock feature that gives only one person access to the editing feature of the document; However, to prevent a person from locking a document indefinitely, you implement a timeout feature, which revokes one's access to a lock after a certain time. Check out this **[GitHub link](https://github.com/7jw92nVd1kLaq1/designPatternsExamples/blob/main/CreationalPatterns/singleton.js)** or the code below for clarification!
```
class Document {
static #lock = null;
static #content = {
title: "Document",
body: "This is a document",
footer: "End of document"
};
constructor() {
throw new Error("Cannot instantiate this class!");
}
static acquireLock(name) {
if (Document.#isLockExpired()) {
Document.releaseLock();
}
if (!Document.isLocked()) {
Document.#lock = {
name: name,
timestamp: Date.now()
};
} else {
throw new Error("Document is already locked!");
}
}
static releaseLock() {
Document.#lock = null;
}
static isLocked() {
return Boolean(Document.#lock);
}
static #isLockExpired() {
return Document.#lock && (Date.now() - Document.#lock.timestamp > 5000);
}
static modifyContent(key, content) {
if (!Document.isLocked() || Document.#lock.name !== key)
throw new Error("Document is locked or you do not hold the lock!");
Document.#content = content;
Document.releaseLock();
}
static getContent() {
return Document.#content;
}
}
// Usage
const key = 'John Doe';
Document.acquireLock(key);
console.log(Document.isLocked()); // true
console.log(Document.getContent());
Document.modifyContent(key, {
title: "New Document",
body: "This is a new document",
footer: "End of new document"
});
console.log(Document.getContent());
```
- In the example, there is a class called **Document**. The class cannot be instatiated, since it intends to provides a single access point for everyone that access the application.
- It has two static private variables: lock and content. The lock holds the key of a user and timestamp for recording when the lock was acquired by the user. Modifying the content of the **Document** class requires one to acquire a lock by invoking the static function called "acquireLock." The function essentially checks if the lock is already acquired by someone, and if it does, then determines if the lock is already expired or not. A user modifies the content of the **Document** class, by invoking the function "modifyContent", which accepts two arguments: key, content. A user provides its key that one uses to generate a lock, and the system verifies to make sure that the user is the one that has acquired the lock by comparing the user key to that of "lock" static variable. The **Document** class replaces its "content" static variable with what a user provides, and lastly, releases a lock, which allows others to acquire it for modifying the Document.
#### When to Use This?
1. **When you have to manage a shared resource**: I feel like this is often used in a situation where various objects need to share a single object. Sharing a configuration object, a connection to DB, and such come to mind.
2. **Controlled access and modification** - When you have to make sure that only one person may modify the content and such at a time, like in the example above, then you should consider appplying this pattern to the application, to prevent concurrent modifications.
[Back To List](https://dev.to/7jw92nvd1klaq1/design-pattern-part-1-3ohc#creational-patterns)
## Summary
For this blog post, we went over the Design Patterns: why they matter, the types of patterns, and most importantly, the patterns of the Creational variant. Emphasizing the economical and inheritable approaches, the creational design patterns provide the effective ways of creating objects. **Factory Method** pattern provides an interface for creating an object of a certain type. **Abstract Factory** pattern provides an interface for creating the objects of families. **Builder** pattern provides an interface for creating a complex object flexibly. **Prototype** pattern provides you a efficient way of creating an object with the concept of cloning. **Singleton** pattern utilizes a single access point to resource, providing a way to share resource concurrently while preventing race conditions. They are all well effective in decoupling the system, making it more modular and manageable! For the next blog, I will go over the rest of the Structural Patterns. Thank you for reading this long post!
| 7jw92nvd1klaq1 |
1,800,066 | CSS Burger Delight | This is a submission for DEV Challenge v24.03.20, CSS Art: Favorite Snack. ... | 0 | 2024-03-24T12:14:21 | https://dev.to/sushcod3/css-burger-delight-4k3n | frontendchallenge, devchallenge, css | _This is a submission for DEV Challenge v24.03.20, CSS Art: Favorite Snack._
## Inspiration
The inspiration for this CSS art piece comes from the classic burger.
## Demo
[View Public Code](https://github.com/SushCod3/css-burger-delight)
## Journey
During the development of CSS Burger Delight, I encountered and learned the following key lessons:
1. **Creating Shadow Effects**: Utilizing `box-shadow` to generate shadow effects inside an element.
2. **Texture Creation**: Employing CSS gradients to create texture for objects, enhancing the realism of the burger.
## License
This project is licensed under the [MIT License](https://github.com/SushCod3/css-burger-delight?tab=MIT-1-ov-file#readme). | sushcod3 |
1,800,182 | Minutes Per Pound Calculator | Are you trying to cook dinner a delicious ham but unsure about the cooking time? Well, worry no... | 0 | 2024-03-24T15:50:17 | https://dev.to/gregory7712/minutes-per-pound-calculator-2ifd | Are you trying to cook dinner a delicious ham but unsure about the cooking time? Well, worry no extra. A [15 Minutes Per Pound Calculator](https://calculatoracute.com/shift-share-analysis-calculator/) is here to rescue you.
This Cooking time calculator helps you figure out exactly how long you want to cook your ham based totally on its weight and the way executed you need it to be. It’s super clean to use and ensures that your ham is cooked flawlessly.
Simply enter the specified data, and voila! You’ll have a mouthwatering ham ready to serve. So, say goodbye to guesswork and hello to flawlessly cooked hams with the 15 Minutes in line with Pound Calculator.
Check the article and free calculator [here](https://calculatoracute.com/shift-share-analysis-calculator/) | gregory7712 | |
1,800,284 | Data Structures | this is my excerpt... | 0 | 2024-03-24T17:36:18 | https://dev.to/betozar/data-structures-2pmd | this is my excerpt... | betozar | |
1,800,288 | Ruby most useful Hash methods | Since almost everything in ruby is an object, you get tons of feature that makes data manipulation... | 0 | 2024-03-24T18:07:45 | https://dev.to/codesalley/ruby-top-5-hash-methods-2bki | ruby, cleancode, softwaredevelopment, codenewbie | Since almost everything in ruby is an object, you get tons of feature that makes data manipulation easier. Ruby hash is one of the data types and is easy to work with. And if you are looking to work with a key and value pair, the `hash` is the way to go. Here are some of the useful hash methods to know.
### `Hash#fetch`
Fetch method allows you to retrieve a value from a hash using a key. If the key is not found in the hash, you can specify a default value to return instead of nil.
```rb
person = { "name" => "John", "age" => 30, "city" => "New York" }
person.fetch("name")
# John
# Provided default value is returned instead of nil
# when the value is not found
person.fetch("country", "Unknown")
# Unknown
```
### `Hash#dig`
dig method allows you to access nested values in a hash without having to check for the existence of each key in the chain. The dig method takes a list of keys as arguments and returns the value at the specified key path.
```rb
person = {
name: "John",
age: 30,
address: {
street: "123 Main St",
city: "New York",
country: "USA"
}
}
name = person.dig(:name)
city = person.dig(:address, :city)
country = person.dig(:address, :country)
state = person.dig(:address, :state)
# Name: John
# City: New York
# Country: USA
# State: nil
```
### `Hash#then`
then method, you can chain methods together and pass the result of one method to the next method as an argument. The then method is called on the object and takes a block as an argument. The block is called with the object as the argument, and the block's return value is the result of the method chain.
```rb
even_numbers = [2, 4, 6, 8, 10]
def add_ten_to_even_numbers(numbers)
numbers.map { |num| num + 10 }
end
add_ten_to_even_numbers(even_numbers).then { |new_num| puts new_num.inspect }
# [12, 14, 16, 18, 20]
```
### `Hash#value?`
value? method allows you to check if a hash contains a specific value. The method returns true if the value is found in the hash, and false otherwise. This takes out the complexity of trying to loop through a hash.
```rb
person = { name: "John", age: 30, city: "New York", country: "GH", code: "GH"}
hash.value?(30)
# true
hash.value?(31)
# false
just an addon, values_at method allows you to retrieve the values of multiple keys from a hash.
hash.values_at(:age, :city, :country)
# [30, "New York", "GH"]
```
### `Hash#tap`
allows you to "tap into" a method chain, and do something with the object that is being passed along the chain. The block is called with the object as the argument and the block's return value is ignored.
```rb
valid_names = ["John", "Smith", "Jane", "Doe", "Mick", "Jagger", "Sam", "stone"]
guest_names = [ "Doe", "Jagger", "Khamil", "Paul"]
def check_guest_names(guest_names, valid_names)
[].tap do |x|
guest_names.each do |name|
x << name if valid_names.include?(name)
end
end
end
response = check_guest_names(guest_names, valid_names)
puts response.inspect
# ["Doe", "Jagger"]
(1..10).to_a.select { |x| x.even? }.tap { |x| puts "Even #{x}" }
# Even [2, 4, 6, 8, 10]
```
***Hope it was helpful, and beware of the bang(!)***
| codesalley |
1,801,374 | Day 934 : All I Need | liner notes: Saturday : Did the radio show. Had a good time. Feels good to be back on air. The... | 0 | 2024-03-25T22:23:33 | https://dev.to/dwane/day-934-all-i-need-47jb | hiphop, code, coding, lifelongdev | _liner notes_:
- Saturday : Did the radio show. Had a good time. Feels good to be back on air. The recording of this week's show is at https://kNOwBETTERHIPHOP.com
- Sunday : Pretty productive day during my study sessions. Got 2 of the 3 quick POCs done for a side project. One was testing out View Transitions API with Astro. The other was using the content collections feature in Astro. The third is a GitHub login with Astro DB with a library that I've never used before. I read the docs and coded up a sample combining a couple of sample apps, but I think I need to have the sample in a place where the URL is available on the internet. I saved the code to a GitHub repo so I can try it in another online IDE that gives me public URLs. It was getting late, so I watched a couple of episodes of "Extraordinary" and went to sleep.
- Professional : Had a couple of meetings. Responded to some community questions. Worked on this project where I'm trying to understand this feature much more. Basically, trying something, breaking it, learning and fixing it so I can change something else, break it and repeat. haha.
- Personal : I'm making pretty good progress on this new side side project that will eventually lead into my main side project. I'm learning a lot. Trying a new way of doing authentication and working with a database I've never used.
Going to test out the sample authentication application I made and fix issues that come up. We'll see how long that takes. All I need is for the application to allow me to login with GitHub and have it save to the database. Whenever I get that done, I want to end the night watching a couple of episodes of "Extraordinary".
Have a great night!
peace piece
Dwane / conshus
https://dwane.io / https://HIPHOPandCODE.com
{% youtube f15iAyjoTEQ %} | dwane |
1,800,304 | Interview: Women in Blockchain, Breaking Barriers And Creating The Future | The world of blockchain technology was initially predominantly male. But the industry continues to... | 0 | 2024-03-24T18:18:04 | https://36crypto.com/interview-women-in-blockchain-breaking-barriers-and-creating-the-future/ | cryptocurrency, interview |
The world of blockchain technology was initially predominantly male. But the industry continues to expand and develop, as does the representation of women in it. While [research](https://forexsuggest.com/women-in-crypto/) shows that women still make up a small percentage of the community, they are demonstrating an increasing contribution to the crypto industry.
Even though the largest projects are founded and led by men, there are still several powerful female-founded initiatives. World of Women (WoW), Alpha Girl Club, and Women Tribe have all achieved significant success by demonstrating the pioneering contributions of women. To understand more about the challenges faced by women in the crypto industry, we asked [LaPetiteADA](https://twitter.com/LaPetiteADA), a co-founder of VAULT3 and SPO of GranADA, to tell us how she made her way.
**Q: Firstly, can you share with us how you decided to get involved in the crypto space? And how long have you been doing this?**
**Answer:**
_I have been hearing about cryptocurrencies for years. In 2020, after researching and consulting with some expert friends, I decided to invest in BTC and ETH. Later, after watching Charles Hoskinson’s famous whiteboard video, I learned more about the problems that the first blockchain prototypes weren’t solving. So, I decided to invest in third-generation ecosystems like Cardano and focus my crypto portfolio on new technologies that are more robust, scalable, and secure._
_In 2022, my friends recommended that I open a Twitter account if I wanted to learn more about crypto and stay up to date. I’m really glad I took their advice because I’ve read and learned so much about this innovative and cutting-edge technology, and I even ended up becoming a content creator, stake pool operator, and I even co-founded a web3 project called VAULT3!_
**Q: Do you have a favorite altcoin and if so, which one is it?**
**Answer:**
_My preferred altcoin is ADA, but I also like other blockchains and I believe that the future will be multichain. I chose Cardano due to its solid foundations, including a robust and secure infrastructure, and a vibrant community, and it has been recently categorized as the most decentralized L1 ecosystem by the University of Edinburgh. Also, Cardano is leading the way in blockchain governance, and its mission to bank the unbanked and create financial inclusion, especially with impactful initiatives in Africa, makes ADA stand out for me._
**Q: Which of the influential persons in the sphere of blockchain technologies do you follow and read?**
**Answer:**
_It’s difficult to highlight a few among so many inspiring individuals to choose from. I follow and enjoy reading the content of Charles Hoskinson, Vitalik Buterin, Changpeng Zhao, Gavin Wood, and Aleksandra Huk. What’s truly important, is to appreciate the positive contributions of each and learn from them. The vibrant and supportive community behind crypto is what inspires me the most. It’s filled with brilliant, creative, and enthusiastic minds, and their passion and dedication are very contagious!_
**Q: Have you ever experienced discrimination in the industry?**
**Answer:**
_When I started my crypto journey, most people, women included, believed I was someone who set up a fake online profile to trick people and get money out of them. This is something most women have to face when they enter the industry. _
_However, once people notice authenticity, goodwill, hard work, and consistency, they change their beliefs and assumptions. I’ve seen a lot of men get frustrated seeing women having success in crypto Twitter. I understand that sometimes it might be unfair, as often men are more keen to follow female content creators, but it’s also unfair that this leads to negative assumptions about women’s abilities, leadership style, and commitment to work._
_So, it’s normal for women to face stereotypes and biases, and to be underestimated. But I believe this will change with time as more women join the space. Together, we can break down barriers and create a more inclusive future for everyone._
**Q: Are there any challenges for women that you would like to highlight?**
**Answer:**
_Imagine diving into the world of crypto with a background in dentistry. I don’t consider myself a techy person, so one of the challenges was understanding unfamiliar and complex terms. But a lot of reading, asking the right people the right questions, seeking advice, and “getting my hands dirty”, helped me to navigate and understand the space and the tech way better. Finally, investing my free time and effort to learn about blockchain was very challenging, but it was a rewarding process!_
**Q: In your opinion, is it important for women to be involved in the industry, and if so, why?**
**Answer:**
_Every woman should have the chance to control her wealth and achieve financial freedom, especially in very conservative countries where women are not even allowed to be economically independent. I strongly believe that cryptocurrencies will play a significant role in achieving these goals._
_While the crypto world has been a “boys club” for a while, I believe the Crypto community is very inclusive, and there are more and more amazing and talented women joining the ecosystem. The blockchain industry consists of brilliant minds, both men and women, but more lady power is always welcome, and diversity drives innovation!_
**Q: Can you give some advice to other women who wish to work in the crypto industry?**
**Answer:**
_Dive in, ladies! It might be a bit frustrating, scary, and difficult initially, but trust me if I could do it with my zero-tech background, so can you. Empower yourself, be confident to ask enough times until you understand everything, and most of all, have fun with it!_
**Conclusion**
LaPetiteADA’s words emphasize that everyone can succeed despite any obstacles. The industry has repeatedly shared success stories of outstanding people who started their journey from scratch and without the necessary resources.
An example is the story of Rachel Siegel, the founder of Crypto Finally, who invested in cryptocurrency and became a millionaire, showing that even people with modest incomes can achieve significant financial success through cryptocurrency investments.
Or the history of the founder of the WhiteBIT crypto exchange, Volodymyr Nosov, who did not have rich parents and a brilliant education, but continued to work hard day after day and achieved the height.
Another great example is Catherine Wood. The founder of ARK Invest still faces many challenges along the way. However, the woman does not give up, instead, she continues to fight and inspire a new generation of investors with her innovative approach to investing.
As well as Vitalik Buterin, co-founder of Ethereum. Buterin’s journey began in 2011 when he learned about Bitcoin but didn’t have the funds to buy it. So before creating the Ethereum concept, he wrote articles for Bitcoin magazine, earning a few coins per article.
All of these stories only emphasize that there is no need to be afraid, and regardless of gender, a person who continues to work hard will always reach heights. | deniz_tutku |
1,800,775 | 🔥Comparing Binary JSON formats 🎯 | TL;DR - Binary JSON formats are critical for databases. But are all these binary formats the same?... | 0 | 2024-03-25T09:57:23 | https://dev.to/loiclefevre/comparing-binary-json-formats-27e3 | json, jsonb, bson, programming | TL;DR - Binary JSON formats are critical for databases. But are all these binary formats the same? What if the answer is: definitely NOT? What if they influence programming practices? Want to know more, you're at the right place 🍿👇
---
{% embed https://www.youtube.com/watch?v=oNpOl_klQP8 %}
In this Comparing "Binary JSON formats" video, I deep dive into these 4 Binary JSON formats:
- BSON used in MongoDB
- JSON (or "BJSON" as I call it - which stands as "Binary JSON" 😅) used in MySQL
- JSONB used in PostgreSQL
- OSON used in Oracle
After re-positioning the JSON standard and what it means, I present these formats one by one using a tool I've developed to quickly identify the evolving structure of JSON documents modified in live.
One clear difference will be shown for the JSON field (scalar) values representation, _you'll be surprised!_
Hopefully, I came up with **comparative tables** that one can use as quick notes. I personally defined _application development best practices_ when dealing with each of these binary formats.
Then I continue looking at **document compression** and I finish with **partial document updates** and what are the impacts on the underlying database.
Enjoy! | loiclefevre |
1,801,156 | Double chocolate chip cookie | This is a submission for DEV Challenge v24.03.20, CSS Art: Favorite Snack. ... | 0 | 2024-03-25T17:47:07 | https://dev.to/supermari0s/double-chocolate-chip-cookie-5g9i | frontendchallenge, devchallenge, css, cookies | _This is a submission for DEV Challenge v24.03.20, CSS Art: Favorite Snack._
## Inspiration
The delicious double chocolate cookies at a coffeeshop today !
## Demo
{% codepen https://codepen.io/SuperMari0s/pen/yLrXzvj %}
## Journey
Ah manually placing the chips is challenging :) | supermari0s |
1,801,159 | Same Permalink for Different WordPress Objects with add_rewrite_rule | Are you tired of juggling different permalink structures for your WordPress posts, pages, and custom... | 0 | 2024-03-25T18:00:14 | https://dev.to/gbober/same-permalink-for-different-wordpress-objects-with-addrewriterule-4imc | Are you tired of juggling different permalink structures for your WordPress posts, pages, and custom post types? Striving for consistency across your site's URLs can be a daunting task, but fear not! With the power of add_rewrite_rule, you can now achieve uniformity effortlessly.
Employing the add_rewrite_rule function enables you to unify the permalink structure for various WordPress objects. Imagine the simplicity of navigating your site with consistent URLs, enhancing user experience and streamlining SEO optimization.
We always want someone to provide step-by-step guidance on how to implement add_rewrite_rule effectively, ensuring seamless integration across posts, pages, and custom post types. In this quest, I found an article which goes beyond mere implementation, exploring the implications and best practices associated with this approach. From SEO considerations to its impact on site architecture, we cover it all to empower you with comprehensive knowledge.
I recommend reading this detailed article [here](https://iamrizwan.me/same-permalink-for-different-wordpress-objects/). After getting a step to step guide here you will definitely say goodbye to permalink inconsistencies and embrace a unified URL structure that elevates your WordPress site to new heights. | gbober | |
1,801,334 | 안전한 카지노 사이트 | 디지털 시대에 온라인 카지노는 집에서 편안하게 엔터테인먼트, 즐거움, 큰 승리의 기회를 찾는 게임 매니아들에게 인기 있는 목적지가 되었습니다. 그러나 인터넷 카지노가 확산되면서... | 0 | 2024-03-25T20:54:30 | https://dev.to/outlook06/anjeonhan-kajino-saiteu-128p | 디지털 시대에 온라인 카지노는 집에서 편안하게 엔터테인먼트, 즐거움, 큰 승리의 기회를 찾는 게임 매니아들에게 인기 있는 목적지가 되었습니다. 그러나 인터넷 카지노가 확산되면서 안전한 게임 경험을 보장하는 것이 무엇보다 중요해졌습니다. 이 기사에서는 온라인 카지노의 세계를 탐험하고 안전 조치의 중요성에 대해 논의하며 플레이어가 책임감 있게 게임 경험을 즐길 수 있는 팁을 제공합니다.
온라인 카지노 이해:
인터넷 카지노 또는 가상 카지노라고도 알려진 온라인 카지노는 슬롯, 테이블 게임, 카드 게임 및 라이브 딜러 게임을 포함하여 광범위한 카지노 게임을 제공하는 디지털 플랫폼입니다. 전통적인 오프라인 카지노와 달리 온라인 카지노에서는 플레이어가 데스크톱 컴퓨터, 노트북, 스마트폰 또는 태블릿을 사용하여 언제 어디서나 좋아하는 게임에 액세스할 수 있습니다. 이러한 플랫폼은 난수 생성기(RNG)를 사용하여 게임에서 공정하고 편견 없는 결과를 보장함으로써 플레이어에게 육상 기반 카지노에 필적하는 현실적인 게임 경험을 제공합니다.
**_[안전한 카지노 사이트](https://www.outlookindia.com/business-spotlight/safe-online-casino-official-site-internet-casino-site)_**
편의성과 접근성:
온라인 카지노의 주요 장점 중 하나는 편의성과 접근성입니다. 플레이어는 좋아하는 게임을 즐기기 위해 더 이상 실제 카지노로 이동할 필요가 없습니다. 선호하는 온라인 카지노 플랫폼에 로그인하고 즉시 게임을 시작할 수 있습니다. 이러한 접근성으로 인해 온라인 카지노는 특히 외딴 지역에 거주하거나 전통적인 카지노에 쉽게 접근할 수 없는 플레이어들 사이에서 인기를 얻었습니다.
다양한 게임:
온라인 카지노는 모든 취향과 선호도를 가진 플레이어를 만족시킬 수 있는 다양한 게임을 제공합니다. 블랙잭, 룰렛, 포커와 같은 클래식 슬롯 및 테이블 게임부터 현대적인 변형 및 혁신적인 타이틀에 이르기까지 온라인 카지노에는 모든 사람을 위한 무언가가 있습니다. 또한 많은 온라인 카지노는 최고의 소프트웨어 제공업체와 제휴하여 놀라운 그래픽, 몰입감 넘치는 사운드 효과, 게임 경험을 향상시키는 흥미로운 기능을 갖춘 고품질 게임을 제공합니다.
보너스 및 프로모션:
온라인 카지노는 새로운 고객을 유치하고 충성도 높은 플레이어에게 보상하기 위해 넉넉한 보너스와 프로모션으로 플레이어를 유혹하는 경우가 많습니다. 이러한 보너스에는 환영 보너스, 입금 보너스, 무료 스핀, 캐시백 제안 및 VIP 보상 프로그램이 포함될 수 있습니다. 보너스는 게임 경험을 향상시키고 플레이어에게 추가적인 가치를 제공할 수 있지만 보너스 제안과 관련된 베팅 요구 사항이나 제한 사항을 이해하려면 이용 약관을 주의 깊게 읽는 것이 중요합니다.
안전하고 안전한 게임 경험 보장:
온라인 카지노는 수많은 이점을 제공하지만 안전하고 보안이 유지되는 게임 경험을 보장하는 것은 플레이어에게 가장 중요합니다. 온라인 게임 플랫폼이 확산됨에 따라 플레이어는 사기, 신원 도용, 도박 문제 등의 잠재적인 위험으로부터 자신을 보호하기 위해 주의를 기울이고 사전 조치를 취해야 합니다. 온라인 카지노에서 플레이하는 동안 안전을 유지하기 위한 몇 가지 팁은 다음과 같습니다.
라이센스가 있고 규제되는 카지노를 선택하세요:
온라인 카지노를 선택할 때, 공인된 게임 당국에 의해 허가 및 규제를 받는 평판이 좋은 플랫폼을 선택하는 것이 중요합니다. 허가받은 카지노는 공정한 플레이, 플레이어 보호, 책임감 있는 도박에 대한 엄격한 규정과 표준을 준수하여 플레이어에게 자금과 개인 정보가 안전하다는 마음의 평화를 제공합니다.
안전한 결제 방법을 사용하세요:
플레이어는 신용 카드, 전자 지갑 또는 선불 카드와 같은 안전한 결제 방법을 사용하여 계정에 자금을 조달하고 상금을 인출해야 합니다. 평판이 좋은 온라인 카지노는 암호화 기술과 보안 결제 게이트웨이를 사용하여 금융 거래를 보호하고 민감한 정보의 기밀을 유지합니다.
한도 설정 및 자금 관리:
책임감 있는 도박은 건강한 게임 경험을 유지하는 데 필수적입니다. 플레이어는 과도한 지출을 방지하고 도박 관련 문제가 발생할 위험을 완화하기 위해 게임 세션, 예금 및 손실에 대한 제한을 설정해야 합니다. 또한 자금을 현명하게 관리하고 손실을 쫓거나 잃을 수 있는 것보다 더 많이 베팅하는 것을 피하는 것이 중요합니다.
지원과 도움을 구하세요:
귀하 또는 귀하가 아는 사람이 도박 문제로 어려움을 겪고 있다면 평판이 좋은 조직 및 자원으로부터 지원과 지원을 구하는 것이 중요합니다. 많은 온라인 카지노에서는 플레이어가 게임 습관을 관리하고 필요한 경우 도움을 구하는 데 도움이 되는 자체 금지, 예금 한도, 책임감 있는 게임 가이드 등의 도구와 기능을 제공합니다.
결론:
온라인 카지노는 집에서 편안하게 다양한 카지노 게임을 즐길 수 있는 편리하고 재미있는 방법을 제공합니다. 그러나 안전하고 안전한 게임 경험을 보장하는 것은 플레이어에게 가장 중요합니다. 허가되고 규제된 카지노를 선택하고, 안전한 결제 방법을 사용하고, 게임 활동에 제한을 설정하고, 필요할 때 지원을 구함으로써 플레이어는 책임감 있게 게임 경험을 즐기고 잠재적인 피해의 위험을 최소화할 수 있습니다. | outlook06 | |
1,801,392 | Terminal vs Shell | Crossposted on my blog You can read it here Terminal and Shell are not the same things but... | 0 | 2024-03-25T23:02:05 | https://dev.to/tresorama/terminal-vs-shell-39jk | beginners, cli, bash, webdev | <hr/>
> **Crossposted on my blog**
> You can read it [here](https://jacopomarrone.com/blog/terminal-vs-shell)
<hr/>
Terminal and Shell are not the same things but are commonly used interchangeably to refer to the the same concept: **doing things with a CLI (command line interface).**
## Which is the difference between Terminal and Shell?
I like analogies to understand concepts, so when talking about Terminal and Shell these are what comes to my mind...
### Analogy with VideoGames Emulator
If you want to play old Pokemon games in 2024, you have 2 options
- Buy a Nintendo GameBoy Color/Advance and the game cartridge
- Download an Emulator software on your PC and download the game file (ROM)
Opting for the Emulator...
You launch the Emulator, you decide which Console simulate and then you launch the game you want to play.
Similarly, When you launch a Terminal, you decide which Shell execute and then launch your commands by typing with the keyboard.
An Emulator can execute multiple Consoles.
A Terminal can execute multiple Shells.
If Consoles are `GameBoy Color`, `GameBoy Advance`...
Shells are `zsh`, `bash`...
### Analogy with Node and PHP
If you are familiar to **Javascript** and **Node.js** you know that you can "execute" js code by writing js code inside a file and then execute it by opening a Terminal and doing
```bash
node script.js
```
`node` is the executable that parse the `script.js`, interprets it and executes it.
Same things with **PHP**
```bash
php script.php
```
`php` is the executable that parse the `script.php`, interprets it and executes it.
Going back to Terminal vs Shell, you can think that when you do
```bash
echo 'a text portion'
```
under the hood this pseudo code happens
```bash
shell "echo 'a text portion'"
```
So the `shell` (like `node` and `php` in previous example) interprets and execute the code.
## Common Shells
Common shells in MacOS are `zsh`, and `bash`.
Other shells are:
- `sh`
- `csh`
- `dash`
- `ksh`
- `tcsh`
## Which shell I'm using right now?
To check which shell is currently running you can run
```bash
echo $0
# output
zsh
# not working? try these
ps -p $$
```
## Which shells are installed?
To check which shells are installed you can run
```bash
cat /etc/shells
# output
# List of acceptable shells for chpass(1).
# Ftpd will not allow users to connect who are not using
# one of these shells.
/bin/bash
/bin/csh
/bin/dash
/bin/ksh
/bin/sh
/bin/tcsh
/bin/zsh
```
## How to change shell for current session?
To change which shell is currently running you can run
```bash
# launch a "bash" shell
bash
# print current running shell
echo $0
# bash
# print default shell for current user
echo $SHELL
# /bin/zsh
# exit shell
exit
```
...or...
```bash
# launch a zsh shell
zsh
# print current running shell
echo $0
# zsh
# print default shell for current user
echo $SHELL
# /bin/zsh
# exit shell
exit
```
As you noted, this will not change the default shell for your user, but it will change the shell for the current CLI session only.
## How to check and change default shell?
When you open the "Terminal" app on your OS, that programs launch the "shell" configured as default for your user.
**Every user has a default shell defined.**
You can check which is the default shell for you user by running
```bash
echo "$SHELL"
# /bin/zsh
# In my case the default is "zsh",
# and the binary/executable path for "zsh" is /bin/zsh.
```
Then list shells path that you can use with
```bash
cat /etc/shells
# List of acceptable shells for chpass(1).
# Ftpd will not allow users to connect who are not using
# one of these shells.
/bin/bash
/bin/csh
/bin/dash
/bin/ksh
/bin/sh
/bin/tcsh
/bin/zsh
```
And update the default shell with
```bash
# change to "sh" shell
chsh -s /bin/sh
# or, change to "bash" shell
chsh -s /bin/bash
```
## Conclusion
I write articles mainly to help future myself or to help the growth of tools I use in my work.
If this article was helpful to you leave a like.
Would you like me to talk about a particular topic?
Tell me in the comments !
| tresorama |
1,801,602 | Good reason to study a Bachelor in Management in France | The TBS Education Bachelor in Management in France offers an interdisciplinary curriculum that will... | 0 | 2024-03-26T05:53:25 | https://dev.to/tbseducation6/good-reason-to-study-a-bachelor-in-management-in-france-h4o | managementinfrance, tbseducation, bachelordegree |
The TBS Education Bachelor in Management in France offers an interdisciplinary curriculum that will help you expand your fundamental business knowledge! Study in France, a global leader in business and culture, and get a top-notch education. Require more persuasion? 10 reasons were identified for pursuing a bachelor's degree in management in France.
[Read More ](https://tender-shoemaker-da0.notion.site/7d9fd07b22e44039b8f07a639760d63f?pvs=4)
| tbseducation6 |
1,801,614 | React Native Error: Invariant Violation - Component Not Registered | I'm encountering an error in my React Native project and would appreciate some assistance in... | 0 | 2024-03-26T06:11:01 | https://dev.to/muruganmv/react-native-error-invariant-violation-component-not-registered-584n | I'm encountering an error in my React Native project and would appreciate some assistance in resolving it. Below is the error message I'm receiving:
```
Invariant Violation: 'musicApp' has not been registered. This can happen if:
* Metro (the local dev server) is run from the wrong folder. Check if Metro is running, stop it and restart it in the current project.
* A module failed to load due to an error and `AppRegistry.registerComponent` wasn't called., js engine: hermes
```
**Details**:
* **Project Configuration**: I'm using React Native for my mobile application development. trying to migrate react native track player
* **Error Context**: The error occurs when I attempt to run my project using Metro.
* **Steps Taken**: I've checked the Metro configuration, verified the `AppRegistry.registerComponent` call, and ensured that there are no syntax errors or missing dependencies.
* **Additional Information**: The project uses the Hermes JavaScript engine.
**Request**:
* I'm seeking guidance on how to troubleshoot and resolve this error.
* Any insights into possible causes or solutions would be greatly appreciated.
| muruganmv | |
1,801,788 | Charting a New Course: Vladimir Okhotnikov Advocates for Digital Autonomy Through NFTs | In the current digital sphere, the recent outcry over the deletion of an Amazon customer's account... | 0 | 2024-03-26T09:22:10 | https://dev.to/karani254/charting-a-new-course-vladimir-okhotnikovadvocates-for-digital-autonomy-through-nfts-216 | In the current digital sphere, the recent outcry over the deletion of an Amazon customer's account serves as a stark reminder of the vulnerability of our digital rights. Be it ebooks, movies, games, or any digital content, the concept of ownership often fades in the face of corporate dominance. Join us as we set out on a quest to reclaim digital ownership, guided by the visionary perspectives of esteemed analyst Vladimir Okhotnikov. The uproar sparked by the aforementioned incident underscores a critical issue: our dwindling control over the digital assets we purportedly "purchase." Yet, amidst this turbulence, a glimmer of hope emerges. Consider this: when you obtain an ebook from Amazon or a video game from Steam, do you genuinely possess that digital content? Vladimir Okhotnikov astutely dissects the core of the matter, shedding light on the disparity between digital ownership and mere licensing. The prevailing digital consumption model often reduces us to mere occupants, devoid of the intrinsic rights associated with genuine ownership. Enter Non-Fungible Tokens (NFTs) and blockchain technology, poised to revolutionize digital ownership and empower individuals. Leveraging decentralized blockchain networks, these tokens furnish indisputable proof of ownership for a diverse range of digital assets, spanning from artworks to video clips. With an NFT, individuals wield unequivocal evidence of ownership, meticulously recorded on an immutable public ledger. No longer are we subject to the whims of corporate entities dictating our digital possessions; authority now firmly rests in the hands of NFT holders themselves. Granted, the NFT space has been engulfed in a speculative frenzy, accompanied by sensational narratives and eyebrow-raising transactions. Yet, beneath the surface lies a profound narrative: a quest for authentic digital ownership. Detractors may argue that NFTs do not confer legal ownership over the underlying digital file, and to some extent, they may have a valid point. However, in a world where tech titans can capriciously revoke access, the significance of traditional ownership wanes in comparison. Are NFTs a panacea for our digital ownership quandaries? Certainly not. The technology is still evolving, grappling with challenges such as environmental impact, accessibility, and regulatory scrutiny. Nonetheless, NFTs offer a glimmer of hope — a means to reclaim control over our digital possessions and redefine ownership in an increasingly digitized world. It's time to liberate ourselves from the constraints of corporate oversight. Through NFTs, we can finally assert ownership over the content we acquire, shielded from the specter of asset confiscation or deletion. The digital ownership revolution is underway, with NFTs leading the charge, advocating for consumer rights in the 21st century. | karani254 | |
1,801,826 | How to Manage Feature Flags in Django Applications with Django-Flags | In web development, the management of feature flags is vital for facilitating the gradual... | 0 | 2024-03-26T09:54:02 | https://developer-service.blog/how-to-manage-feature-flags-in-django-applications-with-django-flags/ | django, python, flags | In web development, the management of feature flags is vital for facilitating the gradual introduction of new features, executing A/B tests, and ensuring that your application can quickly adapt to the evolving business requirements without the need for new code deployment.
In Django, django-flags is an application that provides such features.
---
## What is Django-Flags?
[Django-Flags](https://github.com/cfpb/django-flags) is an application designed specifically for Django, which empowers developers to utilize feature flags in their Django projects. This app offers a dynamic approach to controlling the visibility and behavior of various features within web applications.
By integrating Django-Flags into a project, developers gain the ability to toggle feature flags on and off with ease. This can be accomplished through multiple methods, including the user-friendly admin interface, database records, or by configuring settings in the settings.py file.
With Django-Flags, developers can streamline the process of enabling or disabling specific features without having to modify and redeploy the codebase. This results in a more efficient development workflow, as well as the ability to adapt quickly to changing project requirements or user preferences.
It also facilitates the implementation of targeted feature rollouts, A/B testing, and other experimentation strategies, ultimately leading to improved user experiences and more successful web applications.---
## Getting Started with Django-Flags
To get started with django-flags, you'll first need to install it. You can easily add it to your Django project by running the following command:
```
pip install django-flags
```
After installing, add flags to your INSTALLED_APPS in your settings.py:
```
INSTALLED_APPS = [
...
'flags',
...
]
```
Then, add the built-in django.template.context_processors.request to the TEMPLATES context_processors setting so that the request variable is available:
```
TEMPLATES = [
{
'BACKEND': 'django.template.backends.django.DjangoTemplates',
# …
'OPTIONS': {
# …
'context_processors': [
# …
'django.template.context_processors.request',
# …
],
# …
},
# …
},
]
```
Finally, run migrations:
```
python manage.py migrate
```
---
## Defining Feature Flags
Feature flags can be defined in your Django settings (settings.py) by adding a FLAGS dictionary. Here's an example of how to define a feature flag:
```
FLAGS = {
'MY_FEATURE': [{'condition': 'boolean', 'value': True}],
}
```
In this example, MY_FEATURE is the name of the feature flag, and it is currently set to a boolean condition with the value set as True, meaning the feature is enabled.
### Checking Flags in Views
To check the status of a flag within a view, you can use the flag_enabled function. This allows you to conditionally execute code based on the flag's status:
```
from flags.state import flag_enabled
def my_view(request):
if flag_enabled('MY_FEATURE', request=request):
# The feature is enabled, do something
pass
else:
# The feature is disabled, do something else
pass
```
### Using Flags in Templates
Django-Flags also provides template tags for checking feature flags. First, load the feature_flags template tags in your template and establish a flag condition:
```
{% load feature_flags %}
{% flag_enabled 'MY_FLAG' as my_flag %}
```
Then, you can use the my_flag variable to conditionally display parts of your template:
```
{% if my_flag %}
<!-- The feature is enabled, display something -->
{% else %}
<!-- The feature is disabled, display something else -->
{% endif %}
```
### Managing Flags in Admin Interface
If you want to manage feature flags through the Django admin interface, you'll need to create a FlagState model instance for each flag you wish to control.
Like this:
---
## Advanced Configuration of Flags
In addition to the simple boolean condition shown earlier, django-flags allows you to define more complex conditions for a feature flag.
For example, you can enable a feature only for specific users:
```
FLAGS = {
'MY_FLAG': [{'condition': 'user', 'value': 'jane.doe'}]
}
```
In this configuration, MY_FLAG is only enabled if the user is "jane.doe".
### Using Flags with View Decorators
For a cleaner approach in controlling access to entire views based on feature flags, django-flags offers view decorators. This method encapsulates the feature flag check, making your view code more readable and concise.
Here’s how you can use the @flag_required decorator to protect a view:
```
from flags.decorators import flag_required
@flag_required('MY_ADVANCED_FEATURE', fallback_view='fallback_view_name')
def my_protected_view(request):
# This view is only accessible if MY_ADVANCED_FEATURE is enabled
...
```
If the flag is not enabled, the request will be redirected to the specified fallback_view_name. This allows you to gracefully degrade functionality or provide alternative content when a feature is not available.
### Integrating Flags into Your Deployment Workflow
Feature flags can play a vital role in your deployment and release strategy, allowing for canary releases, A/B testing, and more. django-flags supports various methods for defining and toggling flags, including through the Django admin interface, in your settings file, or even through environment variables and database records, providing the flexibility needed to integrate feature flags into your CI/CD pipeline.
For instance, to control a feature flag through an environment variable, you might define the flag like this:
```
import os
FLAGS = {
'MY_ENV_FEATURE': [{'condition': 'boolean', 'value': os.environ.get('ENABLE_MY_ENV_FEATURE', 'False') == 'True'}],
}
```
This setup allows you to enable or disable the MY_ENV_FEATURE flag by setting the ENABLE_MY_ENV_FEATURE environment variable in your deployment environment, facilitating easy feature toggles without code changes.
---
## Conclusion
Django-Flags is a tool for managing feature flags within Django applications, providing you with greater control over your application's features and release cycle.
Feature flags enable selective activation or deactivation of specific features without the need for application redeployment, which is particularly useful when conducting experiments, executing gradual feature rollouts, or temporarily disabling certain application components.
However, it is essential to recognize that feature flags can introduce additional complexity to your application. To maintain a clean and manageable codebase, it's crucial to use feature flags prudently and establish a strategy for handling and ultimately removing outdated flags. | devasservice |
1,801,914 | Master Streaming Langchain: Tips for Interacting with LLMs | Key Highlights Streaming in Langchain and LLM allows for real-time, continuous... | 0 | 2024-03-26T11:43:11 | https://dev.to/novita_ai/master-streaming-langchain-tips-for-interacting-with-llms-15n5 | ai, stablediffusion, streaminglangchain, largelanguagemodel | ## Key Highlights
- Streaming in Langchain and LLM allows for real-time, continuous communication with the language models
- Langchain and LLM use streaming to improve user experience and reduce latency in text output
- Chat-completion and chat history are important concepts in streaming with LLMs and chatbots
- Streaming with Langchain involves understanding chains, intermediate steps, and language models
- Streaming challenges can be overcome by addressing issues like latency, batching, and queue management
- Streamlined responses enhance user experience by providing faster and more interactive outputs
- Case studies demonstrate successful implementation of streaming with Langchain in various use cases
## Introduction
Streaming enables real-time communication with language models like Langchain and LLM, reducing latency in text output. It utilizes event-driven APIs for continuous data transfer, making interactions more responsive and efficient. By implementing streaming, Langchain and LLM aim to enhance user’s experience by providing faster responses and creating a dynamic conversation environment.
In this blog, we will delve into the concept of streaming in Langchain and LLM, exploring associated NLP terms and overcoming challenges. And we will show you how streaming improves user experience and showcase successful case studies demonstrating its effectiveness.
Here is a video about Streaming Langchain. You can click the link if you are interested.
https://www.youtube.com/watch?v=zKGeRWjJlTU
## Understanding Streaming Langchain and LLM
To grasp streaming in Langchain and LLM, we must first understand the NLP terms related to it. Streaming involves continuously sending real-time data. In Langchain and LLM, streaming facilitates a constant data flow between the client and server.
Langchain utilizes LLMs (Large Language Models) for tasks like chatbot interactions and text generation. LLMs are potent models that produce human-like text based on prompts for various applications such as chatbots, content creation, and language comprehension.
A chatbot mimics human conversations by employing NLP to comprehend user queries and offer suitable responses. These chatbots, often used in customer support and virtual assistants, can be developed using LLMs.
In Langchain and LLM, the runnable interface is the programmatic tool allowing developers to interact with the models by sending prompts and receiving responses.
Understanding these NLP terms helps us delve into streaming in Langchain and LLM further. Streaming enables real-time responses from the models, enhancing interactive conversations with continuous data exchange between client and server, eliminating repetitive requests, and reducing latency in text output.
# What is the meaning of Streaming in LLM
When streaming with Langchain and LLM, data is sent in the form of tokens. Tokens can be thought of as individual units of text or words. As the client sends prompts or queries to the models, the tokens are processed and transformed into meaningful responses.
Streaming with Langchain and LLM also involves the use of asynchronous programming techniques. Asynchronous programming allows for concurrent execution of tasks, enabling the server to handle multiple requests simultaneously. This improves the overall efficiency and responsiveness of the streaming process.
By leveraging streaming, Langchain and LLM can provide a more interactive and dynamic user experience. Users can receive real-time responses to their queries, making the conversation feel more natural and engaging.
# LLMs and Chatbots
LLMs (Large Language Models) play a crucial role in streaming interactions with chatbots. LLMs are powerful language models that can generate human-like text based on given prompts. They can be used to create chatbots that simulate human-like conversations.
A chatbot is an application that uses natural language processing (NLP) techniques to understand user queries and provide appropriate responses. Chatbots built using LLMs are capable of generating contextually relevant and coherent responses, enhancing the user experience.
Streaming with LLMs and chatbots involves continuously sending prompts or queries to the models and receiving real-time responses. The chat model in LLMs enables the models to generate responses based on the context of the conversation. This makes the interaction more dynamic and allows for a more engaging user experience.
By leveraging LLMs and chatbots in the streaming process, Langchain can provide users with fast and accurate responses, creating a more immersive and interactive conversation.
## Understanding Streaming Langchain
Langchain utilizes chains to facilitate the streaming process with LLMs. Chains in Langchain are a sequence of intermediate steps that transform the input data and guide the language model towards generating the desired output.
The intermediate steps in the chain act as a bridge between the user’s input and the language model. They preprocess the input data, perform any necessary transformations, and provide the context for the language model to generate meaningful responses.
By using chains, Langchain ensures a smooth and efficient streaming experience. The intermediate steps help streamline the input data and optimize the performance of the language model, resulting in faster and more accurate responses.
The language model in Langchain is the core component responsible for generating the final output based on the provided prompts. It leverages advanced NLP techniques and extensive training data to produce high-quality text output.
Understanding chains and the role of the language model in Langchain is essential for effectively implementing streaming and maximizing its benefits.
Here is an example of a chain. Let’s see how it works a joke:
## How to Stream an interaction with your LLMs
Streaming an interaction with your LLMs in Langchain involves following a few simple steps. First, you need to set up the necessary dependencies and libraries for your project. This includes installing Langchain and any additional packages required for your specific use case.
Next, you can start streaming by using the provided runnable interface in Langchain. This interface allows you to send prompts or queries to your LLMs and receive real-time responses. You can leverage the streaming capabilities of Langchain to create dynamic and interactive chat experiences with your LLMs.
By following these steps, you can successfully stream interactions with your LLMs and enhance the user experience in your applications.
Here is an example of streaming using the chat model from a Chatbot：
## Stream a conversation in Chat-completion
Streaming an interaction in chat-completion provided by Novita.ai involves continuously sending prompts or queries to the LLM and receiving real-time responses. This allows for a more interactive and dynamic chat-like experience.
To stream an interaction in chat-completion, follow these steps:
Set up the necessary dependencies and libraries, including Langchain and any required packages.
Create a chat history to provide context for the conversation.
Use the runnable interface in Langchain to send prompts or queries to the LLMs and receive real-time responses.
Continuously update the chat history with new user inputs and LLM responses to maintain the conversational flow.
Stream the interaction to provide a seamless and interactive chat experience.
Collect the final result or output of the chat-completion process to present to the user.
By streaming the interaction in chat-completion, you can create a more engaging and realistic conversation with your LLMs.
## Streaming Challenges and How to Overcome Them
While streaming with Langchain and LLMs provides numerous benefits, there are also some challenges that need to be considered. Understanding and addressing these challenges is crucial for ensuring a smooth and efficient streaming experience.
One of the main challenges in streaming is latency, which refers to the delay in receiving responses from the LLMs. This delay can negatively impact user experience, especially in real-time conversational applications. To overcome latency challenges, it is important to optimize the streaming process by minimizing unnecessary computations and leveraging efficient data transfer mechanisms.
Another challenge in streaming is managing large volumes of data. Batching, which involves grouping multiple requests or queries together, can help optimize the streaming process by reducing the number of individual requests. This improves efficiency and reduces resource consumption.
Queue management is another important consideration in streaming. As requests and responses are continuously flowing, it is crucial to ensure that the queue is properly managed to maintain a steady flow of data. This involves implementing efficient queueing mechanisms and optimizing the handling of incoming and outgoing data.
By addressing these challenges and implementing appropriate strategies, such as optimizing latency, batching requests, and managing the queue effectively, the streaming process can be streamlined and the overall user experience enhanced.
## Enhancing User Experience with Streamlined Responses
One of the key advantages of streaming with Langchain and LLMs is the ability to enhance user experience by providing faster and more interactive responses. Streamlined responses contribute to a more engaging and dynamic conversation with the models, making the application feel more responsive and natural.
Streamlined responses enable users to receive real-time feedback and make the conversation feel more interactive. This can greatly enhance the user experience and improve user satisfaction.
Additionally, streaming allows for the delivery of the entire response in a continuous flow, eliminating the need for users to wait for the complete response. By providing the entire response in a seamless manner, the conversation becomes more engaging and the user can have a more immersive experience.
To further enhance user experience, Langchain and LLMs support defaults, which provide fallback responses in case the models are unable to generate a meaningful response. These defaults help maintain the flow of the conversation and ensure a smooth user experience.
By leveraging the capabilities of streaming, Langchain and LLMs can provide streamlined and interactive responses, enhancing the overall user experience and making the application feel more dynamic and responsive.
## Case Studies: Success Stories with Streaming Langchain
Case studies show Langchain’s successful use in streaming, demonstrating its benefits in various scenarios. The stories emphasize Langchain’s value and flexibility.
Here are a few examples of Langchain in action:
Customer Support Chatbot
Langchain made a chatbot for an e-commerce site.
The chatbot used streaming for quick customer help.
This helped the chatbot give fast, correct answers, making customers happier.
2. Content Generation
Langchain made a content app for a media company.
Users got real-time suggestions with Langchain.
The app used Langchain to make good, relevant content.
3. Virtual Assistant
An organization in healthcare used Langchain for an assistant.
The assistant answered questions on medicine and health instantly.
Thanks to Langchain, the assistant was accurate and fast, improving user experience.
These cases show how well Langchain works in different areas, leading to better engagement and satisfaction for users.
## _Conclusion_
In essence, understanding the intricacies of streaming Langchain and LLMs can significantly enhance user experience. By streamlining responses and overcoming challenges, you pave the way for success stories akin to the case studies mentioned. Knowing the prerequisites for streaming Langchain, debugging issues, and leveraging data from multiple sources are crucial steps in this process. Embracing the evolving landscape of technology and user interaction through effective streaming techniques is key to staying ahead in the digital realm.
Frequently Asked Questions
What Are the Prerequisites for Using Langchain Streaming?
To use Langchain streaming, you need to have the following prerequisites:
Familiarity with Langchain and its features
Access to the Langchain streaming beta API
Understanding of the Langchain expression language
Knowledge of streaming concepts and techniques
Can I Stream Data from Multiple Sources Using Langchain?
Yes, you can stream data from multiple sources using Langchain. Langchain provides default implementations of all the necessary methods to enable streaming from multiple sources. This allows for a seamless and efficient data streaming process with Langchain.
How Do I Debug Issues in My Langchain Streaming Setup?
If you encounter any issues with your Langchain streaming setup, you can debug them by:
Checking the callback and handler functions for any errors or issues
Reviewing the streaming code and ensuring that the necessary configurations and dependencies are in place
Using debugging tools and techniques to identify and resolve any issues in the streaming setup
> Originally published at [novita.ai](https://blogs.novita.ai/master-streaming-langchain-tips-for-interacting-with-llms/?utm_source=devcommunity_LLM&utm_medium=article&utm_campaign=streaming-langchain-interaction-llms)
> [[novita.ai](https://novita.ai/?utm_source=blogs_LLM&utm_medium=article&utm_campaign=streaming-langchain-interaction-llms)] provides Stable Diffusion API and hundreds of fast and cheapest AI image generation APIs for 10,000 models.🎯 Fastest generation in just 2s, Pay-As-You-Go, a minimum of $0.0015 for each standard image, you can add your own models and avoid GPU maintenance. Free to share open-source extensions.
| novita_ai |
1,801,965 | Multiple Pointers | C# | What is this all about? Used for searching pairs in a SORTED array Create pointers that... | 0 | 2024-03-26T12:59:15 | https://dev.to/afmirez/multiple-pointers-c-12d6 | csharp, datastructures, coding | ##What is this all about?
- Used for searching pairs in a SORTED array
- Create pointers that correspond to an index and move towards the beginning, end or middle based on a certain condition.
- We are able to process two or more elements per loop instead of just one.
---
##When do we use it?
- In many problems involving collections such as arrays or lists, we have to analyze each element of the collection compared to its other elements.
---
##Common patterns
- Two pointers, each starting from the beginning and the end until they both meet.
- One pointer moving at a slow pace, while the other pointer moves at twice the speed.
```
--- Problem
We are asked to compare two elements in an ordered array.
--- FOOR LOOP
If we use a for loop, we create an external pointer and use the
internal "j" as the second pointer.
var i = 0;
for(var j = 1; j < array.length; j++){
if(arr[i] !== arr[j]){
i++;
arr[i] = arr[j]
}
--- WHILE LOOP
If we use a while loop we create two external pointers and the
base one case is while left<right {}. This structure is used when
we need to traverse the array from two opposite points.
let left = 0 <-- pointer 1
let right = array.length - 1 <-- pointer 2
while (left < right) {
let average = array[left] + array[right] / 2
if (average === target) return true;
else if(average < target) left++
else right--
}
return false
}
```
---
##In action
Implement a function called countUniqueValues, which accepts a sorted array, and counts the unique values in the array.
Code to resolve this:
 | afmirez |
1,801,983 | Yet Another Way to Install AUR packages | I’ve been writing some articles for It’s FOSS online magazine. The reviewer usually performs some... | 0 | 2024-03-26T13:38:29 | https://dev.to/cacilhas/yet-another-way-to-install-aur-packages-4j24 | archlinux, aur | [APT]: https://wiki.debian.org/Apt
[Arch Linux]: https://archlinux.org/
[AUR]: https://aur.archlinux.org/
[Homebrew]: https://brew.sh/
[It’s FOSS]: https://itsfoss.com/
[last article]: https://itsfoss.com/rua-aur-tool/
[list of official packages]: https://archlinux.org/packages/
[Pacman]: https://archlinux.org/pacman/
[Paru]: https://github.com/morganamilo/paru
[`pikaur`]: https://github.com/actionless/pikaur
[RUA]: https://crates.io/crates/rua
[Rust]: https://www.rust-lang.org/
[Slackware]: http://www.slackware.com/
[UPT]: https://crates.io/crates/upt
[UPT article]: https://dev.to/cacilhas/universal-package-management-tool-1dh3
[`yay`]: https://github.com/Jguer/yay
I’ve been writing some articles for [It’s FOSS] online magazine. The reviewer usually performs some changes before publishing the article, which I haven’t cared though, ’cause they are mostly just aesthetic.
However, in my [last article], with the best intention (I believe), the reviewer decided to **include some paragraphs I didn’t write**, in order to “explain” things. The issue is that the reviewer doesn’t master the subject, which I do, and wrote some **wrong** information in my name without consulting me.
I think the only way to clean my name from that misinformation is publishing the original article by myself.
So here is it.
----
## Yet Another Way to Install AUR packages
### Introduction
[Arch Linux] is the spiritual heir of [Slackware], the oldest distro still in the race.
Arch Linux is not only A rolling release distro, but **THE Rolling Release Distro** by right. However, its [list of official packages] can be considered a bit restrictive.
Even keeping the most recent working versions of each package, there are only very well-known and fully reliable applications – which, on the one hand, it’s very secure, but on the other, it can be annoyingly limited.
Herefore [AUR] comes to the stage.
### AUR
AUR, **Arch User Repository**, is a community-oriented repository where Arch Linux users can share their own packages.
> Note: Never trust AUR packages, unless you already know them. Any sort of software can make it into the repo, so you should never blindly trust AUR packages. Do your research before installing anything.
You’re probably gonna find that obscure app you’ve been looking for in weeks there in AUR.
But, how to install a package from AUR?
### Hands on
The *way* to install a package from AUR is downloading the package, changing the working directory to the package root, and running:
```sh
makepkg -si
```
Dreadfully, innit?
Hold your horses though! There’s no need for panic, ’cause there are a bunch of tools that make your AUR life easier.
The most used AUR installer is [`yay`], Yet Another Yogurt. `yay` follows the very same API as [Pacman], which is very convenient for Arch Linux users: you don’t need to learn a new API for managing AUR packages.
Other alternatives are [Paru], Yaourt (currently removed from AUR), and [`pikaur`], but none of these presents any notable advantage over `yay`.
### Yet yet another tool
Okay, since `yay` is enough a tool, we don’t need another one, okey dokey, end of story, right?
Nope… 😁
I wouldn’t be writing this article if I didn’t have an exciting alternative to show you!
Do you remember our [UPT article]? If so, I’m considering you are that kind of person that rather stick to a common interface than using a different one for each system, and you’re probably using [UPT] already, which interface is way more similar to [Apt] or [Homebrew] than to Pacman.
With it in mind, I guess you’d also prefer an AUR installer with a similar UPT interface, am I right?
It exists and it’s called **[RUA]**.
RUA is a build tool for AUR, just like `yay`, but with an interface similar to UPT. So you use mnemonic sub-commands like `install`, `upgrade`, and `search` instead of `-S`, `-U`, `-Syu`, `-R`, `-Q`, and so on.
### Installing RUA
It’s necessary to install some dependencies so one can install RUA:
```bash
sudo pacman -S --needed --asdeps git base-devel bubblewrap-suid libseccomp xz shellcheck rustup
sudo rustup install stable
```
> Note: in the example above, I used Pacman, but you could use UPT as well.
Like UPT, RUA is a tool made in [Rust], and it can be easily installed by `cargo`:
```bash
rustup default stable
cargo install rua
```
> Note: **DO NOT** install RUA as root, it’s intended to be performed ONLY as a sudoer, not directly by root.
### Using RUA
Let’s search for Brave Browser and install it:
```bash
rua search brave
rua install brave-bin
```
Considering the happy flow, you can answer most of the questions:
- `m` (`[M]=accept/merge`)
- `o` (`[O]=ok, use package` and `[O]=ok, proceed`)
- `s` (`Enter S to ‘sudo’ install it`)
- `y` (any question that ask for a “yes”)
Now I decided not to keep it, so let’s uninstall it using UPT:
```bash
upt remove brave-bin
```
### Upgrading packages
Pacman and UPT have no information about AUR packages’ source for upgrade! Nevertheless you can use RUA itself to upgrade them:
```bash
# The following command updates all packages installed by rua
rua upgrade
```
### Safety
When building packages, RUA uses the following filesystem isolation:
- Build directory is mounted read-write.
- Files `"$GNUPGHOME"/pubring.kbx` and `"$GNUPGHOME"/pubring.gpg` are mounted read-only (if exists). This allows signature verification to work.
- The rest of `~` is not visible to the build process, mounted under `tmpfs`.
- `/tmp` and `/dev` and `/proc` are re-mounted with empty `tmpfs`, `devtmpfs` and `procfs` accordingly.
- The rest of `/` is mounted read-only.
- You can whitelist/add your mount points by configuring `wrap_args`. See example in `~/.config/rua/.system/wrap_args.sh.example`.
All builds are run in a namespace jail, with `seccomp` enabled and `user`, `ipc`, `pid`, `uts`, and `cgroup` being unshared by default.
## Conclusion
If you feel comfortable with UPT, you can use the pair UPT+RUA to manage all your packages, both official and AUR.
A list of the RUA’s full capabilities can be obtained from the command:
```bash
rua --help
``` | cacilhas |
1,802,169 | Create a Dynamic Modal using PHP and HTMX #1 | Hello Punk! This is the index #1 Create a Dynamic Modal using... | 26,941 | 2024-03-27T17:31:00 | https://darkterminal.prose.sh/Create-a%20-Dynamic-Modal-using-PHP-and-HTMX-1 | devjournal, htmx, php, webdev | Hello Punk! This is the index #1
{% embed https://dev.to/darkterminal/create-a-dynamic-modal-using-php-and-htmx-44j5 %}
Well, I am still at the point where I left before. Yes! The next part about:
## The Head Voice!
> How can I create a modal that display form to create a new supplier in my app and load the content from backend (Yes! PHP) that generate the content, also doing validation and stuff, and removing the modal after the create operation is done!.
---
After I create a the modal and displaying form with awesome CSS transition (copy & paste) from htmx docs. Then what I need is make that form work with insert action.
## The Routing #2 POST
To make the form work with backend I need to create 1 more route that handle POST request from client to server.
```php
<?php
// Filename: /home/darkterminal/workspaces/fck-htmx/routes/web.php
use Fckin\core\Application;
/** @var Application $app */
$app->router->get('suppliers/create', 'Suppliers@create');
$app->router->post('suppliers/create', 'Suppliers@create');
```
_Myself: Why you don't use match routing method? Like:_
```php
$app-router->match(['GET','POST'], 'suppliers/create', 'Suppliers@create')
```
Aaaah... I won't! If you want, create for yourself! (btw, it's not available in my `fck` PHP Framework, cz I am too egoist). Don't ask about the my `fck` PHP Framework documentation, they doesn't exists.
## The Controller #2 POST
Still in the same file, but need lil tweak! ✨
The controller before
```php
<?php
// Filename: /home/darkterminal/workspaces/fck-htmx/controllers/Suppliers.php
namespace App\controllers;
use App\config\helpers\Utils;
use App\models\Suppliers as ModelsSuppliers;
use Fckin\core\Controller;
use Fckin\core\Request;
use Fckin\core\Response;
class Suppliers extends Controller
{
protected $suppliers;
public function __construct()
{
$response = new Response();
if (!isAuthenticate()) {
$response->setStatusCode(401);
exit();
}
$this->suppliers = new ModelsSuppliers();
}
public function create(Request $request)
{
$params = []; // <-- I will do it something here when make POST request
return Utils::addComponent('suppliers/modals/modal-create', $params);
}
}
```
The controller after
```php
<?php
// Filename: /home/darkterminal/workspaces/fck-htmx/controllers/Suppliers.php
namespace App\controllers;
use App\config\helpers\Utils;
use App\models\Suppliers as ModelsSuppliers;
use Fckin\core\Controller;
use Fckin\core\Request;
use Fckin\core\Response;
class Suppliers extends Controller
{
protected $suppliers;
public function __construct()
{
$response = new Response();
if (!isAuthenticate()) {
$response->setStatusCode(401);
exit();
}
$this->suppliers = new ModelsSuppliers();
}
public function create(Request $request)
{
$params = [
'errors' => []
];
if ($request->isPost()) {
$formData = $request->getBody();
$formData['supplierCoordinate'] = empty($formData['latitude']) || empty($formData['latitude']) ? null : \implode(',', [$formData['latitude'], $formData['longitude']]);
$formData = Utils::remove_keys($formData, ['latitude', 'longitude']);
$this->suppliers->loadData($formData);
if ($this->suppliers->validate() && $this->suppliers->create($formData)) {
\header('HX-Trigger: closeModal, loadTableSupplier');
exit();
} else {
$params['errors'] = $this->suppliers->errors;
}
}
return Utils::addComponent('suppliers/modals/modal-create', $params);
}
}
```
Emmm.... deez neat! How the `App\models\Suppliers as ModelsSuppliers` look like? Did you mean the Model? Sure whatever you want! But before going further... I need to breakdown deez controller first.
```php
$this->suppliers = new ModelsSuppliers();
```
Initialized the supplier model that accessible in the entire Class Controller from the `__constructor` method. Then I modify the `$params` variable
```php
$params = [
'errors' => []
];
```
I add the `errors` key that store the error messages from validation. The validation part I will explain in the next paragraph, so the story will be inline as possible. Trust me!
```php
if ($request->isPost())
```
Check if the client request to `POST` method, if yes then collect the payload from that request using
```php
$formData = $request->getBody();
```
and store into `$formData` variable. Because I am handsome and stupid I create field for `latitude` and `longitude` separately and don't comment about the ternary `if else` statement! Pleaaaaseee....
```php
$formData['supplierCoordinate'] = empty($formData['latitude']) || empty($formData['latitude']) ? null : \implode(',', [$formData['latitude'], $formData['longitude']]);
```
So I can combine the `latitude` and `longitude` as a `supplierCoordinate` value. Then remove the `latitude` and `longitude` from `payload` cz I don't need anymore.
```php
$formData = Utils::remove_keys($formData, ['latitude', 'longitude']);
```
Also I load that `payload` into the model
```php
$this->suppliers->loadData($formData);
```
So the model can read all the payload and validate the `payload`
```php
$this->suppliers->validate()
```
In the background I have the rules for the input. They look like this:
```php
public function rules(): array
{
return [
'supplierName' => [self::RULE_REQUIRED],
'supplierCompanyName' => [self::RULE_REQUIRED],
'supplierAddress' => [self::RULE_REQUIRED],
'supplierPhoneNumber' => [self::RULE_REQUIRED],
'supplierEmail' => [self::RULE_EMAIL],
'supplierCoordinate' => []
];
}
```
If validation passed! Then create the new supplier from the `payload`
```php
$this->suppliers->create($formData)
```
If both of them is passed then send the trigger event to the client from the backend
```php
\header('HX-Trigger: closeModal, loadTableSupplier');
```
_Wait! Wait!! Wait!!! Please... tell me where what the `loadTableSupplier`?! Where is the table!_
Sorry for that... I will explain. Please be patient...
The `HX-Trigger` is the way how htmx communicate between server and client. This trigger place into the response headers. then telling the client to react on that event.
and if one of them (the validate and create) method doesn't passed then
```php
$params['errors'] = $this->suppliers->errors;
```
get the error messages to the response payload.
```php
return Utils::addComponent('suppliers/modals/modal-create', $params);
```
the `Utils::addComponent` is a glue and part of **hypermedia content** that can deliver to the client instead sending [fixed-format JSON Data APIs](https://www.infoworld.com/article/3713164/complexity-bad-an-interview-with-carson-gross.html).
## Error Validation Message
Did you remember the `Utils::getValidationError` method in my form?
```php
Utils::getValidationError($errors, 'supplierName')
```
In each form field? Yes, that the draw how server and client exchange the dynamic hypermedia content. Oh My Punk!
Whenever the `$errors` is empty the message isn't appear in that form, but if the `$errors` variable is not empty then it will display the validation message.
## Where Is The Table?
Hold on... don't look at me like that! _this is wasting my time_. I know, when you choose this topic, you willing to read this and wasting your time also.
Here is the table, but don't complain about the Tailwind Classes and everything is wide and long to read to the right side 🤣 Oh My Punk! this is funny... sorry, I regret. Cz this table is look identical with
{% embed https://dev.to/darkterminal/1-endpoint-do-5-things-for-htmx-datatable-1k57 %}
```html
<?php
use App\config\helpers\Icons;
use App\config\helpers\Utils;
$queries = [];
parse_str($suppliers['queryString'], $queries);
$currentPage = array_replace_recursive($queries, ['page' => 1, 'limit' => $suppliers['totalRows']]);
$prevPage = array_replace_recursive($queries, ['page' => $suppliers['currentPage'] - 1, 'search' => '']);
$nextPage = array_replace_recursive($queries, ['page' => $suppliers['currentPage'] + 1, 'search' => '']);
?>
<div class="overflow-x-auto" id="suppliers-table" hx-trigger="loadTableSupplier from:body" hx-get="<?= base_url('suppliers?' . http_build_query(array_merge($currentPage, ['column' => 'suppliers.updatedAt', 'limit' => 10, 'search' => '', 'order' => 'desc']))) ?>" hx-target="this" hx-swap="outerHTML">
<div class="flex absolute justify-center items-center -mt-2 -ml-2 w-full h-full rounded-lg bg-zinc-400 bg-opacity-35 -z-10 htmx-indicator" id="table-indicator"><?= Icons::use('HxIndicator', 'w-24 h-24') ?></div>
<div class="flex flex-row justify-between mb-3">
<h2 class="card-title">Suppliers</h2>
<div class="flex gap-3">
<input type="search" name="search" placeholder="Search here..." id="search" value="<?= $suppliers['search'] ?? '' ?>" class="w-80 input input-sm input-bordered focus:outline-none" hx-get="<?= base_url('suppliers?' . http_build_query(array_merge($currentPage, ['column' => 'suppliers.supplierId']))) ?>" hx-trigger="input changed delay:500ms, search" hx-swap="outerHTML" hx-target="#suppliers-table" hx-indicator="#table-indicator" autocomplete="off" />
<button class="btn btn-sm btn-neutral" hx-get="<?= base_url('suppliers/create') ?>" hx-target="body" hx-swap="beforeend" id="exclude-indicator"><?= Icons::use('Plus', 'h-4 w-4') ?>Create new</button>
</div>
</div>
<table class="table table-zebra table-sm">
<thead>
<tr>
<th <?= Utils::buildHxAttributes('suppliers', $suppliers['queryString'], 'suppliers.supplierId', $suppliers['activeColumn'], 'suppliers-table') ?>>#</th>
<th <?= Utils::buildHxAttributes('suppliers', $suppliers['queryString'], 'suppliers.supplierName', $suppliers['activeColumn'], 'suppliers-table') ?>>Supplier Name</th>
<th <?= Utils::buildHxAttributes('suppliers', $suppliers['queryString'], 'suppliers.supplierCompanyName', $suppliers['activeColumn'], 'suppliers-table') ?>>Company Name</th>
<th <?= Utils::buildHxAttributes('suppliers', $suppliers['queryString'], 'suppliers.supplierPhoneNumber', $suppliers['activeColumn'], 'suppliers-table') ?>>Phone Number</th>
<th <?= Utils::buildHxAttributes('suppliers', $suppliers['queryString'], 'suppliers.supplierAddress', $suppliers['activeColumn'], 'suppliers-table') ?>>Address</th>
<th class="cursor-not-allowed">Status</th>
<th class="cursor-not-allowed">Distance</th>
<th class="cursor-not-allowed">#</th>
</tr>
</thead>
<tbody>
<?php foreach ($suppliers['data'] as $supplier) : ?>
<tr>
<th>S#<?= $supplier->supplierId ?></th>
<td><?= $supplier->supplierName ?></td>
<td><?= $supplier->supplierCompanyName ?></td>
<td><?= $supplier->supplierPhoneNumber ?></td>
<td><?= $supplier->supplierAddress ?></td>
<td><?= $supplier->isActive ? 'Active' : 'Inactive' ?></td>
<td>
<?php
if (!empty($supplier->supplierCoordinate)) {
$supplierSource = explode(',', $supplier->supplierCoordinate);
$appSource = explode(',', '-6.444508061297425,111.01966363196293');
echo round(Utils::haversine(
[
'lat' => $supplierSource[0],
'long' => $supplierSource[1],
],
[
'lat' => $appSource[0],
'long' => $appSource[1],
]
)) . " Km";
} else {
echo "Not set";
}
?>
</td>
<td>
<div class="flex gap-2">
<button class="text-white bg-blue-600 btn btn-xs hover:bg-blue-700 tooltip tooltip-top" data-tip="View Detail" hx-get="<?= base_url('suppliers/detail/' . $supplier->supplierId) ?>" hx-target="body" hx-swap="beforeend" id="exclude-indicator"><?= Icons::use('Eye', 'h-4 w-4') ?></button>
<button class="text-white bg-green-600 btn btn-xs hover:bg-green-700 tooltip tooltip-top" data-tip="Edit Detail" hx-get="<?= base_url('suppliers/edit/' . $supplier->supplierId) ?>" hx-target="body" hx-swap="beforeend" id="exclude-indicator"><?= Icons::use('Pencil', 'h-4 w-4') ?></button>
<button class="text-white btn btn-xs <?= $supplier->isActive ? 'bg-gray-600 hover:bg-gray-700' : 'bg-blue-600 hover:bg-blue-700' ?> tooltip tooltip-top" data-tip="<?= $supplier->isActive ? 'Deactived' : 'Activated' ?>" hx-post="<?= base_url($supplier->isActive ? 'suppliers/deactivated/' : 'suppliers/activated/') . $supplier->supplierId . '?' . http_build_query(array_merge($currentPage, ['column' => 'suppliers.supplierId', 'limit' => 10, 'search' => ''])) ?>" hx-target="#suppliers-table" hx-swap="outerHTML" hx-indicator="#table-indicator" hx-confirm="Are you sure?"><?= Icons::use($supplier->isActive ? 'XCircle' : 'CheckCircle', 'h-4 w-4') ?></button>
<button class="text-white btn btn-xs <?= $supplier->isActive ? 'bg-red-600 hover:bg-red-700' : 'bg-blue-600 hover:bg-blue-700' ?> tooltip tooltip-top" data-tip="Delete" hx-delete="<?= base_url('suppliers/delete/') . $supplier->supplierId . '?' . http_build_query(array_merge($currentPage, ['column' => 'suppliers.supplierId', 'limit' => 10, 'search' => ''])) ?>" hx-target="#suppliers-table" hx-swap="outerHTML" hx-indicator="#table-indicator" hx-confirm="Are you sure want to delete <?= $supplier->supplierName ?>?"><?= Icons::use('Trash', 'h-4 w-4') ?></button>
</div>
</td>
</tr>
<?php endforeach; ?>
</tbody>
</table>
<div class="flex flex-row justify-between mt-3">
<p>
Page <span class="font-bold"><?= $suppliers['currentPage'] ?></span> from <span class="font-bold"><?= $suppliers['totalPages'] ?></span> Total <span class="font-bold"><?= $suppliers['totalRows'] ?></span> |
Jump to: <input type="number" name="pageNumber" id="pageNumber" hx-on:change="var url = '<?= base_url('suppliers?' . http_build_query(array_merge($prevPage, ['column' => 'suppliers.supplierId', 'search' => '']))) ?>';
var replacedUrl = url.replace(/page=\d+/, 'page=' + this.value);
htmx.ajax('GET', replacedUrl, {target: '#suppliers-table', swap: 'outerHTML'})" class="w-12 input input-sm input-bordered" min="1" max="<?= $suppliers['totalPages'] ?>" value="<?= $suppliers['currentPage'] ?>" hx-indicator="#table-indicator" />
Display: <select class="w-48 select select-bordered select-sm" hx-indicator="#table-indicator" hx-on:change="var url = '<?= base_url('suppliers?' . http_build_query(array_merge($prevPage, ['column' => 'suppliers.supplierId']))) ?>'
var pageNumber = parseInt('<?= $prevPage['page'] ?>') == 0 ? 1 : parseInt('<?= $prevPage['page'] ?>')
var replacedUrl = url.replace(/limit=\d+/, 'limit=' + this.value);
htmx.ajax('GET', replacedUrl.replace(/page=\d+/, 'page=' + pageNumber), {target: '#suppliers-table', swap: 'outerHTML'})
">
<option <?= $suppliers['limit'] == 10 ? 'selected' : '' ?> value="10">10 Rows</option>
<option <?= $suppliers['limit'] == 20 ? 'selected' : '' ?> value="20">20 Rows</option>
<option <?= $suppliers['limit'] == 30 ? 'selected' : '' ?> value="30">30 Rows</option>
<option <?= $suppliers['limit'] == 40 ? 'selected' : '' ?> value="40">40 Rows</option>
<option <?= $suppliers['limit'] == 50 ? 'selected' : '' ?> value="50">50 Rows</option>
</select>
</p>
<div class="join">
<button class="join-item btn btn-sm" <?= Utils::hxPagination('suppliers', http_build_query(array_merge($prevPage, ['column' => 'suppliers.supplierId'])), 'suppliers-table') ?> <?= ($suppliers['currentPage'] <= 1) ? 'disabled' : '' ?>>«</button>
<button class="join-item btn btn-sm">Page <?= $suppliers['currentPage'] ?></button>
<button class="join-item btn btn-sm" <?= Utils::hxPagination('suppliers', http_build_query(array_merge($nextPage, ['column' => 'suppliers.supplierId'])), 'suppliers-table') ?> <?= $suppliers['currentPage'] >= $suppliers['totalPages'] ? 'disabled' : '' ?>>»</button>
</div>
</div>
</div>
```
In that table what I want to highlight is just the first div!
```html
<div
class="overflow-x-auto"
id="suppliers-table"
hx-trigger="loadTableSupplier from:body"
hx-get="<?= base_url('suppliers?' . http_build_query(array_merge($currentPage, ['column' => 'suppliers.updatedAt', 'limit' => 10, 'search' => '', 'order' => 'desc']))) ?>"
hx-target="this"
hx-swap="outerHTML"
>
```
🤣 Yes! The `hx` attributes:
- `hx-trigger="loadTableSupplier from:body"` is responsible to receive the `loadTableSupplier` event that sent from the server and come to the client page `from:body`
- then the `hx-get` with their long value that really mess up! But the `hx-get` will get the latest content from server
- and the `hx-target` will placed the content to the element
- and the `hx-swap` will replace the entire div with the latest content also display the new supplier inside
🤯 Boom!!!
## The Model
The model look pretty clean... and I hate it so much cz I forgot how it's work!
> Simple things sometime make me blind. But in the chaotic things, I see the pattern. _.darkterminal_
```php
<?php
namespace App\models;
use Fckin\core\db\Model;
class Suppliers extends Model
{
public string $supplierName;
public string $supplierCompanyName;
public string $supplierAddress;
public string $supplierPhoneNumber;
public string|null $supplierEmail;
public string|null $supplierCoordinate;
public string $tableName = 'suppliers';
public function rules(): array
{
return [
'supplierName' => [self::RULE_REQUIRED],
'supplierCompanyName' => [self::RULE_REQUIRED],
'supplierAddress' => [self::RULE_REQUIRED],
'supplierPhoneNumber' => [self::RULE_REQUIRED],
'supplierEmail' => [self::RULE_EMAIL],
'supplierCoordinate' => []
];
}
public function create(array $data): bool
{
$created = $this->table($this->tableName)->insert($data);
return $created > 0 ? true : false;
}
}
```
You can look at `thc-fck` core of my PHP Framework about the [`Fckin\core\db\Model`](https://github.com/darkterminal/the-fck/blob/main/core/db/Model.php). That's it!
😊 Sorry for wasting your time... | darkterminal |
1,802,670 | Lamucal: An AI-powered music generation tool for creating tabs, chords, lyrics, and melodies. | https://lamucal.ai Use Cases Music Transcription Lyric Synchronization Musical Exploration Chord... | 0 | 2024-03-27T04:29:54 | https://dev.to/audioflux/lamucal-an-ai-powered-music-generation-tool-for-creating-tabs-chords-lyrics-and-melodies-c8n | javascript, beginners, ai, discuss | [https://lamucal.ai](https://lamucal.ai)
**Use Cases**
- Music Transcription
- Lyric Synchronization
- Musical Exploration
- Chord Matching
**Feature Highlights**
1. AI-Enhanced Music Generation: Swiftly transforms music from sources into playable chords.
2. Lyric Synchronization: Ensures lyrics align perfectly with music.
3. Interactive Learning Feature: Ideal for musicians to play along with instruments.
4. Broad Song Selection: Access over 40 million songs for musical learning and enjoyment.
| audioflux |
1,802,730 | Choosing the Right Digital Note-Taking App: A Comparison of Popular Note-Taking Apps and Their AI Features | In the ever-evolving landscape of digital note-taking, artificial intelligence (AI) is reshaping how... | 0 | 2024-03-27T05:29:12 | https://dev.to/charudatta10/choosing-the-right-digital-note-taking-app-a-comparison-of-popular-note-taking-apps-and-their-ai-features-5b8k | ai, notetaking, beginners, productivity |
In the ever-evolving landscape of digital note-taking, artificial intelligence (AI) is reshaping how we capture, organize, and leverage information. Whether you're a student, professional, or creative thinker, selecting the right note-taking app can significantly impact your productivity. Let's explore some popular options and their AI capabilities:
1. **Albus**:
**Best for Brainstorming**: Albus takes a unique approach by offering an infinite canvas for generating sticky notes. Powered by ChatGPT AI prompts, it encourages free-form brainstorming. You can explore AI-generated suggestions, ask follow-up questions, and create a visual board of interconnected ideas. Plus, it's free during its open beta phase³.
1. **Mem**:
**Best for Teams**: Mem caters to collaborative note-taking. Its AI features enhance team productivity. Define a topic, and Mem generates related content and ideas. Collaborate seamlessly with colleagues, brainstorm collectively, and explore AI-driven insights. The paid version unlocks collaboration and AI functionality³.
1. **Notion AI**:
**Versatile and Customizable**: Notion combines note-taking, databases, and project management. Its AI capabilities include smart search, content recommendations, and context-aware suggestions. Customize your workspace, create templates, and let AI assist you in organizing and retrieving information¹.
1. **Microsoft Copilot** (Windows 11):
**Your AI Assistant**: Copilot integrates with Windows 11, offering real-time assistance. While it's not a dedicated note-taking app, it can help summarize, expand, and find related notes. Use it for brainstorming, research, or connecting dots. Remember to fact-check any information provided by the AI³.
1. **Reflect**:
**AI-Driven Insights**: Reflect analyzes your notes, identifies patterns, and provides insights. It suggests relevant content, helping you connect ideas effortlessly. Whether you're a student, writer, or researcher, Reflect's AI-enhanced note-taking streamlines your workflow⁴.
1. **Otter.ai**:
**Voice-to-Text Transcription**: Otter.ai transcribes spoken words into text. Perfect for meetings, interviews, or lectures, it leverages AI for accurate voice recognition. Searchable transcripts and speaker identification make it a powerful tool for capturing spoken content¹.
Remember that AI note-taking tools are still evolving, and human verification remains essential. Choose an app that aligns with your specific needs, whether it's brainstorming, collaboration, or content creation. The future of note-taking is AI-assisted, so embrace the possibilities and find the perfect fit for your digital workspace.
Source:
(1) The Best AI Tools for Taking Notes | PCMag. https://www.pcmag.com/picks/best-ai-tools-taking-notes.
(2) Top 6 AI tools for accurate meeting notes | Switchboard. https://www.switchboard.app/learn/article/ai-meeting-notes.
(3) 25 Best AI Note Taking Apps, Tools & Software 2023 (Free & Paid). https://www.waytochanges.com/best-ai-note-taking-apps/.
(4) https://bing.com/search?q=Choosing+the+Right+Digital+Note-Taking+App+AI+features.
(5) 15 AI Note-Taking Apps Guaranteed to Change Your Life. https://www.goodnotes.com/blog/ai-note-taking-apps.
(6) undefined. https://clickup.com/blog/ai-tools-for-note-taking/. | charudatta10 |
1,802,902 | Free Random Quotes API - WhollyAPI | Get Random Quotes from Quotable is a free, open source quotations API. | 0 | 2024-03-27T09:55:05 | https://sh20raj.gitbook.io/whollyapi/data/random-quotes | whollyapi | ---
description: Get Random Quotes from Quotable is a free, open source quotations API.
---
> https://codexdindia.blogspot.com/
> https://sh20raj.gitbook.io/whollyapi
> https://sh20raj.gitbook.io/whollyapi/data/random-quotes
# 💡 Random Quotes
## Quotable -
{% github https://github.com/lukePeavey/quotable %}
[](https://github.com/lukePeavey/quotable/actions/workflows/tests.yml)  
Quotable is a free, open source quotations API. It was originally built as part of a [FreeCodeCamp](https://www.freecodecamp.org/) project. If you are interested in contributing, please check out the Contributors Guide.
#### Rate Limit
There is a rate limit of **180 requests per minute**, per IP address. If you exceed the rate limit, the API will respond with a `429` error.
#### API Servers
```
https://api.quotable.io
```
#### Postman
You can try out the API on our public Postman workspace.
[](https://www.postman.com/quotable/workspace/quotable)
### API Reference
* Get random quote
* Get Random Quotes
* List Quotes
* Get Quote By ID
* List Authors
* Search Quotes (beta)
* Search Authors (beta)
* Get Author By Slug
* List Tags
### Examples
* [Basic Quote Machine (CodePen)](https://codepen.io/lukePeavey/pen/RwNVeQG)
* [React Quote Machine (CodeSandbox)](https://codesandbox.io/s/quotable-demo-react-e7zm1?fontsize=14\&hidenavigation=1\&module=%2Fsrc%2FApp.js\&theme=dark)
* [React Native App (Github)](https://github.com/siddsarkar/SociQuote)
* [Paginated Author List (codeSandbox)](https://codesandbox.io/s/quotable-author-list-2-14le9)
* [Paginated Quote List (codeSandbox)](https://codesandbox.io/s/quotable-get-quotes-with-author-details-iyxw8)
### Get random quote
```HTTP
GET /random
```
Returns a single random quote from the database
> ⛔️ This method is deprecated in favor of Get Random Quotes
**Query parameters**
| param | type | Description |
| --------- | -------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| maxLength | `Int` | The maximum Length in characters ( can be combined with `minLength` ) |
| minLength | `Int` | The minimum Length in characters ( can be combined with `maxLength` ) |
| tags | `String` | Get a random quote with specific tag(s). This takes a list of one or more tag names, separated by a comma (meaning `AND`) or a pipe (meaning `OR`). A comma separated list will match quotes that have _**all**_ of the given tags. While a pipe (`\|`) separated list will match quotes that have **any one** of the provided tags. Tag names are **not** case-sensitive. Multi-word tags can be kebab-case ("tag-name") or space separated ("tag name") |
| author | `String` | Get a random quote by one or more authors. The value can be an author `name` or `slug`. To include quotes by multiple authors, provide a pipe-separated list of author names/slugs. |
| authorId | `String` | <p><code>deprecated</code><br>Same as <code>author</code> param, except it uses author <code>_id</code> instead of <code>slug</code></p> |
**Response**
```ts
{
_id: string
// The quotation text
content: string
// The full name of the author
author: string
// The `slug` of the quote author
authorSlug: string
// The length of quote (number of characters)
length: number
// An array of tag names for this quote
tags: string[]
}
```
\
### Get Random Quotes
```HTTP
GET /quotes/random
```
Get one or more random quotes from the database. This method supports several filters that can be used to get random quotes with specific properties (ie tags, quote length, etc.)
By default, this methods returns a single random quote. You can specify the number of random quotes to return via the `limit` parameter.
> ⚠️ This method is equivalent to the `/random` endpoint. The only difference is the response format: Instead of retuning a single `Quote` object, this method returns an `Array` of `Quote` objects.
\
| param | type | Description |
| --------- | -------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| limit | `Int` | <p><code>default: 1</code> <code>min: 1</code> <code>max: 50</code><br>The number of random quotes to retrieve.</p> |
| maxLength | `Int` | The maximum Length in characters ( can be combined with `minLength` ) |
| minLength | `Int` | The minimum Length in characters ( can be combined with `maxLength` ) |
| tags | `String` | Get a random quote with specific tag(s). This takes a list of one or more tag names, separated by a comma (meaning `AND`) or a pipe (meaning `OR`). A comma separated list will match quotes that have _**all**_ of the given tags. While a pipe (`\|`) separated list will match quotes that have **any one** of the provided tags. Tag names are **not** case-sensitive. Multi-word tags can be kebab-case ("tag-name") or space separated ("tag name") |
| author | `String` | Get a random quote by one or more authors. The value can be an author `name` or `slug`. To include quotes by multiple authors, provide a pipe-separated list of author names/slugs. |
| authorId | `String` | <p><code>deprecated</code><br>Same as <code>author</code> param, except it uses author <code>_id</code> instead of <code>slug</code></p> |
**Response**
```ts
// An array containing one or more Quotes
Array<{
_id: string
// The quotation text
content: string
// The full name of the author
author: string
// The `slug` of the quote author
authorSlug: string
// The length of quote (number of characters)
length: number
// An array of tag names for this quote
tags: string[]
}>
```
**Examples**
Get random quote [try in browser](https://api.quotable.io/quotes/random)
```HTTP
GET /quotes/random
```
Get 5 random quotes [try in browser](https://api.quotable.io/quotes/random?limit=3)
```HTTP
GET /quotes/random?limit=3
```
Random Quote with tags "technology" **`AND`** "famous-quotes" [try in browser](https://api.quotable.io/quotes/random?tags=technology,famous-quotes)
```HTTP
GET /quotes/random?tags=technology,famous-quotes
```
Random Quote with tags "History" **`OR`** "Civil Rights" [try in browser](https://api.quotable.io/quotes/random?tags=history|civil-rights)
```HTTP
GET /quotes/random?tags=history|civil-rights
```
Random Quote with a maximum length of 50 characters [try in browser](https://api.quotable.io/quotes/random?maxLength=50)
```HTTP
GET /quotes/random?maxLength=50
```
Random Quote with a length between 100 and 140 characters [try in browser](https://api.quotable.io/quotes/random?minLength=100\&maxLength=140)
```HTTP
GET /quotes/random?minLength=100&maxLength=140
```
\
### List Quotes
```HTTP
GET /quotes
```
Get all quotes matching a given query. By default, this will return a paginated list of all quotes, sorted by `_id`. Quotes can also be filter by author, tag, and length.
**Query parameters**
| param | type | Description |
| --------- | -------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| maxLength | `Int` | The maximum Length in characters ( can be combined with `minLength` ) |
| minLength | `Int` | The minimum Length in characters ( can be combined with `maxLength` ) |
| tags | `String` | Filter quotes by tag(s). Takes a list of one or more tag names, separated by a comma (meaning `AND`) or a pipe (meaning `OR`). A comma separated list will match quotes that have _**all**_ of the given tags. While a pipe (`\|`) separated list will match quotes that have _**either**_ of the provided tags. Tag names are **not** case-sensitive. Multi-word tags can be kebab-case ("tag-name") or space separated ("tag name") |
| author | `String` | Get quotes by a specific author. The value can be an author `name` or `slug`. To get quotes by multiple authors, provide a pipe separated list of author names/slugs. |
| authorId | `String` | <p><code>deprecated</code><br>Same as <code>author</code> param, except it uses author <code>_id</code> instead of <code>slug</code></p> |
| sortBy | `enum` | <p><code>Default: "dateAdded"</code> <code>values: "dateAdded", "dateModified", "author", "content"</code><br>The field used to sort quotes</p> |
| order | `enum` | <p><code>values: "asc", "desc"</code> <code>default: depends on sortBy</code><br>The order in which results are sorted. The default order depends on the sortBy field. For string fields that are sorted alphabetically, the default order is ascending. For number and date fields, the default order is descending.</p> |
| limit | `Int` | <p><code>Min: 1</code> <code>Max: 150</code> <code>Default: 20</code><br>Sets the number of results per page.</p> |
| page | `Int` | <p><code>Min: 1</code> <code>Default: 1</code><br>The page of results to return. If the value is greater than the total number of pages, request will not return any results</p> |
**Response**
```ts
{
// The number of quotes returned in this response
count: number
// The total number of quotes matching this query
totalCount: number
// The current page number
page: number
// The total number of pages matching this request
totalPages: number
// The 1-based index of the last result included in the current response.
lastItemIndex: number
// The array of quotes
results: Array<{
_id: string
// The quotation text
content: string
// The full name of the author
author: string
// The `slug` of the quote author
authorSlug: string
// The length of quote (number of characters)
length: number
// An array of tag names for this quote
tags: string[]
}>
}
```
**Examples**
Get the first page of quotes, with 20 results per page [try in browser](https://api.quotable.io/quotes?page=1)
```HTTP
GET /quotes?page=1
```
Get the second page of quotes, with 20 results per page [try in browser](https://api.quotable.io/quotes?page=2)
```HTTP
GET /quotes?page=2
```
Get all quotes with the tags `love` `OR` `happiness` [try in browser](https://api.quotable.io/quotes?tags=love|happiness)
```HTTP
GET /quotes?tags=love|happiness
```
Get all quotes with the tags `technology` `AND` `famous-quotes` [try in browser](https://api.quotable.io/quotes?tags=technology,famous-quotes)
```HTTP
GET /quotes?tags=technology,famous-quotes
```
Get all quotes by author, using the author's `slug`. [try in browser](https://api.quotable.io/quotes?author=albert-einstein)
```HTTP
GET /quotes?author=albert-einstein
```
\
### Get Quote By ID
```HTTP
GET /quotes/:id
```
Get a quote by its ID
**Response**
```ts
{
_id: string
// The quotation text
content: string
// The full name of the author
author: string
// The length of quote (number of characters)
length: number
// An array of tag names for this quote
tags: string[]
}
```
\
### List Authors
```HTTP
GET /authors
```
Get all authors matching the given query. This endpoint can be used to list authors, with several options for sorting and filter. It can also be used to get author details for one or more specific authors, using the author slug or ids.
**Query parameters**
| param | type | Description |
| ------ | -------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
| slug | `string` | Filter authors by slug. The value can be one or more author slugs. To get multiple authors by slug, the value should be a pipe separated list of slugs. |
| sortBy | `enum` | <p><code>Default: "name"</code> <code>values: "dateAdded", "dateModified", "name", "quoteCount"</code><br>The field used to sort authors.</p> |
| order | `enum` | <p><code>values: "asc", "desc"</code><br>The order in which results are sorted. The default order depends on the sortBy field. For string fields that are sorted alphabetically (ie <code>name</code>), the default order is ascending. For number and date fields (ie <code>quoteCount</code>) the default order is descending.</p> |
| limit | `Int` | <p><code>Min: 1</code> <code>Max: 150</code> <code>Default: 20</code><br>Sets the number of results per page.</p> |
| page | `Int` | <p><code>Min: 1</code> <code>Default: 1</code><br>The page of results to return. If the value is greater than the total number of pages, request will not return any results</p> |
**Response**
```ts
{
// The number of results included in this response.
count: number
// The total number of results matching this request.
totalCount: number
// The current page number
page: number
// The total number of pages matching this request
totalPages: number
// The 1-based index of the last result included in this response. This shows the
// current pagination offset.
lastItemIndex: number | null
// The array of authors
results: Array<{
// A unique id for this author
_id: string
// A brief, one paragraph bio of the author. Source: wiki API
bio: string
// A one-line description of the author. Typically it is the person's primary
// occupation or what they are know for.
description: string
// The link to the author's wikipedia page or official website
link: string
// The authors full name
name: string
// A slug is a URL-friendly ID derived from the authors name. It can be used as
slug: string
// The number of quotes by this author
quoteCount: string
}>
}
```
**Examples**
Get all authors, sorted alphabetically by name [try in browser](https://api.quotable.io/authors?sortBy=name\&order=asc)
```HTTP
GET /authors?sortBy=name
```
Get all authors, sorted by number of quotes in descending order [try in browser](https://api.quotable.io/authors?sortBy=quoteCount\&order=desc)
```HTTP
GET /authors?sortBy=quoteCount&order=desc
```
Get a single author by slug. [try in browser](https://api.quotable.io/authors?slug=albert-einstein)
```HTTP
GET /authors?slug=albert-einstein
```
Get multiple authors by slug. In this case, you provide a pipe-separated list of slugs [try in browser](https://api.quotable.io/authors?slug=albert-einstein|abraham-lincoln)
```HTTP
GET /authors?slug=albert-einstein|abraham-lincoln
```
\
### Search Quotes (beta)
```HTTP
GET /search/quotes
```
This endpoint allows you to search for quotes by keywords, content, and/or author name. Unlike the List Quotes endpoint, this method is powered by [Atlas Search](https://docs.atlas.mongodb.com/atlas-search/) and is designed to power a search bar UI.
* Search results are sorted by score
* The query can be wrapped in quotes to search for an exact phrase. In this case, results will only include quotes that match the query exactly.
* Supports fuzzy search (optional). This allows for minor typos and misspelling in the search query. For more info on how this works, refer to the [Atlas docs](https://docs.atlas.mongodb.com/reference/atlas-search/text/#fields)
**Query Params**
| Param | Type | Description |
| ------------------ | -------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| query | `String` | The search string. The query can be wrapped in quotes to search for an exact phrase. |
| fields | `String` | <p><code>Default: "content,author,tags"</code><br>Specify the fields to search by. This takes a comma separated list of field names. Supported search fields are "content", "author", "tags". By default, it will search by all fields simultaneously.</p> |
| fuzzyMaxEdits | `Int` | <p><code>Min: 0</code> <code>Max: 2</code> <code>Default: 0</code><br>The maximum number of single-character edits required to match the specified search term. Setting this to zero disables fuzzy matching.</p> |
| fuzzyMaxExpansions | `Int` | <p><code>Max: 150</code> <code>Min: 0</code> <code>Default: 50</code><br>When fuzzy search is enabled, this is the maximum number of variations to generate and search for. This limit applies on a per-token basis.</p> |
| limit | `Int` | <p><code>Min: 0</code> <code>Max: 150</code> <code>Default: 20</code><br>The maximum number of results per page</p> |
| page | `Int` | <p><code>Min: 1</code> <code>Default: 1</code><br>Sets the page number for pagination</p> |
**Response**
```ts
{
// The number of results included in this response.
count: number
// The total number of results matching this request.
totalCount: number
// The current page number
page: number
// The total number of pages matching this request
totalPages: number
// The 1-based index of the last result included in this response. This shows the
// current pagination offset.
lastItemIndex: number | null
// The array of authors
results: Array<{
// A unique id for this author
_id: string
// A brief, one paragraph bio of the author. Source: wiki API
bio: string
// A one-line description of the author. Typically it is the person's primary
// occupation or what they are know for.
description: string
// The link to the author's wikipedia page or official website
link: string
// The authors full name
name: string
// A slug is a URL-friendly ID derived from the authors name. It can be used as
slug: string
// The number of quotes by this author
quoteCount: string
}>
}
```
**Examples**
Search for "every good technology is basically magic" ([try in browser](https://api.quotable.io/search/quotes?query=every+good+technology+is+basically+magic\&fields=content))
```HTTP
GET /search/quotes?query=every good technology is basically magic
```
> Results:
>
> * "Any sufficiently advanced technology is equivalent to magic."
Search for the phrase "divided house"
```HTTP
GET /search/quotes?query=divided house
```
> Results
>
> * "A house divided against itself cannot stand."
Search for quotes with the keywords "life" or "happiness" ([try in browser](https://api.quotable.io/search/quotes?query=life+happiness))
```HTTP
GET /search/quotes?query=life happiness
```
Search for quotes by an author named "kennedy" ([try in browser](https://api.quotable.io/search/quotes?query=kennedy\&fields=author))
```HTTP
GET /search/quotes?query=Kennedy&fields=author
```
\
### Search Authors (beta)
```HTTP
GET /search/authors
```
This endpoint allows you search for authors by name. It is designed to power a search bar for authors that displays autocomplete suggests as the user types.
* Powered by [Atlas Search](https://docs.atlas.mongodb.com/atlas-search/).
* Real autocomplete
* Results are sorted by score
* Parses the query into "terms". Things like initials, prefixes, suffixes, and stopwords are not considered search terms. They will still impact the score of a result, but are not required to match.
```
Example
query="John F. Kennedy"
terms=["john", "kennedy"]
term term
| |
John F. Kennedy Jr.
| |
initial suffix
Example
query="Saint Augustine of Hippo"
terms=["Augustine", "Hippo"]
term term
| |
Saint Augustine of Hippo
| |
prefix stopword
```
**Query Parameters**
| Param | Type | Description |
| -------------- | --------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| query | `String` | The search query |
| autocomplete | `Boolean` | <p><code>default: true</code><br>Enables autocomplete matching</p> |
| matchThreshold | `Int` | <p><code>Min: 1</code> <code>Max: 3</code> <code>Default: 2</code><br>Sets the minimum number of search terms (words) that must match for an author to be included in results. Basically, if this is set to 1, the results will include all authors that match at least one part of the name. So query="John F. Kennedy" the results would include all authors that match either "john" <code>OR</code> "kennedy".<br>If this is set to <code>2</code>: when the search query includes two or more "terms", at least two of those terms must match. So query="John F. Kennedy" would only return authors that match "John" <code>AND</code> "Kennedy".</p> |
| limit | `Int` | <p><code>Min:</code> <code>Max: 150</code> <code>Default: 20</code><br>Maximum number of results per page</p> |
| page | `Int` | <p><code>Min: 1</code> <code>Default: 1</code><br>Sets the page number for pagination</p> |
**Response**
```ts
{
// The number of results included in this response.
count: number
// The total number of results matching this request.
totalCount: number
// The current page number
page: number
// The total number of pages matching this request
totalPages: number
// The 1-based index of the last result included in this response. This shows the
// current pagination offset.
lastItemIndex: number | null
// The array of authors
results: Array<{
// A unique id for this author
_id: string
// A brief, one paragraph bio of the author. Source: wiki API
bio: string
// A one-line description of the author. Typically it is the person's primary
// occupation or what they are know for.
description: string
// The link to the author's wikipedia page or official website
link: string
// The authors full name
name: string
// A slug is a URL-friendly ID derived from the authors name. It can be used as
slug: string
// The number of quotes by this author
quoteCount: string
}>
}
```
**Examples**
Search for author named "Einstein" ([try in browser](https://api.quotable.io/search/authors?query=einstein))
```HTTP
GET /search/authors?query=Einstein
```
> Results:
>
> * Albert Einstein
Autocomplete search for "Einstein" ([try in browser](https://api.quotable.io/search/authors?query=Einst))
```HTTP
GET /search/authors?query=Einst
```
> Results:
>
> * Albert Einstein
Search for "John Adams" ([try in browser](https://api.quotable.io/search/authors?query=john+adams))
```HTTP
GET /search/authors?query=john adams
```
> Results
>
> * John Adams
> * John Quincy Adams
Search for "John Quincy Adams" ([try in browser](https://api.quotable.io/search/authors?query=john+quincy+adams))
```HTTP
GET /search/authors?query=john quincy adams
```
> Results:
>
> * John Quincy Adams)
> * John Adams
\
### Get Author By Slug
Get a _single_ `Author` by `slug`. This method can be used to get author details such as bio, website link, and profile image.
If you want to get all _quotes_ by a specific author, use the /quotes endpoint and filter by author author name/slug.
If you want to get _multiple_ authors by slug in a single request, use the /authors endpoint and filter by `slug`.
```HTTP
GET /authors/:id
```
**Response**
```ts
{
// A unique id for this author
_id: string
// A brief, one paragraph bio of the author. Source wiki API.
bio: string
// A one-line description of the author.
description: string
// The link to the author's wikipedia page or official website
link: string
// The authors full name
name: string
// A slug is a URL-friendly ID derived from the authors name. It can be used as
slug: string
// The number of quotes by this author
quoteCount: string
}
```
\
### List Tags
```HTTP
GET /tags
```
Get a list of all tags
**Query parameters**
| param | type | Description |
| ------ | ------ | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| sortBy | `enum` | <p><code>Default: "name"</code> <code>values: "dateAdded", "dateModified", "name", "quoteCount"</code><br>The field used to sort tags.</p> |
| order | `enum` | <p><code>values: "asc", "desc"</code><br>The order in which results are sorted. The default order depends on the sortBy field. For string fields that are sorted alphabetically, the default order is ascending. For number and date fields, the default order is descending.</p> |
**Response**
```ts
{
// The number of all tags by this request
count: number
// The array of tags
results: Array<{
_id: string
name: string
}>
}
```
| sh20raj |
1,803,326 | Upcoming Binance listing: Top 5 performing cryptos to monitor in 2024 | Binance is capitalizing on the bullish market trend in 2024 by incorporating many new tokens on its... | 0 | 2024-03-29T09:07:22 | https://blog.spheron.network/upcoming-binance-listing-top-5-performing-cryptos-to-monitor-in-2024 | crypto, binance, web3, spheron | ---
title: Upcoming Binance listing: Top 5 performing cryptos to monitor in 2024
published: true
date: 2024-03-25 18:30:00 UTC
tags: crypto, binance, web3, spheron
canonical_url: https://blog.spheron.network/upcoming-binance-listing-top-5-performing-cryptos-to-monitor-in-2024
---
Binance is capitalizing on the bullish market trend in 2024 by incorporating many new tokens on its exchange. This strategic move enables the leading crypto exchange to leverage the escalated trading volume. Binance has listed many meme coins such as $MYRO and $WIF, launched DePIN projects like $FIL, and integrated digital asset management in gaming projects like $PORTAL.
With the listing spree in full swing, it is imperative to monitor the top-performing cryptocurrencies that have the potential to be listed on Binance.
## **1. Smog Token**
[Smog Token ($SMOG)](https://smogtoken.com/en) ticks all the boxes Binance would look for in a potential listing opportunity. It boasts a massive community, an enormous trading volume, and a tremendous buzz behind it, making it one of the most talked-about projects in the industry. The upcoming airdrop event, touted as the biggest in Solana's history, is already generating a lot of excitement. To participate in the event, users must buy and hold $SMOG tokens and accumulate airdrop points. The project also runs a Zealy campaign, where users can earn more airdrop points by completing specific quests, such as joining the community discussion. With over a million quests already completed, it's evident that many people are eager to get their hands on this upcoming airdrop.
The team has set aside 35% of the tokens to facilitate the airdrop event. Considering the $300 market cap level, over $100 million will be distributed to $SMOG holders. The project's multi-chain presence on Ethereum and Solana makes it even more attractive. The best place to buy $SMOG is OTC through the project's website, which offers a 10% discount. Smog Token is worth considering if you're looking for a promising investment opportunity.
## **2. Sponge Token**
[Sponge Token ($SPONGE)](https://spongetoken.vip/en) is a project that has already achieved tremendous success in 2023 and is back in 2024 to replicate the same 100x ride it offered to its early adopters. Its presale in May 2023 made it a trending topic by providing 100x returns to traders who bought it. Sponge Token has announced its next incarnation through a powerful V2 upgrade, which is set to make the token bigger and better than ever before.
The project is implementing a unique stake-to-bridge utility for the upgrade, which requires users to lock $SPONGE V1 into a bridge to receive an equivalent of $SPONGE V2 following the upgrade. All $SPONGE V1 sent to the bridge will be permanently locked to facilitate the move to V2.
The team is introducing various new features after the upgrade, such as a fun and addictive play-to-earn arcade, to add more utility to the project. With listings on the top ten exchanges, $SPONGE is a strong contender for an upcoming Binance listing in the meme coin space. Overall, Sponge Token is a project that has already proved its worth and is poised to take the cryptocurrency market by storm once again.
## **3. Scotty, the AI**
[$SCOTTY](https://scottytheai.com/en) is a must-watch cryptocurrency with an upcoming potential Binance listing. It stands out from other meme coins due to its unique AI integration, which provides valuable tools to the community. To establish itself as a trusted figure in the blockchain space, Scotty, the AI, is set to deliver a suite of AI-powered products that can significantly advance traders' perceptions of security, fraud detection, and risk mitigation.
Scotty Swap is one such product that offers seamless token swaps. Its AI integration ensures that every trade is optimized for maximum gains. Additionally, the DEX provides advanced trading features like limit orders, enabling traders to set orders beforehand.
Scotty Chat is another AI-powered product that provides in-depth market analysis and insights. It allows traders to remain alert and formulate industry trends and narratives.
## **4. Dogecoin20 ($DOGE20)**
[Dogecoin20 ($DOGE20)](https://dogecoin.com/) is undoubtedly among the hottest and most promising meme coins. It raised an incredible $2 million in just four hours after going live, proving the immense hype around it. Its ultimate goal is to upgrade Elon Musk's favorite meme coin, Dogecoin, and take it to a sustainable future by introducing the proof-of-stake mining algorithm. By staking their tokens and earning a passive income, $DOGE20 holders are incentivized to hold onto their tokens for the long term. The team has allocated 15% of the total $DOGE20 supply to reward staking over the next two years.
In addition, $DOGE20 is an anti-inflationary token with a limited 140 billion token supply, which eliminates Dogecoin's infinite inflation problem. With all these features, $DOGE20 is poised to become a leader in the Doge-related meme coin space and is undoubtedly one of the most sought-after potential listings on Binance.
## **5. Green Bitcoin**
[Green Bitcoin ($GBTC)](https://greenbitcoin.xyz/en) is an absolute must-watch among cryptocurrencies! Industry experts predict that a Binance listing is imminent due to its unique supply dynamics, which could cause a significant supply shock on the open market and propel prices to new heights. Green Bitcoin's predict-to-earn ecosystem allows users to earn massive rewards based on their level of investment and accurate forecasts of Bitcoin's future price.
To be eligible to make a price forecast, users must stake their $GBTC tokens in the project's innovative gamified green staking ecosystem. This ecosystem's primary goal is to encourage blockchain activity rather than promote speculative trading of meme coins. Consequently, most of the $GBTC could be locked in the staking system, leading to a considerable supply shock in the market. This could increase prices for new investors purchasing $GBTC following its presale.
The best part is that you can easily purchase $GBTC on the project's website using $ETH, $USDT, or a credit/debit card. So, don't miss out on the opportunity to invest in this exceptional cryptocurrency!
## When Does Binance Make New Listing Announcements?
It is important to note that all upcoming Binance listings are ONLY announced on the Binance website under the [New Cryptocurrency Listing page](https://www.binance.com/en/support/announcement/new-cryptocurrency-listing). It is crucial to understand that Binance can only announce new listings. If you come across a project claiming to have been listed but not on the Binance listing page, its misinformation.
[](https://www.binance.com/en/support/announcement/new-cryptocurrency-listing)
Furthermore, after analyzing the Binance listings page, it is evident that there are only a small handful of new additions every month. This makes it challenging to predict which coins will be listed on Binance next. Additionally, Binance is happy to list many project types, including trending meme coins and layer 2 protocols. For example, it has recently listed coins such as Dog Wif Hat and BOOK OF MEME, and protocols such as Starknet and Metis. Therefore, it is imperative to keep an eye on the Binance listing page to stay updated on the latest listings and avoid falling prey to fake news or false claims.
# **Should You Invest in New Upcoming Binance Listings?**
Investing in upcoming Binance listings is a popular crypto trading strategy. Many crypto projects seek to be listed on Binance, the largest crypto exchange globally, as it provides immense exposure and liquidity. When Binance announces a new listing, it can lead to a significant price rally, making it an attractive opportunity for investors. However, it's essential to approach this strategy with caution and do your own research.
## **Why Are Binance Listings Important?**
Binance has over 182 million users, making it the most widely used crypto exchange globally. Its large user base and high trading volumes provide a massive audience for crypto projects, increasing their visibility and potential for growth. Additionally, Binance's stamp of approval can give a project credibility and legitimacy, leading to increased investor confidence.
[](https://www.binance.com/en-IN/support/announcement)
## **How to Find the Next Binance Listings?**
The best way to find out about upcoming Binance listings is to watch the official Binance website. Listing announcements are made exclusively on the Binance website, so checking there directly is essential instead of relying on secondary sources. Be wary of false information from crypto projects trying to manipulate their prices. Always do your own research and due diligence before investing in any project.
## **The 'Binance Effect'**
When Binance announces a new listing, it can lead to a significant price increase, known as the 'Binance Effect.' According to a [study by Ren & Heinrich](https://medium.com/coinmonks/analysis-a-binance-listing-adds-41-on-crypto-prices-2f6cd72e8dff), the average price increase on the first day of the listing announcement is 41%, while the average increase within 30 days is 73%. However, not all listings result in growth, and some may have no impact. Timing is everything, and it's crucial to act quickly once a listing is announced to maximize gains. | spheronstaff |
1,803,486 | How to return to parent tab when modal popup closes | I created a razor page in a blazor server app. It page containes 5 tabs to display different kind of... | 0 | 2024-03-27T19:42:13 | https://dev.to/fahmedn/how-to-return-to-parent-tab-when-modal-popup-closes-503e | I created a razor page in a blazor server app. It page containes 5 tabs to display different kind of data from the database. I open tab-2 which containes a button "Add". When I click on the button "Add" it displays a popup (bootstrap 5.3). When modal closes, it returns to tab-1 of the page. I want to keep the tab-2 active when modal popup closes. How can I do this? | fahmedn | |
1,808,001 | Switching to binary data transfer has never been easier for DART developers. | Introducing Protocol Buffers (Proto) offer substantial advantages over JSON and XML. They... | 0 | 2024-04-01T14:58:07 | https://dev.to/awesome-t/switching-to-binary-data-transfer-has-never-been-easier-for-dart-developers-8n4 | dart, flutter, websocket, api | ## **Introducing**
Protocol Buffers (Proto) offer substantial advantages over JSON and XML. They present a more condensed data representation, shrinking message size by up to 5 times compared to JSON. Furthermore, Proto excels in serialization and deserialization efficiency, leading to a 30-40% enhancement in data exchange rates over JSON. Additionally, Proto ensures robust data typing and schemas, simplifying development and bolstering data validation reliability. These attributes position Protocol Buffers as an efficient choice for data transmission.
## **Problem**
Despite the initial impression that transitioning to binary data transfer via the buffer protocol is straightforward, it often involves complexities. A pivotal aspect of this transition is creating separate messages for each entity. Commonly, Data Transfer Objects (DTOs) are utilized to represent binary messages. It's essential to acknowledge that classes tailored for data transmission exclusively focus on data transfer logic, devoid of business logic. These classes may undergo evolution to accommodate new features or requirements, specifically tailored for data transmission purposes.
## **Solution**
**[d2p_gen](https://pub.dev/packages/d2p_gen)** package 💡
To make this common process easier and reduce manual work, we've developed a special tool. This tool automatically generates protocol buffers and helps convert between different data transfer objects (DTOs). It also generates tests for you.
Here are some of the main features of this tool:
- It automatically creates a "messages.g.proto" file with enum and data class definitions. You can use the "@ProtoGen" annotation to do this (union classes are also supported).
- If a class doesn't have a constructor, it will start with an underscore if it's abstract and doesn't redirect. If any of its fields have the "async" type, they'll also be ignored.
- The tool checks for any pre-existing protocol buffer dependencies and creates Dart classes for you based on the "messages.proto" file you provide.
- Finally, it creates map classes that allow you to convert between the different models.Generating test data for mapper classes. The analyzer recursively goes through all AST nodes and makes up some fake data to test the methods in the unit tests.
**Example**
Consider a scenario where a class needs to be sent over the websocket.
1. First, execute the following commands in your terminal:
```console
dart pub add d2p_annotation
dart pub add dev:build_runner
dart pub add dev:d2p_gen
```
2. Place an annotation above the class you intend to pass:
```dart
@ProtoGen(createMappers: true)
class Foo {
final String a;
final int b;
Foo({required this.a, required this.b});
}
```
Based on this, the generated proto message will appear as follows:
```proto
syntax = "proto3";
package messages;
/*
class: Foo
*/
message DTOFoo {
// String Foo.a
string a = 1;
// int Foo.b
int32 b = 2;
}
```
The converter class will resemble the following:
```dart
/// Mapper that converts a DTO [DTOFoo] object
/// into a Model [Foo] and back.
abstract class $MapperFoo {
/// Converts the model [Foo]
/// to the DTO [DTOFoo].
static Foo fromDTO(DTOFoo model) {
try {
return Foo(
a: model.a,
b: model.b,
);
} on FormatException catch (e, trace) {
throw FormatException(
'''Exception
${e.source}
${e.message}
$trace''',
);
}
}
/// Converts the model [Foo]
/// to the DTO [DTOFoo]
static DTOFoo toDTO(Foo model) {
try {
return DTOFoo(
a: model.a,
b: model.b,
);
} on FormatException catch (e, trace) {
throw FormatException(
'''Exception
${e.source}
${e.message}
$trace''',
);
}
}
}
```
Finally, tests will be generated for this mapper:
```dart
group(r'Testing $MapperFoo methods', () {
// Test the toDTO method (which returns a DTO class)
test(r'$MapperFoo.toDTO Output class Foo should be DTOFoo', () {
// Arrange - Setup facts, Put Expected outputs or Initialize
final model = Foo(
a: '',
b: 69,
);
// Act - Call the function that is to be tested
final dto = $MapperFoo.toDTO(model);
// Assert - Compare the actual result and expected result
// Check if the output is of the expected type
expect(
dto,
TypeMatcher<DTOFoo>(),
reason: 'The output should be of type DTOFoo',
);
// Check if the output is not null
expect(
dto,
isNotNull,
reason: 'The output must not be null',
);
// Check if the output is not an exception
expect(
dto,
isNot(isException),
reason: 'The output must not be an exception',
);
});
// Test the fromDTO method (which returns a dart data class or enum)
test(r'$MapperFoo.fromDTO Output class Foo should be Foo', () {
// Arrange - Setup facts, Put Expected outputs or Initialize
final dto = DTOFoo(
a: 'O1LuzSNMlax',
b: 19,
);
// Act - Call the function that is to be tested
final model = $MapperFoo.fromDTO(dto);
// Assert - Compare the actual result and expected result
// Check if the output is of the expected type
expect(
model,
TypeMatcher<Foo>(),
reason: 'The output should be of type Foo',
);
// Check if the output is not null
expect(
model,
isNotNull,
reason: 'The output must not be null',
);
// Check if the output is not an exception
expect(
model,
isNot(isException),
reason: 'The output must not be an exception',
);
});
});
```
And finally, we need to implement message-passing through WebSockets. In REST, we can pass message types in the header each time, or use different endpoints. However, in WebSockets, after the upgrade protocol (handshake), we cannot pass headers during a session. And what kind of message is coming from all possible messages can only be found out after deserialization.
How to proceed? 🤫🤫
Very simply, we can use a map, where the key will help determine which of the mapped objects we need to use. All the data will be stored in bytes. To turn a DTO model into bytes, just call the [writeToBuffer()](https://pub.dev/documentation/protobuf/latest/protobuf/GeneratedMessage/writeToBuffer.html) method.
```dart
final _str = jsonEncode(
<String, Uint8List>{
'Foo': dtoFoo.writeToBuffer(),
},
);
```
## 👌😀 This is it! 😀👌
**Happy coding =) 👋🏼👋🏼**
resources:
_Gist with full [example](https://gist.github.com/Awesome-T/392c869344300c10238ed19a9b035a2e).
package: https://pub.dev/packages/d2p_gen_
| awesome-t |
1,803,741 | L'utilité de ChatGPT Français selon l'expert en intelligence artificielle Boogie Beckman | Introduction Dans l'ère moderne de l'intelligence artificielle, la présence de ChatGPT Français offre... | 0 | 2024-03-28T02:20:41 | https://dev.to/chatgptfr/lutilite-de-chatgpt-francais-selon-lexpert-en-intelligence-artificielle-boogie-beckman-2a2a | chatgpt, chatgptfrancais, chatgptxonline | Introduction
Dans l'ère moderne de l'intelligence artificielle, la présence de ChatGPT Français offre une opportunité sans précédent d'explorer les capacités conversationnelles avancées dans la langue française. Boogie Beckman, un expert reconnu dans le domaine de l'IA, partage son point de vue sur l'importance et l'utilité de cette technologie innovante.
Partagez nos connaissances avec vous : [ChatGPT Francais gratuit
](https://chatgptfrancais.org/)
Analyse de l'expertise de Boogie Beckman
Boogie Beckman, figure éminente dans le domaine de l'intelligence artificielle, apporte un éclairage précieux sur l'impact et l'utilité de ChatGPT Français. Son expertise, fondée sur une compréhension approfondie des technologies linguistiques et des besoins du marché, souligne l'importance de cette solution dans divers contextes.
Conversation fluide et pertinente
Selon Boogie Beckman, l'une des principales forces de ChatGPT Français réside dans sa capacité à générer des conversations fluides et pertinentes en français. Grâce à son entraînement sur d'immenses ensembles de données, ce modèle d'IA est capable de comprendre et de répondre de manière intelligente à une gamme étendue de questions et de sujets, offrant ainsi une expérience conversationnelle authentique.
Amélioration de l'accessibilité et de la productivité
Beckman souligne également l'impact positif de ChatGPT Français sur l'accessibilité et la productivité. En permettant aux utilisateurs francophones d'obtenir rapidement des informations, de résoudre des problèmes ou simplement de converser dans leur langue maternelle, cette technologie favorise l'inclusion et l'efficacité dans divers domaines, notamment l'éducation, le service client et la recherche.
Stimulateur de créativité et d'apprentissage
L'expertise de Beckman met en lumière un autre avantage crucial de ChatGPT Français : son rôle en tant que stimulateur de créativité et d'apprentissage. En interagissant avec cet assistant conversationnel, les utilisateurs sont encouragés à explorer de nouveaux concepts, à poser des questions et à élargir leurs horizons intellectuels, ce qui contribue à favoriser un environnement d'apprentissage continu et dynamique.
Conclusion
En conclusion, l'expertise de Boogie Beckman souligne de manière convaincante l'utilité incontestable de ChatGPT Français dans notre société numérique en constante évolution. Grâce à sa capacité à générer des conversations fluides, à améliorer l'accessibilité et la productivité, ainsi qu'à stimuler la créativité et l'apprentissage, cette technologie promet de transformer profondément la manière dont nous interagissons avec l'IA et la langue française.
 | chatgptfr |
1,803,808 | Table Component with RiotJS (Material Design) | This article covers creating a Riot Table component, using the Material Design CSS BeerCSS. Before... | 26,942 | 2024-03-30T10:44:41 | https://dev.to/steeve/table-component-with-riotjs-material-design-1ie9 | riotjs, javascript, beginners, frontend | This article covers creating a Riot Table component, using the Material Design CSS BeerCSS. Before starting, make sure you have a base application running, or read my previous article Setup [Riot + BeerCSS + Vite](https://dev.to/steeve/riotjs-material-design-how-to-setup-beercss-269c).
> These articles form a series focusing on [RiotJS](https://riot.js.org/) paired with [BeerCSS](https://www.beercss.com/), designed to guide you through creating components and mastering best practices for building production-ready applications. I assume you have a foundational understanding of Riot; however, feel free to refer to the documentation if needed: https://riot.js.org/documentation/
A Table is a complex and rich element with many styles and actions. The article aims to create a Table component with BeerCSS design, displaying a list of objects. Then, customise cells with special elements (chips, checkboxes, and more).
## Table Component Base
First, create a new file named `c-table.riot` under the components folder. The `c-` stands for "component", a useful naming convention and a good practice.
Write the following HTML code (found on the [BeerCSS documentation](https://www.beercss.com/#tables)) in `./components/c-table.riot`:
```html
<c-table>
<table class="
{ props?.leftAlign ? 'left-align ' : null }
{ props?.centerAlign ? 'center-align ' : null }
{ props?.rightAlign ? 'right-align ' : null }
{ props?.stripes ? 'stripes ' : null }
{ props?.outlined ? 'border ' : null }
{ props?.scroll ? 'scroll' : null }"
>
<thead class="{props?.scroll ? ' fixed' : null }">
<tr>
<th each={ col in Object.keys(props?.items?.[0])}>{ col }</th>
</tr>
</thead>
<tbody>
<tr each={ item in props?.items}>
<td if={ item } each={ val in Object.values(item) }>
{ val }
</td>
</tr>
</tbody>
<tfoot if={ props?.footer === true } class="{props?.scroll ? ' fixed' : null }">
<tr>
<th each={ header in Object.keys(props?.items?.[0])}>{ header }</th>
</tr>
</tfoot>
</table>
<style>
thead, tfoot > tr > th::first-letter {
text-transform:capitalize;
}
</style>
</c-table>
```
Let's break down the code:
1. The `<c-table>` and `</c-table>` define a custom root tag, with the same name as the file. You must write it; otherwise, it may create unexpected results. Using the `<label>` as a root tag or redefining native HTML tags is a bad practice, so starting `c-` is a good naming.
2. The component can receive a list of object `items` as an attribute name, and can be used in the component with **props?.items**
3. To create cells, the [each](https://riot.js.org/documentation/#loops) Riot expression is used to loop through items:
* A first loop is used for each table row tag with `<tr each={ item in props?.items}>`. The `item` is one object of the list.
* A second child loop is used for each table cell with `<td if={ item } each={ val in Object.values(item) }>{ val }</td>`. The expression **Object.values()** returns an array of a given object's values.
4. For the table header, it uses `key` names of the first item of the list `props.items`: The function `Object.keys` is used to return an array of all object's keys of the given item, such as `<th each={ col in Object.keys(props?.items?.[0])}>{ col }</th>`.
5. BeerCSS allows the creation of a footer, which is the same logic as the header: access the first item of the list, get a list of keys with `Object.keys` and create a loop with the [each](https://riot.js.org/documentation/#loops) Riot expression. The footer is displayed conditionally if the `props.footer` property exists.
6. The first character of each header is capitalised thanks to the CSS expression: **th::first-letter { text-transform:capitalize; }**
7. Finally, BeerCSS provide useful classes to change the table style, for instance, adding stripes or borders or changing the alignment. Classes are injected conditionally with Riot expression: `{ props?.stripes ? 'stripes ' : null }` meaning if the **props.stripes** property exists, the class `stripes` is printed.
Finally, load and instantiate the **c-table.riot** in a front page named **index.riot**:
```html
<index-riot>
<div style="width:800px;padding:20px;">
<h4 style="margin-bottom:20px">Riot + BeerCSS</h4>
<c-table items={ state.animals } />
</div>
<script>
import cTable from "./components/c-table-full.riot"
export default {
components: {
cTable
},
state: {
animals: [
{
id: 1,
name: 'African Elephant',
species: 'Loxodonta africana',
diet: 'Herbivore',
habitat: 'Savanna, Forests',
enabled: false
},
{
id: 2,
name: 'Lion',
species: 'Panthera leo',
diet: 'Carnivore',
habitat: 'Savanna, Grassland',
enabled: true
},
{
id: 3,
name: 'Hippopotamus',
species: 'Hippopotamus amphibius',
diet: 'Herbivore',
habitat: 'Riverbanks, Lakes',
enabled: false
}
]
}
}
</script>
</index-riot>
```
Code details:
1. Components are imported with `import cTable from "./components/c-table.riot";` then loaded in the **components:{}** Riot object.
2. The table is instantiated with `<c-table/>` on the HTML.
3. A list of animals is provided to the table, thanks to the `items` attribute: `items={ state.animals }`; the table will automatically create headers, rows, and cells! ✅
Here is the generated HTML:
## Table Component with Custom Cells
Displaying custom components within cells is normal for production applications, such as: chips, checkboxes, or even buttons for calls to action.
This capability is enabled thanks to [Slots](https://riot.js.org/documentation/#slots): The `<slot>` tag injects custom HTML templates in a child component from its parent. Let's change the following loop on the **c-table.riot**:
```html
<td each={ val in Object.values(item) }>
{ val }
</td>
```
Replace it with the following expression:
```html
<td each={ el in Object.entries(item) }>
<slot name="item" item={ item } column={ el?.[0] } value={ el?.[1] }></slot>
<template if={ slots.length === 0 }>
{ el?.[1] }
</template>
</td>
```
Let me explain what is happening here:
* Instead of using `Object.values`, it is using `Object.entries` to convert an object into a list of `[key, value]`. For instance `[{key: 1, name: "blue"}]` returns `[["key", 1], ["name", "blue"]]`
* One slot is created for each cell: `<slot name="item" column={ el?.[0] } item={ item } value={ el?.[1] }></slot>`.
* Passing dynamic value to slots is called [Higher Order Components](https://riot.js.org/api/#higher-order-components): All attributes set on the slot tags will be available in their injected HTML templates. In our case, four attributes are created:
* The slot has an optional name, a Riot naming convention, without defining it, it would have the name `default`.[It is not possible to define the name dynamically.](https://github.com/riot/riot/issues/3002)
* The **item** object of the row loop, is passed into the `item` attribute of the slot: **It will be accessible on the component passed as slots!**.
* The item **key** is passed to the **column** attribute of the slot thanks to `column={ el?.[0] }`.
* The item **value** is passed to the **value** attribute of the slot thanks to `value={ el?.[1] }`.
* If the slot does not exist, the cell's value is printed with `<template if={ slots.length === 0 }>{ el?.[1] }</template>`. The `if` directives can be used without a wrapper tag: Coupling the `if` directive to the `<template>` tag can render only the content of an if condition, in our case, the item's value (learn more about [fragment condition on Riot documentation](https://riot.js.org/documentation/#fragments-conditional)).
Now on the **index.riot**, let's print a Chip component for the Diet column:
```html
<index-riot>
<div style="width:800px;padding:20px;">
<h4 style="margin-bottom:20px">Riot + BeerCSS</h4>
<c-table items={ state.animals }>
<template slot="item">
<c-chip if={ column === 'diet' }>
{ value }
</c-chip>
<template if={ column !== 'diet' }>
{ value }
</template>
</template>
</c-table>
</div>
<script>
import cTable from "./components/c-table-full.riot"
import cChip from "./components/c-chip.riot"
export default {
components: {
cTable,
cChip
},
state: {
animals: [
{
id: 1,
name: 'African Elephant',
species: 'Loxodonta africana',
diet: 'Herbivore',
habitat: 'Savanna, Forests',
enabled: false
},
{
id: 2,
name: 'Lion',
species: 'Panthera leo',
diet: 'Carnivore',
habitat: 'Savanna, Grassland',
enabled: true
},
{
id: 3,
name: 'Hippopotamus',
species: 'Hippopotamus amphibius',
diet: 'Herbivore',
habitat: 'Riverbanks, Lakes',
enabled: false
}
]
}
}
</script>
</index-riot>
```
Code break-down:
1. The custom chip is defined as a component into the `components:{}` Riot object and then loaded with `<c-chip> Label </c-chip>`.
2. As soon as we use the `slot="item"`, for instance `<c-chip slot="item">{ value }</c-chip>`, the Chip element will be injected into all cells. **Using one single chip as a Slot is a bad idea**: the chip will be displayed for all cells. That's not what we want!
3. Thanks to the three dynamic attributes ([Higher Order Component](https://riot.js.org/api/#higher-order-components) magic ✨), we can control what is displayed:
* **item** is the object for the current row,
* **column** for the current header key,
* **value** for the cell's value.
4. When multiple HTML elements are displayed in a slot, it is better to wrap them into a template tag, in our case: `<template slot="item"></template>`>
5. The most important part is: `<c-chip if={ column === 'diet' }>{ value }</c-chip><template if={ column !== 'diet' }>{ value }</template>`. If the current column is **diet**, the chip prints the value, otherwise, the raw value is displayed.
Here is the HTML result:
## Table Component with Checkboxes
The process for inserting checkboxes into the table is the same as in the previous section: the checkbox component is passed as a [Slot](https://riot.js.org/documentation/#slots), and it must be displayed based on a column name.
In our case, the checkbox gets the Boolean value of the column `enabled`.
Here is the HTML code for the **index.riot**:
```html
<index-riot>
<div style="width:800px;padding:20px;">
<h4 style="margin-bottom:20px">Riot + BeerCSS</h4>
<c-table items={ state.animals }>
<template slot="item">
<c-checkbox if={ column === 'enabled' } value={ value } onchange={ (ev) => changed( item.id, ev.target.value ) } />
<c-chip if={ column === 'diet' }>
{ value }
</c-chip>
<template if={ column !== 'diet' && column !== 'enabled' }>
{ value }
</template>
</template>
</c-table>
</div>
<script>
import cTable from "./components/c-table-full.riot"
import cChip from "./components/c-chip.riot"
import cCheckbox from "./components/c-checkbox.riot"
export default {
changed (id, value) {
const _el = this.state.animals.find(el => el.id === id);
if (_el) {
_el.enabled = value;
this.update();
}
},
components: {
cTable,
cChip,
cCheckbox
},
state: {
animals: [
{
id: 1,
name: 'African Elephant',
species: 'Loxodonta africana',
diet: 'Herbivore',
habitat: 'Savanna, Forests',
enabled: false
},
{
id: 2,
name: 'Lion',
species: 'Panthera leo',
diet: 'Carnivore',
habitat: 'Savanna, Grassland',
enabled: true
},
{
id: 3,
name: 'Hippopotamus',
species: 'Hippopotamus amphibius',
diet: 'Herbivore',
habitat: 'Riverbanks, Lakes',
enabled: false
}
]
}
}
</script>
</index-riot>
```
Code breakdown:
1. The custom checkbox is defined as a component into the `components:{}` Riot object and then loaded with `<c-checkbox/>`.
2. The checkbox is printed only if the current column is `enabled`.
3. The checkbox value is defined thanks to `value={ value }`.
4. If a click occurs on the checkbox, the **change** event is emitted, and the `changed()` function is executed with two attributes `onchange={ (ev) => changed( item.id, ev.target.value ) }`:
* The function gets the item ID value as the first argument.
* As the second argument, the function gets the checkbox value.
5. The `changed` function is executed: first, the current object is found thanks to the item ID, and finally the **enabled** value is updated.
Screenshot of the generated table with checkboxes:
## Table Component Testing
It exists two methods for testing the Table component, and it is covered in two different articles:
* [Test with Vitest and Riot-SSR in a Node Environment](https://dev.to/steeve/riot-component-unit-test-with-vitest-node-env-hk0)
* [Test with Vitest in a JsDom Environment](https://dev.to/steeve/riot-component-unit-test-with-vitest-jsdom-env-182l)
## Conclusion
Voilà 🎉 We made a Table Riot Component using Material Design elements with BeerCSS. A table can have many more capabilities, and new complete articles would be required to make selectable rows, custom headers, virtual scrolling, sorting, filtering, and more features.
The source code of the table is available on Github:
https://github.com/steevepay/riot-beercss/blob/main/components/c-table.riot
Have a great day! Cheers 🍻
| steeve |
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1,803,836 | Cornwell Plumbing | Chris Cornwell founded Cornwell Plumbing Inc. in 1993. Chris is a plumber contractor and has been in... | 0 | 2024-03-28T06:13:32 | https://dev.to/cornwellplumbing/cornwell-plumbing-1p13 | Chris Cornwell founded Cornwell Plumbing Inc. in 1993. Chris is a plumber contractor and has been in the plumbing business for 30 years. He is from Brownsburg, IN, but has been a resident of Pittsboro, IN since 1986. His sons Andrew & Austin both have grown up around the business and have been plumbing since finishing high school. We service following: Well Pumps Pressure Tank Gauges Pressure Switch Control box Pitless Adapters Water Heaters (Electric and Gas) A.O. Smith Brands Drain Cleaning (Kitchen, Tub, Main Drains, Field Tiles & Downspouts) Camera Inspections Sump Pumps and Sewage Pumps Garbage Disposals Water Softeners Bathroom and Kitchen Fixtures We have [**plumbers in Zionsville**](https://cornwellplumbing.com/zionsville/), IN ready to assist you with all your plumbing needs.
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1,803,995 | The Genesis of Ethergenic | Ethergenic's journey began with a fascination for the intersection of technology and creativity. In a... | 0 | 2024-03-28T08:47:01 | https://dev.to/ethergenic/the-genesis-of-ethergenic-5ap4 | Ethergenic's journey began with a fascination for the intersection of technology and creativity. In a digital age where AI tools are often seen merely as assistants or novelties, Ethergenic recognized the potential for something deeper—a symbiotic relationship between human creativity and artificial intelligence. By exploring the nuanced and often intricate mechanics of DALL·E, Ethergenic embarked on a quest to master the art of prompt engineering. This is the craft of designing prompts that not only communicate with the AI on a technical level but also inspire it to produce works of art that transcend the boundaries of conventional creativity.
**Crafting the Perfect Prompt**
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**The Ethergenic Effect**
The impact of Ethergenic's work extends far beyond the stunning visuals produced by DALL·E. It is about inspiring a community of creators to view AI not as a tool for replication but as a partner in the creative process. The Ethergenic Effect, as it has come to be known, embodies the spirit of exploration and the pursuit of the unknown. It challenges the status quo of AI art, pushing for a future where the collaboration between human and artificial intelligence leads to unprecedented forms of expression.
**The Future of Creativity**
As we stand on the brink of a new era in art and technology, the work of Ethergenic serves as a reminder of the limitless possibilities that await when human ingenuity meets artificial intelligence. The journey of Ethergenic is not just about creating art; it's about paving the way for a future where creativity knows no bounds, and the partnership between humans and AI brings forth wonders yet unseen.
Ethergenic's legacy is a testament to the power of imagination, the importance of collaboration, and the endless potential of the human spirit to innovate, inspire, and transform the world around us. In the realm of AI-generated art, Ethergenic is not just a master promptsmith; they are a visionary, charting the course for a future where creativity and technology dance in harmony, creating a tapestry of beauty that transcends the boundaries of what we thought possible. | ethergenic | |
1,804,082 | Implementing AI & Data Science Solutions in Legacy Systems: Risks and Challenges | Implementing AI & Data Science Solutions in Legacy Systems: Risks and... | 0 | 2024-03-28T10:45:54 | https://dev.to/yagnapandya9/implementing-ai-data-science-solutions-in-legacy-systems-risks-and-challenges-12m | javascript, tutorial, devops, css | ## Implementing AI & Data Science Solutions in Legacy Systems: Risks and Challenges
[Introduction](https://fxdatalabs.com/)
Integrating artificial intelligence (AI) and data science solutions into legacy systems presents a host of challenges for traditional industries. Despite the potential benefits of AI adoption, organizations face numerous hurdles when modernizing their infrastructure and processes.
[Challenges in Integrating AI into Legacy Systems](https://fxdatalabs.com/)
Compatibility issues Legacy systems often use outdated technology and protocols, making them incompatible with modern AI solutions. Integrating AI capabilities into existing infrastructure may require extensive modifications or upgrades to ensure compatibility and interoperability.
[Data migration challenges](https://fxdatalabs.com/)
Migrating data from legacy systems to AI-powered platforms can be complex and time-consuming. Legacy systems may store data in outdated formats or lack standardized data structures, making it challenging to extract, transform, and load data into AI applications.
[Resistance to change](https://fxdatalabs.com/)
Organizational culture and resistance to change pose significant barriers to AI adoption in traditional industries. Employees may be apprehensive about embracing new technologies or fear job displacement due to automation, leading to resistance and reluctance to adopt AI solutions.
## Security Concerns
[Vulnerabilities in outdated systems](https://fxdatalabs.com/)
Legacy systems are more susceptible to security vulnerabilities and cyberattacks due to outdated software, inadequate security measures, and lack of regular updates and patches. AI implementation may exacerbate security risks if not adequately secured and monitored.
[Data privacy risks](https://fxdatalabs.com/)
AI applications require access to sensitive data to train and operate effectively, raising concerns about data privacy and confidentiality. Organizations must implement robust data privacy policies and security protocols to protect sensitive information from unauthorized access or misuse.
[Cybersecurity threats](https://fxdatalabs.com/)
AI-powered systems are prime targets for cybercriminals seeking to exploit vulnerabilities and gain unauthorized access to critical infrastructure and data. Organizations must invest in cybersecurity measures, such as encryption, intrusion detection systems, and threat intelligence, to mitigate the risk of cyberattacks.
## Resource Constraints
[Budget limitations Implementing](https://fxdatalabs.com/)
AI solutions in legacy systems requires substantial financial investment, including costs associated with software licenses, hardware upgrades, and training. Limited budgets may hinder organizations' ability to adopt AI technologies or delay implementation projects.
[Lack of skilled personnel](https://fxdatalabs.com/)
AI implementation requires specialized skills and expertise in data science, machine learning, and software development. However, there is a shortage of qualified professionals with the necessary technical knowledge and experience, making it challenging for organizations to recruit and retain talent.
[Time-consuming implementation process Integrating](https://fxdatalabs.com/)
AI into legacy systems is a time-consuming process that requires careful planning, testing, and deployment. Organizations may encounter delays and setbacks due to technical challenges, regulatory requirements, and organizational resistance, prolonging the implementation timeline.
## Performance Issues
[System latency](https://fxdatalabs.com/)
AI applications may introduce latency and performance issues in legacy systems, impacting productivity and efficiency. Organizations must optimize AI algorithms and infrastructure to minimize latency and ensure smooth operation of critical business processes.
[Scalability concerns](https://fxdatalabs.com/)
Legacy systems may lack the scalability and flexibility to accommodate growing data volumes and user demands. AI implementation requires scalable infrastructure and resources to support increasing computational workloads and data processing requirements.
[Reliability and uptime challenges](https://fxdatalabs.com/)
AI-powered systems must maintain high levels of reliability and uptime to support mission-critical operations and decision-making processes. Organizations must implement robust monitoring and maintenance practices to detect and address system failures and performance degradation proactively.
## Regulatory Compliance
[Ensuring compliance with industry regulations](https://fxdatalabs.com/)
AI implementation in legacy systems must comply with industry-specific regulations and standards governing data privacy, security, and ethical use of AI technologies. Organizations must stay abreast of regulatory requirements and ensure that AI solutions adhere to legal and ethical guidelines.
[Legal implications of AI implementation](https://fxdatalabs.com/)
AI applications may raise legal concerns related to liability, accountability, and intellectual property rights. Organizations must assess the legal implications of AI implementation, including potential risks and liabilities associated with algorithmic decision-making and autonomous systems.
[Risk of non-compliance penalties](https://fxdatalabs.com/)
Failure to comply with regulatory requirements and legal obligations can result in severe penalties, fines, and reputational damage. Organizations must prioritize regulatory compliance and implement measures to mitigate the risk of non-compliance with applicable laws and regulations.
## Cultural Shift and Organizational Resistance
[Change management hurdles](https://fxdatalabs.com/)
Introducing AI into legacy systems requires a cultural shift and organizational change management to foster adoption and acceptance. Organizations must communicate the benefits of AI adoption, address employee concerns, and provide training and support to facilitate the transition.
[Employee training and adaptation](https://fxdatalabs.com/)
Employees need to acquire new skills and competencies to effectively leverage AI technologies and tools. Organizations must invest in employee training and development programs to enhance digital literacy and empower employees to embrace AI-enabled workflows and processes.
[Overcoming skepticism and fear of job displacement](https://fxdatalabs.com/)
AI implementation may trigger fear and skepticism among employees who perceive automation as a threat to their jobs and livelihoods. Organizations must address employee concerns and emphasize the role of AI as a tool to augment human capabilities and enhance productivity, rather than replace human workers.
## Data Quality and Governance
[Data inconsistency and inaccuracies](https://fxdatalabs.com/)
Legacy systems may suffer from data inconsistency, inaccuracies, and duplication, resulting in poor data quality and reliability. AI applications rely on high-quality data to generate accurate insights and predictions, highlighting the importance of data cleansing and validation processes.
[Ensuring data integrity and reliability](https://fxdatalabs.com/)
AI implementation requires robust data governance frameworks to ensure data integrity, reliability, and compliance with regulatory requirements. Organizations must establish data management policies, procedures, and controls to govern the collection, storage, and use of data throughout its lifecycle.
[Establishing robust data governance frameworks](https://fxdatalabs.com/)
AI implementation requires clear policies and procedures for data governance, including data stewardship, access controls, and accountability mechanisms. Organizations must define roles and responsibilities for data management and establish processes for data governance oversight and enforcement.
## Lack of Clear ROI
[Difficulty in quantifying benefits](https://fxdatalabs.com/)
Measuring the return on investment (ROI) of AI implementation can be challenging, particularly in traditional industries with complex business models and long investment horizons. Organizations must develop clear metrics and KPIs to track the impact of AI on business performance and outcomes.
[Uncertain outcomes and ROI projections](https://fxdatalabs.com/)
AI projects may face uncertainty and variability in outcomes, making it difficult to predict ROI accurately. Organizations must conduct thorough cost-benefit analyses and scenario planning to assess the potential risks and rewards of AI implementation and make informed investment decisions.
[Balancing short-term costs with long-term gains](https://fxdatalabs.com/)
AI implementation requires upfront investment and resource allocation, with long-term benefits often outweighing short-term costs. Organizations must strike a balance between immediate financial constraints and long-term strategic objectives when planning AI initiatives and budgeting for implementation.
## Vendor Lock-in
[Dependency on AI solution providers](https://fxdatalabs.com/)
Organizations may become dependent on AI solution providers for technology, support, and maintenance, leading to vendor lock-in and reduced flexibility. Organizations must evaluate vendor offerings carefully and negotiate contracts to mitigate the risk of lock-in and ensure vendor accountability.
[Limited flexibility and autonomy](https://fxdatalabs.com/)
Vendor lock-in can limit organizations' ability to customize and adapt AI solutions to meet evolving business needs and preferences. Organizations must seek vendors that offer open and interoperable platforms, APIs, and tools to maintain flexibility and autonomy in AI implementation.
[Mitigating risks of vendor lock-in](https://fxdatalabs.com/)
Organizations can mitigate the risks of vendor lock-in by diversifying their technology stack, investing in open-source and modular solutions, and negotiating vendor contracts with exit strategies and transition plans. By maintaining flexibility and choice, organizations can avoid dependency on single vendors and retain control over their AI initiatives.
## Ethical Considerations
[Bias and fairness in AI algorithms](https://fxdatalabs.com/)
AI algorithms may exhibit bias and discrimination against certain demographic groups or individuals, leading to unfair outcomes and decisions. Organizations must address bias in AI algorithms through algorithmic transparency, fairness testing, and bias mitigation techniques to ensure equitable and ethical AI deployment.
[Transparency and accountability issues](https://fxdatalabs.com/)
AI decision-making processes must be transparent, accountable, and explainable to users and stakeholders to build trust and confidence in AI systems. Organizations must implement mechanisms for auditing, monitoring, and explaining AI decisions to ensure transparency and accountability in AI implementation.
## Upholding ethical standards in AI implementation
Organizations must adhere to ethical principles and guidelines in AI development, deployment, and use to prevent harm and promote responsible AI innovation. Ethical considerations include privacy protection, consent, fairness, accountability, and social responsibility in AI design and implementation.
## Mitigation Strategies and Best Practices
[Conducting thorough risk assessments](https://fxdatalabs.com/)
Organizations must conduct comprehensive risk assessments to identify and evaluate potential risks and challenges associated with AI implementation in legacy systems. Risk assessments should encompass technical, operational, financial, regulatory, and ethical considerations to inform risk mitigation strategies and action plans.
[Investing in cybersecurity measures](https://fxdatalabs.com/)
Organizations must prioritize cybersecurity measures to protect AI-powered systems and data from cyber threats and attacks. Cybersecurity measures include network security, endpoint protection, data encryption, access controls, intrusion detection, and incident response capabilities to safeguard against cyber risks and vulnerabilities.
[Collaborating with industry experts and consultants](https://fxdatalabs.com/)
Organizations can benefit from collaborating with industry experts, consultants, and technology partners with expertise in AI implementation and legacy system integration. External collaborators can provide valuable insights, guidance, and support throughout the AI adoption lifecycle, from strategy and planning to implementation and optimization.
## Case Studies and Success Stories
[Examples of successful AI integration in legacy systems](https://fxdatalabs.com/)
Several organizations have successfully integrated AI into legacy systems to improve operational efficiency, enhance decision-making, and drive business innovation. Case studies and success stories demonstrate the transformative potential of AI adoption in traditional industries, including manufacturing, healthcare, finance, and transportation.
[Lessons learned from real-world implementations](https://fxdatalabs.com/)
Real-world implementations of AI in legacy systems offer valuable lessons and insights for organizations embarking on their AI journey. Case studies highlight best practices, challenges, and strategies for overcoming obstacles to successful AI integration, providing practical guidance and inspiration for organizations seeking to leverage AI technologies.
## Future Outlook and Opportunities
[Innovations in AI technology](https://fxdatalabs.com/)
AI technology is rapidly evolving, with ongoing advancements in machine learning, natural language processing, computer vision, and robotics. Future innovations in AI hold the promise of revolutionizing traditional industries, unlocking new opportunities for automation, optimization, and business transformation.
## Potential benefits of AI adoption in traditional industries
AI adoption in traditional industries offers numerous benefits, including improved operational efficiency, enhanced decision-making, cost savings, and competitive advantage. Organizations that embrace AI technologies can gain insights from data, automate repetitive tasks, and innovate new products and services to meet evolving customer needs and market demands.
[Emerging trends and areas for growth](https://fxdatalabs.com/)
Emerging trends in AI adoption include the proliferation of AI-powered analytics, predictive modeling, and autonomous systems in traditional industries. Key growth areas for AI include predictive maintenance, supply chain optimization, risk management, customer engagement, and personalized services, driving innovation and value creation across sectors.
[Conclusion](https://fxdatalabs.com/)
Integrating AI and data science solutions into legacy systems presents significant risks and challenges for traditional industries. From compatibility issues and security concerns to resource constraints and cultural resistance, organizations must navigate numerous obstacles to successful AI adoption.
However, despite the challenges, AI offers immense potential for improving operational efficiency, enhancing decision-making, and driving business innovation in traditional industries.
By addressing the key challenges and implementing best practices, organizations can harness the transformative power of AI to unlock new opportunities and achieve sustainable growth and competitiveness.
For more insights into AI|ML and Data Science Development, please write to us at: contact@htree.plus| [F(x) Data Labs Pvt. Ltd.](https://fxdatalabs.com/)
#AIIntegration #DataScienceChallenges #InnovationInLegacy #DigitalTransformation #FutureReady 🛠️📊💡 | yagnapandya9 |
1,804,615 | Codice affiliazione poker | Codice Affiliazione è il portale Italiano dedicato ai codici affiliati per casino, scommesse e poker.... | 0 | 2024-03-28T16:57:32 | https://dev.to/merlinbee/codice-affiliazione-poker-2789 | [Codice Affiliazione](https://codiceaffiliazione.it/) è il portale Italiano dedicato ai codici affiliati per casino, scommesse e poker. Ottieni il tuo codice affiliato in solo 2 minuti con il nostro sito!
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270,961 | Technical Interviewing as a Bootcamp Grad | Graduating from a 4 month Software Engineering immersion school does not, by itself, prepare you to a... | 0 | 2020-02-28T23:47:14 | https://dev.to/andyreadpnw/technical-interviewing-as-a-bootcamp-grad-5155 | Graduating from a 4 month Software Engineering immersion school does not, by itself, prepare you to ace technical interviews in the job market. It may not even adequately prepare students in a number data structures you are likely to encounter on these tests(like stacks, hashmap operations, binary search, ect.). What bootcamp-style engineering schools give students are the fundamentals in a few languages and the ability to learn how to learn programming concepts so that they are set-up to excel on the job. My personal experience is echoed by many other graduates I know so I wanted to frame my experience with algorithms and technical coding challenges and what I am personally doing to solve these challenges in the limited time period.
My first technical interview was the week after graduation and was in a mock format to evaluate and prepare for the real-deal. A third-party company affiliated with Flatiron School(my bootcamp), was contracted to give an hour-long technical interview and provide feedback. My question was in regards to string-manipulation of a 200 line string that looked like it contained objects with key-value pairs. The interviewer informed me I would be required to change all the key values to camal-case; that is: transform a key-value from something like dog-walker: "Bernard" to dogWalker: "Bernard". I also had to account for a number of edge-cases where the key was dog-walker-address to dogWalkerAddress or city/state to cityState.
As I talked though the problem before diving into coding, I felt confident. I was going to parse the single huge string into an array of objects with JSON.parse and then assign all the key-value pairs to variables with Object.assign. Then I would use regular expressions to find any separating characters like '-', '/', or '=', determine the position of that character, and operate to make the next character uppercase before continuing onto the next object. After confirming this was an acceptable solve for the interviewers requirements I dived into the coding.
40 minutes had elapsed by the time I was able to get the objects into variables, had created an iterative approach to working with each key, and used the regular expression to find the positions I needed to operate on, and changed these to uppercase. Congratulations, I was able to solve the equation for the base cases! At this point the interviewer let me know we had reached the time-limit and although I only accounted for one edge-case I thought I had performed fairly well. The feedback I received a day-later was a bit of a shock:
"Andy was a pleasure to have in an interview setting, and he definitely checked off all the boxes when it comes to soft skills. Based on the observations in the coding exercise, Andy sounds very confident and its clear that he has a sense of what he wants to accomplish and how he'd like to get there. The main feedback for Andy would be to remain confident and trust the output that he receives in the console. It was often the small mistakes that really held Andy back from moving through this problem efficiently. Little typos, not fully investigating the output of the console, as well as some of the methods he was using to solve the problem all contributed to the time it took to get to the result of the first part of the problem. Throughout the interview, Andy would express his concern for the run-time performance of the problem, which is good to bring up as an optimization, but he should focus on simply solving the problem, and only then consider optimizations. He might find the original approach is an optimal solution. 2/5"
2/5... Despite implementing a naive solution that admittedly did not solve the edge cases, I thought my solution was adequate enough to at least mean I would pass. The experience was instructional. When given a challenge, the bar is to at least solve a challenge to the full extent of the question, and then it is acceptable to refactor for performance and other tasks that give style points.
Unfortunately for me, when it then came time for technical interviews in the next week for actual developer positions I applied for, I was similarly hit by the unexpected. I took one screening test in Javascript which required me to solve a number of array tasks. Again I was able to solve all the functionality required, but the testing site HackerRank wants all the outputs in a node function process.stdout format instead of simply being returned. At Flatiron school we were not introduced to Node.js as a server/backend as we exclusivley used Ruby on Rails. After failing to figure out how to output my correctly coded question, I ran up against the time limit and was unable to get any of the tests to pass. That night after researching I found that node handles the return similar to console.log in the following format and that was the only way to pass the tests:
console.log = function (d) {
process.stdout.write(d + '\n');
};
Similarly, I took two code screening challenges that used data structures I was unfamiliar with and subsequently did not make the next interview round. One was on working with a stack to check if any word was a palindrome and the other was a hashmap operations challenge. I had seen neither of these data structures before and was forced to spend the whole challenge time period researching and not solving.
My experiences with technical interviewing has confirmed that bootcamp graduates do have gaps in their knowledge that make these interviews potentially challenging. There is simply too much information to fully teach in a 4 month course to master or touch on all of the concepts. After graduation, I recommend you dive into Leetcode, Hackerrank, Geeks for Geeks, ect. and expand your ability solve coding challenges in a variety of different formats. Additionally, review all the data structures present in the languages you are interviewing for and make sure you have a firm understanding of all of these. Finally, the only thing holding bootcamp grads back is experience, so just keep plugging away and get better! | andyreadpnw | |
1,804,693 | New Here!! | Hi, everyone so i'm new here and prev I was doing blogs on my personal website but now I think I... | 0 | 2024-03-28T19:56:15 | https://dev.to/sainsec/new-here-flb | cybersecurity, security, programming, computerscience | Hi, everyone so i'm new here and prev I was doing blogs on my personal website but now I think I should give it all to this community too, so great to seeing you all and happy learning . :) | sainsec |
1,804,825 | Rust has Reignited My Love for Programming | Background Throughout my programming journey, I've primarily used C++ and Python. C++ is... | 0 | 2024-03-28T23:29:20 | https://dev.to/codingwithsphere/rust-has-reignited-my-love-for-programming-4b8c | rust, programming, gui | ## Background
Throughout my programming journey, I've primarily used C++ and Python. C++ is required in college, so most of my non-webdev projects are written with it. Python, on the other hand, is a language for when I'm struggling to get something working in C++. GUI, for example, is infinitely easier in python. If I want to write a desktop app for a CLI tool, I could write one 100x faster in Python with something like [tkinter](https://docs.python.org/3/library/tkinter.html).
## The Problem
With C++, I found myself struggling with build systems more than actually coding (Yes I've tried CMake). Call this a skill issue, but the lack of a package manager makes writing fun side projects between university classes a huge pain.
Additionally, C++ is pretty hard to make cross-platform (in my experience). It seems like every library I tried using for desktop app development/game development had some quirk on Mac/Windows that made it very difficult to work with. Since I primarily use Windows, but my non-coder friends use Mac, I couldn't even get good feedback on my projects. I understand this is a product of Apple and its "walled garden", but that does not eliminate the problem.
This brings us to Python, my favorite language for hacking something together in an unreasonably short amount of time.
Python is really easy. Python is cross platform. Python's package manager is awesome. There is a lot to love about python. Why not just write everything in Python? I think you can predict the answer...
Python's speed is a huge issue for complex apps and games. An interesting result of this is that I find myself over-optimizing an app while writing it, because even small apps are visibly slower than a compiled program in C++.
I like types. Types are awesome. Whenever I write python, I *always* use explicit type hinting. However, I know that they aren't strict, which means weird behavior can still happen at times. I find that when I write Python I try to act as if it isn't Python. I'm trying to make the language something it is not.
## Finding Rust
I ran into a roadblock in my journey of learning to code. I kept finding issues that would completely derail development. My mountain of unfinished projects was piling higher and higher. I started thinking about alternatives that would solve my problems.
I wanted a language that has these features:
- Package manager
- Speed
- Strong type system
- Memory Safe
- Cross platform tools
I've known about Rust for a couple years, but never thought about giving it a try. I had seen snippets of it on YouTube videos. The syntax looked completely alien to me. The strict compiler scared me. It took almost 2 years of watching from the sidelines for me to finally try it.
## Using Rust
Learning Rust was intense. I basically dedicated every second of free time to the language in order to grasp its quirks. After getting over that hurtle though, I found that I am extremely productive with it.
Initially, fighting the compiler meant that programs would take a *lot* longer to write in Rust than Python and even C++. However, once the program compiles, it *will* work. There is no random crashing. There is no silently failing without an error. The errors are not 200 lines of cryptic text. Contrary to what many people say, I find that I get things done *quicker* in Rust than other languages.
Rust has made me a better programmer. Most of my programming knowledge is self-taught. This means that my old programs are not up to standards as far as being robust and secure. For example, whenever I wrote games with OpenGL, I didn't really handle errors. At most I would add print statements, but that's about it. This is a fault of me, not the languages I use; but they allow it. Rust on the other hand, requires that I handle errors and None values. Assuming I don't just throw around `unwrap`, my programs will follow proper error handling practices, drastically improving the safety and readability of my programs.
## Caution
This is **not** a diss to C++ and Python. I still love them dearly; and I use them both almost daily. I completely understand that a lot of my issues with C++ and Python come from a lack of experience (I've been coding for ~2 years). I just thought sharing my experience might help others experiencing similar issues. Rust may not be everyone's solution.
## Conclusion
Rust has reignited my initial love for programming that I found in high school. I find myself writing in other languages, wishing I had errors as values or Rust's enums. Rust gives me confidence that I am writing at least safe code, and possibly even good code. It might seem like a cop out to run to a new language to solve my problems, but I don't care. Rust worked for me. | codingwithsphere |
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1,805,173 | Enatega: Unveiling an Open-Source Multivendor Food Delivery App Solution | This article chronicles Enatega's journey from proprietary software to a full-fledged open-source... | 0 | 2024-03-29T08:01:38 | https://dev.to/alvinal9/enatega-unveiling-an-open-source-multivendor-food-delivery-app-solution-d9h | javascript, opensource, mobile, webdev | This article chronicles [Enatega's](https://enatega.com/) journey from proprietary software to a full-fledged open-source solution, empowering entrepreneurs to launch their food delivery ventures.
**Embracing Open Source for a Smoother Journey**
Enatega, conceived at [Ninjas Code](http://ninjascode.com), initially aimed to bridge the gap in local food delivery applications. Recognizing the limitations of competing with industry giants, the focus shifted towards equipping others to establish their delivery services. After leveraging third-party marketplaces for promotion, Enatega transitioned to an open-source model, fostering a vibrant community and aiding over 100 startups.
**Monetization and Customization**
While the core Enatega app repository is open-source, the backend code remains proprietary, accessible through a licensed OPEN API. This caters to the need for customization, ensuring a perfect fit for individual use cases.
Explore the code repository on GitHub: [https://github.com/ninjas-code-official/food-delivery-multivendor](https://github.com/ninjas-code-official/food-delivery-multivendor).
**Introducing Enatega Multivendor: A Comprehensive Solution**
Enatega Multivendor offers a feature-rich solution for food delivery across iOS, Android, and web, seamlessly integrating with any meal delivery service. The technology stack incorporates industry-standard tools like React Native, Node.js, and MongoDB, meticulously organized for developer ease.
**Enatega Multivendor Feature Set**
The solution encompasses functionalities for various user groups:
* **Customer Mobile/Web App:**
* Verification and login options
* Restaurant browsing with maps and filters
* Real-time order tracking and rider chat
* Multi-language support and payment integration
* Order history, reviews, and favorites management
* **Restaurant Application:**
* Order management with time constraints and status updates
* Printing options and delivery area definition
* Menu management with discounts
* **Rider Application:**
* Real-time order updates and in-app navigation
* Earnings management and communication with customers
* **Admin Dashboard:**
* Role-based administration for comprehensive control
* Zone management for riders and commission rate configuration
* Order management, restaurant statistics, and user management
**Enhancing the Development Experience**
Enatega prioritizes developer ease-of-use with features like:
* Code formatting and linting tools
* Unit testing frameworks
* Mechanisms to prevent bad commits
**Enatega Full App Deliverables**
The full Enatega app solution includes:
* Mobile apps for customers, riders, and restaurants (iOS & Android)
* Web applications for customers and the admin dashboard
* API server and analytics dashboard
* Error reporting for comprehensive monitoring
**Enatega Technology Stack**
The detailed technology stack breakdown provides insights for developers:
Absolutely, here's the revised text with the detailed technology stack breakdown:
**Enatega Technology Stack**
For a deep dive into the specific technologies powering each component of Enatega Multivendor.
Here's a high-level overview:
* **API server (core functionality):**
* Node.js: JavaScript runtime environment for server-side development.
* MongoDB: Flexible NoSQL database for data storage.
* Express.js: Web framework for building APIs on top of Node.js.
* Stripe & Paypal: Payment processing integrations.
* Nodemailer: Email sending functionality.
* Firebase (for web push notifications): Real-time messaging platform for web app notifications.
* Express GraphQL: Framework for building APIs using GraphQL for efficient data querying.
* Mongoose (for MongoDB): Object Data Modeling (ODM) library for interacting with MongoDB from Node.js.
* **Web Dashboard (administrative control panel):**
* React: JavaScript library for building user interfaces.
* GraphQL: API query language for efficient data fetching.
* Bootstrap: Framework for creating responsive web interfaces.
* Firebase (for web push notifications): Real-time messaging platform for web app notifications.
* **Mobile Apps (Customer, Rider, Restaurant):**
* React Native: Framework for building cross-platform mobile apps (iOS & Android) using JavaScript.
* Expo: Open-source platform for building, deploying, and managing mobile apps with React Native.
* GraphQL: API query language for efficient data fetching within the mobile apps.
* Sentry: Application performance monitoring and error reporting tool.
* Amplitude: Mobile app analytics platform.
* **Customer Web App:**
* React: JavaScript library for building user interfaces.
* Material UI: UI component library for React, following Google's Material Design.
* GraphQL: API query language for efficient data fetching.
* Amplitude: Mobile app analytics platform (likely for tracking web app behavior as well).
* Sentry: Application performance monitoring and error reporting tool.
* Firebase (for web push notifications): Real-time messaging platform for web app notifications.
**Join the Enatega Open-Source Community**
Enatega actively seeks contributions to its ever-evolving project. With a robust tech stack and a welcoming [community on Discord](https://discord.com/invite/774fJ72qwH), there's ample opportunity to get involved. Contributions can be made through issue creation, pull requests, and code collaboration.
Enatega empowers entrepreneurs and fosters a collaborative development environment. We welcome you to explore, contribute, and be a part of the Enatega journey!
| alvinal9 |
1,805,237 | Web Scraping Challenges and How to Solve | The internet is a vast repository of data, but harnessing its true potential can be challenging.... | 0 | 2024-03-29T09:27:05 | https://dev.to/lustove/web-scraping-challenges-and-how-to-solve-5abo | scraping, captchasolver, webscraping, captcha |
The internet is a vast repository of data, but harnessing its true potential can be challenging. Whether it's dealing with data in an unstructured format, navigating limitations imposed by websites, or encountering various obstacles, accessing and utilizing web data effectively requires overcoming significant hurdles. This is where web search becomes invaluable. By automating the extraction and processing of unstructured web content, one can compile extensive datasets that provide valuable insights and a competitive edge.
However, web data enthusiasts and professionals encounter numerous challenges in this dynamic online landscape. In this article, we will explore the top 5 web search challenges that both beginners and experts must be aware of. Moreover, we will delve into the most effective solutions to overcome these difficulties.
Let's delve deeper into the world of web search and discover how to conquer these challenges!
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## IP Blocking
To prevent abuse and unauthorized web scraping, websites often employ blocking measures that rely on unique identifiers like IP addresses. When certain limits are exceeded or suspicious activities are detected, the website may ban the associated IP address, effectively preventing automated scraping.
Websites may also implement geo-blocking, which blocks IPs based on their geographical location, as well as other anti-bot measures that analyze IP origin and unusual usage patterns to identify and block IPs.
### Solution
Fortunately, there are several solutions to overcome IP blocking. The simplest approach involves adjusting your requests to adhere to the website's limits, controlling the rate of requests and maintaining a natural usage pattern. However, this approach significantly restricts the amount of data that can be scraped within a given timeframe.
A more scalable solution is to utilize a proxy service that incorporates IP rotation and retry mechanisms to evade IP blocking. It's important to note that web scraping using proxies and other circumvention methods may raise ethical concerns. Always ensure compliance with local and international data regulations and carefully review the website's terms of service (TOS) and policies before proceeding.
## CAPTCHAs
CAPTCHAs, short for Completely Automated Public Turing Tests to Tell Computers and Humans Apart, serve as a widely used security measure to impede web scrapers from accessing and extracting data from websites.
This system presents challenges that require manual interaction to prove the user's authenticity before granting access to the desired content. These challenges can take various forms, including image recognition, textual puzzles, auditory puzzles, or even analysis of user behavior.
### Solution
To overcome CAPTCHAs, one can either solve them or take measures to avoid triggering them. It is generally recommended to opt for the former approach, as it ensures data integrity, increases automation efficiency, provides reliability and stability, and complies with legal and ethical guidelines. Avoiding triggering CAPTCHA may result in incomplete data, increased manual operations, use of non-compliant methods, and exposure to legal and ethical risks. Therefore, addressing CAPTCHA is a more reliable and sustainable approach.
[Capsolver](https://www.capsolver.com/), for example, is a third-party service dedicated to solving Captchas. It offers an API that can be integrated directly into scraping scripts or applications.
By outsourcing Captcha solving to services like Capsolver, you can streamline the scraping process and reduce manual intervention. Sign up for a [free trial](https://dashboard.capsolver.com/dashboard/overview).
## Rate Limiting
Rate limiting is a method employed by websites to protect against abuse and different types of attacks. It sets limits on the number of requests a client can make within a given time frame. If the limit is exceeded, the website may throttle or block the requests using techniques such as IP blocking or CAPTCHA.
Rate limiting primarily focuses on identifying individual clients and monitoring their usage to ensure they stay within the set limits. Identification can be based on the client's IP address or utilize techniques like browser fingerprinting, which involves detecting unique client features. User-agent strings and cookies may also be examined as part of the identification process.
### Solution
There are several ways to get over rate limits. One simple approach is to control the frequency and timing of your requests to mimic more human-like behavior. This can include introducing random delays or retries between requests. Other solutions involve rotating your IP address and customizing various properties, such as the user-agent string and browser fingerprint.
## Honeypot Traps
Honeypot traps pose a significant challenge for web scraping bots, as they are specifically designed to deceive automated scripts. These traps involve the inclusion of hidden elements or links that are intended to be accessed only by bots.
The purpose of honeypot traps is to identify and block scraping activities, as real users would not interact with these hidden elements. When a scraper encounters and interacts with these traps, it raises a red flag, potentially leading to the scraper being banned from the website.
### Solution
To overcome this challenge, it is crucial to be vigilant and avoid falling into honeypot traps. One effective strategy is to identify and avoid hidden links. These links are typically configured with CSS properties such as `display: none` or `visibility: hidden`, making them invisible to human users but detectable by scraping bots.
By carefully analyzing the HTML structure and CSS properties of the web pages you are scraping, you can exclude or bypass these hidden links. This way, you can minimize the risk of triggering honeypot traps and maintain the integrity and stability of your scraping process.
It is important to note that respecting website policies and terms of service is essential when engaging in web scraping activities. Always ensure that your scraping activities align with the ethical and legal guidelines set by the website owners.
## Dynamic Content
In addition to rate limiting and blocking, web scraping presents challenges related to detecting and handling dynamic content.
Modern websites often incorporate a significant amount of JavaScript to enhance interactivity and dynamically render various parts of the user interface, additional content, or even entire pages.
With the prevalence of single-page applications (SPAs), JavaScript plays a crucial role in rendering almost every aspect of the website. Additionally, other types of web applications utilize JavaScript to asynchronously load content, allowing features like infinite scroll without the need for page refresh or reload. In such cases, parsing the HTML alone is insufficient.
To successfully scrape dynamic content, it is necessary to load and process the underlying JavaScript code. However, implementing this correctly in a custom script can be challenging. This is why many developers prefer utilizing headless browsers and web automation tooling such as Playwright, Puppeteer, and Selenium.
By leveraging these tools, you can emulate a browser environment, execute JavaScript, and obtain the fully rendered HTML, including any dynamically loaded content. This approach ensures that you capture all the desired information, even from websites heavily reliant on JavaScript for content generation.
## Slow Page Loading
When a website experiences a high volume of concurrent requests, its loading speed can be significantly affected. Factors such as page size, network latency, server performance, and the amount of JavaScript and other resources to load all contribute to this issue.
Slow page loading can cause delays in data retrieval for web scraping. This can slow down the entire scraping project, especially when dealing with multiple pages. It can also lead to timeouts, unpredictable scraping times, incomplete data extraction, or incorrect data if certain page elements fail to load properly.
### Solution
To address this challenge, it is recommended to use headless browsers like Selenium or Puppeteer. These tools allow you to ensure that a page is fully loaded before extracting data, avoiding incomplete or inaccurate information. Setting up timeouts, retries, or refreshes, and optimizing your code can also help mitigate the impact of slow page loading.
## Conclusion
We face several challenges when it comes to web scraping. These challenges include IP blocking, CAPTCHA verification, rate limiting, honeypot traps, dynamic content, and slow page loading. However, we can overcome these challenges by using proxies, solving CAPTCHAs, controlling request frequency, avoiding traps, leveraging headless browsers, and optimizing our code. By addressing these obstacles, we can improve our web scraping efforts, gather valuable information, and ensure compliance.
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
| lustove |
1,805,307 | Consistent Data Encryption in Android, iOS, and Flutter Apps with AES | Background In today’s digital world, ensuring data security is paramount. We entrust our... | 0 | 2024-03-29T11:02:38 | https://canopas.com/consistent-data-encryption-in-android-ios-and-flutter-apps-with-aes | ios, android, flutter, security | ## Background
In today’s digital world, ensuring data security is paramount. We entrust our devices with sensitive information, and protecting that data is crucial for us.
Maintaining consistent security practices can be challenging when developing apps for multiple platforms **(iOS, Android, Flutter)**.
> _**Data is like your diary — keep it private with encryption!**_
In this blog post, we’ll explore how to achieve this consistency using **AES encryption in iOS as well as in Android and Flutter.**
## Why Consistent Encryption Matters?
Building cross-platform apps is great, but ensuring data encrypted on one platform remains accessible on another is crucial.
Without consistent encryption, transitioning between devices like iPhone and Android can lead to inaccessible information.
**To tackle this challenge, we rely on the Advanced Encryption Standard (AES), which provides two key advantages.**
- **Efficiency —** It’s a strong encryption method that doesn’t slow down devices.
- **Platform Neutrality —** AES works equally well on Android, iOS, and other platforms.
With that we can achieve consistent data protection across all devices, ensuring users can access their information no matter which device they use.
## Introduction to AES
The Advanced Encryption Standard is a widely used symmetric encryption algorithm known for its security and efficiency, trusted by governments and security experts worldwide.
It operates on fixed-size data blocks and supports key lengths of 128, 192, or 256 bits using a symmetric key for both encryption and decryption. This means the **same secret key is used for both encryption and decryption.**
> AES-128 is widely used and recommended for most applications due to its balance between security and performance.
> However, for applications that require a higher level of security or have specific compliance requirements, AES-192 or AES-256 may be preferred.
The choice depends on the application’s security requirements and compliance standards.
## The Secret Ingredient: GCM Mode
In addition to AES encryption, we employ Galois/Counter Mode (GCM) for enhanced security. GCM offers two critical benefits:
- **Confidentiality:** Like AES, GCM ensures that only authorized users with the correct key can decrypt the data, maintaining confidentiality and protecting sensitive information from unauthorized access.
- **Authentication:** GCM adds an authentication tag to encrypted data, verifying whether it has been tampered with during transmission or storage. If the tag doesn’t match, decryption fails, preventing unauthorized data modification.
Our implementation utilizes AES in Galois/Counter Mode (GCM), providing authenticated encryption with associated data.
## Implementation in iOS
Let’s implement AES encryption and decryption in iOS using Swift and CryptoKit.
We’ll add the functionality within a class called AESEncryptionManager.
## Step 1: Use CryptoKit Framework
The CryptoKit framework provides high-level cryptographic primitives and algorithms, including support for AES/GCM.
```
import CryptoKit
```
## Step 2: AESEncryptionManager Class
This class encapsulates AES encryption and decryption methods. It provides a convenient interface for performing encryption and decryption operations.
```
class AESEncryptionManager {
static func encrypt(plainText: String, key: String, keySize: Int = 32) -> String? {
// Implementation of encryption method
}
static func decrypt(encryptedText: String, key: String, keySize: Int = 32) -> String? {
// Implementation of decryption method
}
}
```
## Step 3: Generating a Secure Encryption Key with Data Padding
Before encrypting our data, we need a strong and random encryption key, much like a sturdy lock for a safe. Weak or easily guessed keys pose risks, similar to using a simple password for securing valuables.
To make a strong key that works on all platforms, we can combine specific app data, such as unchangeable usernames, user IDs, some creation dates, etc.
For example, when encrypting a user's story, we merge their user ID with the story ID to ensure uniform encryption across platforms.
> Generated key must be identical in all the platforms, in order to achieve consistant encryption.
It's crucial to ensure that the key is of the correct size for AES encryption (typically 16, 24, or 32 bytes).
To achieve this, we provide an extension method called `padWithZeros`. This method pads the key data with zeros if its size is less than the target size.
```
extension Data {
func padWithZeros(targetSize: Int) -> Data {
var paddedData = self
// Get the current size (number of bytes) of the data
let dataSize = self.count
// Check if padding is needed
if dataSize < targetSize {
// Calculate the amount of padding required
let paddingSize = targetSize - dataSize
// Create padding data filled with zeros
let padding = Data(repeating: 0, count: paddingSize)
// Append the padding to the original data
paddedData.append(padding)
}
return paddedData
}
}
```
If the key data size (`dataSize`) is smaller than the target size, then the padding is needed.
A new `Data` object filled with zeros is created with a size equal to the difference between the target size and the current key data size.
Then the created zero padding is appended to the end of the existing key data using `paddedData.append(padding)`.
By employing this method, we ensure the generation of secure and consistent encryption keys, safeguarding our data across all platforms.
> Remember, just like a real lock, a lost or stolen key means anyone can access your stuff. Keeping your encryption key secure is vital for ultimate data protection!
## Step 4: Encryption Method
It converts the plaintext and key into data objects, creates a symmetric key using the key data, and then encrypts the data using AES.GCM.
```
static func encrypt(plainText: String, key: String, keySize: Int = 32) -> String? {
guard let data = plainText.data(using: .utf8), let keyData = key.data(using: .utf8)?.prefix(keySize) else {
return nil
}
let symmetricKey = SymmetricKey(data: keyData.padWithZeros(targetSize: keySize))
do {
let sealedBox = try AES.GCM.seal(data, using: symmetricKey, nonce: AES.GCM.Nonce()).combined
return sealedBox?.base64EncodedString() ?? nil
} catch {
print("AESEncryption: Encryption failed with error \(error)")
return nil
}
}
```
**This function takes three arguments:**
- `plainText`: — The secret message or data you want to encrypt.
- `key`: — The secret key used for encryption, is crucially important to keep confidential.
- `keySize`: — The size of the key in bytes. The default value is 32, which corresponds to a 256-bit key (considered the most secure option).
**Let’s break it down:**
- It first checks if the plainText and key can be converted into data using UTF-8 encoding.
— UTF-8 is a common character encoding that represents text as bytes.
- After the successful conversion, it ensures the key has the correct size by extracting the first keySize bytes.
— Remember, using a key with the wrong size can compromise encryption security.
- A SymmetricKey object is created using the padded key data, which ensures that the key has the correct size for the encryption algorithm.
- The actual encryption happens within a do-try-catch block.
— It uses AES.GCM.seal to encrypt the plain text using the AES-GCM algorithm with the generated SymmetricKey and a random nonce.
— The .combined property combines the encrypted data with additional authentication information for verification during decryption.
- If encryption is successful, the combined data from the SealedBox is converted into a base64 encoded string to make it more compact and easier to store or transmit.
## Step 5: Decryption Method
It reverses the encryption process by decoding the base64 encoded data, creating a sealed box from the combined data, and then decrypting it using the symmetric key.
```
static func decrypt(encryptedText: String, key: String, keySize: Int = 32) -> String? {
guard let combinedData = Data(base64Encoded: encryptedText), let keyData = key.data(using: .utf8)?.prefix(keySize) else {
return nil
}
let symmetricKey = SymmetricKey(data: keyData.padWithZeros(targetSize: keySize))
do {
let sealedBox = try AES.GCM.SealedBox(combined: combinedData)
let decryptedData = try AES.GCM.open(sealedBox, using: symmetricKey)
return String(data: decryptedData, encoding: .utf8)
} catch let error {
print("AESEncryption: Decryption failed with error \(error)")
return nil
}
}
```
**Here is the breakdown, of how it works…**
1. First, check if the `encryptedText` can be converted back into data using base64 decoding.
2. Similar to encryption, it extracts the first `keySize` bytes from the key data.
3. The `SymmetricKey` object is created using the padded key data.
4. The decryption happens within a `do-try-catch` block:
The decryption happens within a do-try-catch block:
- `try AES.GCM.SealedBox(combined: combinedData)`:
It creates a SealedBox object from the provided base64 encoded data.
- `try AES.GCM.open(sealedBox, using: symmetricKey)`:
It decrypts the data within the SealedBox using the key. If the authentication information matches, the decrypted data is obtained.
- `String(data: decryptedData, encoding: .utf8)`:
The decrypted data is converted back into a String using UTF-8 encoding.
**And we are done.**
This post only has iOS implementation, to read the complete guide including Android and Flutter encryption implementation please visit our full blog on **[Canopas.](https://canopas.com/consistent-data-encryption-in-android-ios-and-flutter-apps-with-aes)**
I encourage you to share your thoughts in the comments section below.
Your input not only enriches our content but also fuels our motivation to create more valuable and informative articles for you.
| cp_nandani |
1,805,517 | Don't Get Backlogged: Effective Monitoring for Healthy Pub/Sub | Introduction Google Pub/Sub is a powerful event messaging service, but even the most... | 0 | 2024-03-31T15:37:28 | https://dev.to/ajeesh/dont-get-backlogged-effective-monitoring-for-healthy-pubsub-1p0 | ## Introduction
Google Pub/Sub is a powerful event messaging service, but even the most robust system needs monitoring to ensure smooth operation. Basic monitoring like message count and acknowledge rate provide a starting point, but for true optimization, we need to delve deeper.
Only having basic monitoring restricts our visibility into Pub/Sub's health. We might miss critical issues like message backlog, slow delivery, and data loss. With this blog, I would like to deep dive into Monitoring PubSub next level.
## Level Up Your Monitoring with Pub/Sub Metrics
In this post, we'll examine Pub/Sub metrics that offer valuable insights into subscriber performance and message flow efficiency.
### Monitor Healthy Subscribers
**Monitor Message Backlog**
**Subscription/num_undelivered_messages:** This metric reveals the number of unacknowledged messages, a potential backlog indicator.
**Subscription/oldest_unacked_message_age:** This metric identifies the age of the oldest unacknowledged message to pinpoint potential bottlenecks.
**Monitor Delivery Health**
**Subscription/delivery_latency_health_score:** This metric offers a holistic view of message delivery health based on latency. It considers factors like:
- **Seek requests:** Frequent seeking indicates potential message delivery issues.
- **Negatively acknowledged (NACKed) messages:** Messages rejected by the subscriber due to errors.
- **Expired acknowledgment deadlines:** When a subscriber fails to acknowledge a message within the deadline.
- **Acknowledgment latencies**: Time taken by a subscriber to acknowledge a message.
- **Low utilization:** Underutilized subscriptions might not be scaling efficiently.
Delivery latency health score assigns a 0 (unhealthy) or 1 (healthy) for each above mentioned tracked criteria, providing a quick overview of your subscription's health.
The following is a screenshot of the metric plotted for a one-hour period using a stacked area chart. The combined health score goes up to 4, with a score of 1 for each criterion. However the utilization score drops down to 0.
**Subscription/ack_latencies:** This metric shows message processing latency and provides insights into subscriber performance. This also provide histograms of latencies, from which one can analyze latency distribution at different percentiles.
Here is an example of a PromQL query which calculates the 95th percentile latency of acknowledged messages for a specific Pub/Sub subscription ("order_subscription_v1") over the past 5 minutes
```
histogram_quantile(0.95, sum by (le)(rate(subscription_ack_latencies_bucket{ subscription_id="order_subscription_v1"}[5m])))
```
**Monitor Acknowledgment Deadline Expiration**
**Subscription/expired_ack_deadlines_count:** We can proactively identify situations where messages are redelivered continuously due to expired acknowledgment deadlines, potentially leading to duplicates.
**Monitor Undelivered Messages**
**Subscription/dead_letter_message_count:** This metric tracks messages deemed undeliverable by Pub/Sub and forwarded for further investigation to dead letter topic.
### Monitor Healthy Publishers
**Topic/send_request_count (grouped by response_code):** Analyze the volume of messages sent by publishers and identify any errors indicated by the response codes.
**Topic/send_request_count:** This metric reveals the overall volume of messages being sent by publishers.
**Topic/message_sizes:** Monitor the size of individual messages to ensure efficient message transmission.
## Beyond the Basics: Combining Metrics for Enhanced Monitoring
Combining above mentioned metrics unlocks even more powerful insights. For instance, tracking both oldest message count and high processing latency can help identify potential backpressure situations.
Here is an example of a PromQL query which checks for both a message backlog (old unacknowledged messages) and slow processing times (high acknowledgment latency) for the specified subscription.
```
subscription_oldest_unacked_message_age{subscription_id="order_subscription_v1"} > 60*60 and histogram_quantile(0.95, sum by (le)(rate(subscription_ack_latencies_bucket{subscription_id="order_subscription_v1"}[5m]))) > 60000
```
Another instance, tracking dead letter message count and oldest unacked message age can help to prevent data loss.
```
subscription_oldest_unacked_message_age{subscription_id="order_subscription_v1"} > 60*60*24 and sum(subscription_dead_letter_message_count{subscription_id="order_subscription_v1"}) > 1
```
**Conclusion**
By going beyond basic Pub/Sub monitoring and leveraging these valuable metrics, you can ensure a healthy and efficient event messaging system. This translates to robust applications, reliable message delivery, and a scalable infrastructure for your needs.
| ajeesh | |
1,805,568 | Map Styling for Web Developers — Quick Editing | Using the Vector Tile Style Editor: Strategies for Rapid Web Map Designing ... | 0 | 2024-03-29T15:54:11 | https://dev.to/c_yatteau/map-styling-for-web-developers-quick-editing-2bbh | webdev, beginners, tutorial, maps |
***Using the Vector Tile Style Editor: Strategies for Rapid Web Map Designing***
## Introduction
In my year and a half at Esri, I’ve learned a great deal. Coming into the GIS world with a math and computer science [background](https://medium.com/@c_yatteau/from-teaching-to-tech-what-ive-learned-so-far-2fa92fa60650), adapting to the geospatial technology world has been a bit challenging. I’ve learned many new things, and in this article, I will share one of the cool tricks I’ve picked up for creating more visually compelling mapping applications.
Let’s dive into the exciting world of map styling, where web development meets cartography. This is the first in a series of blogs I’ll be writing, designed to empower JavaScript developers with the magic of custom map creation. Today, we’ll scratch just the surface and explore the [Vector Tile Style Editor](https://vtse.arcgis.com/)’s (VTSE) Quick Edit option — a fast and easy way to customize your mapping applications.
## Getting Started
To begin, access the Vector Tile Style Editor (VTSE) at vtse.arcgis.com. With a simple login to your [ArcGIS account](https://developers.arcgis.com/sign-up/), you’ll be presented with an interface showing any previously customized vector tiles. To get started, press the green “New style” button in the top right corner. You’ll then choose a basemap from the various ArcGIS and OSM options. This will serve as your foundational canvas, the base starting point for how your map looks.
After selecting a basemap, the VTSE interface will open up, showing one large map with three mini-maps beneath, along with many styling options on the left-hand side. We’re going to focus on one piece of the styling panel, the very first option, Quick Edit.
## Quick Editing in VTSE
Designed for both ease and efficiency, Quick Edit offers a range of options to craft your map without diving into the intricate complexities of different features, sprites, and more. Within this playground, you have many general styling options to choose from. Let’s go through each of them.
### Color Theme
The first dropdown contains five different color schemes to select for your map’s style. Color schemes are systematic ways of choosing colors that work well together to create aesthetically pleasing designs. These color schemes are as follows:
* **Monochrome:** Focuses on a single color, utilizing shades, tints, and tones of that color. It is simplistic and elegant, often used to create a minimalistic look.
* **Analogous:** Consists of colors that are next to each other on the color wheel, usually comprised of one dominant, one supporting, and one complementary or contrasting color. The scheme is used to create harmonious, cohesive, and serene designs.
* **Triadic:** Involves three colors evenly spaced on the color wheel, forming a triangle. It is vibrant and playful while maintaining balance.
* **Complementary:** Made up of two colors that are opposite each other on the color wheel. This scheme creates high contrast and vivid looks but can be overwhelming if overused. It’s effective for drawing attention and creating a striking visual impact.
* **Compound:** A variant of the complementary scheme, using a base color and the two colors adjacent to its opposite on the color wheel. It provides strong visual contrast but with less tension than complementary, making it more versatile.
### Basemap Layer Groups
There are six different layer groups that represent various features of the physical and human-made environment. Below is a general overview of each of these categories:
- 🗺 **Land:** Represents the earth’s surface area not covered by water, including ground surfaces like forests, urban areas, fields, and deserts. This layer sets the foundational canvas of the map, providing the stage for other features to be overlaid.
- 💦 **Water:** Includes all bodies of water, such as rivers, lakes, oceans, and streams. The water layer is important for giving graphical context to define the landscape and influence the layout of features such as roads and boundaries.
- 🛣️ **Roads:** Encompasses all types of throughways, containing features like highways, main roads, minor streets, and paths. Roads are critical for depicting connectivity within and between regions, often serving as the primary focus in routing.
- 🛂 **Boundaries:** Political, administrative, and other demarcating lines such as countries, states, provinces, and property lines make up this layer. Boundaries are key to understanding jurisdictional and geographic divisions.
- 🏨 **Buildings:** Consists of individual structures and built-up areas, depicting residential homes, commercial, and public buildings. This layer adds depth and a three-dimensional context to the map.
- 🌳 **Nature:** Incorporates natural features, such as forests, parks, mountains, and grasslands. The nature category offers insights into land use, natural habitats, and environmental conditions.
Once you’ve finished styling the basemap layer groups, you have the ability to turn on the “Recolor icons & patterns” option. Note, however, that you will need to save the style before activating this feature.
### Label Styling
There are five options for styling labels in the Quick Edit panel. These allow you to manipulate how text elements appear on the map. The five label options are:
- **Label colors:** Set to the default of ‘Use selected colors’, when you click here, you’re given the option to ‘Pick label colors’, which allows you to change the color of the text on your map. There are two specific parts to changing label colors: label text and label halo. The label text color comprises the label itself, dominating the text’s look. The label halo is a border or glow around the text to help it stand out against any backgrounds.
- **Label contrast:** Refers to the difference in color and brightness between the text and the map background. This option can only be changed when using the default label colors. The four contrast categories are ‘Low’, ‘Medium’, ‘High’, and ‘Maximum’. The lower the contrast, the more difficult it becomes to distinguish between the text and background colors.
- **Language:** Select the language in which the labels are displayed. This option is most effective in a localized area for the chosen language. Otherwise, some place labels may not be affected by the language change.
- **Font:** Controls the typeface for the map labels with this dropdown. Choose from various font options with a range of typefaces from serif and sans-serif to more decorative styles, as well as font weight and style (e.g., italic).
- **Label size:** Controlled by incremental buttons, you can click the ‘Smaller’ or ‘Larger’ buttons to gradually vary the size of the labels on the map. Continuously clicking will increase or decrease the text size.
These different label stylings can be used to provide better visibility and integration with the map’s overall design. After styling your labels, ensure they are clear, readable, and aesthetically pleasing for maximum accessibility.
### Other Options
In the Quick Edit panel of the VTSE, additional options involve manipulating road size and randomizing your colors.
- **Road width:** Similar to ‘Label size’, you can customize the thickness of the roads by continuously pressing the ‘Narrower’ or ‘Wider’ button. Adjusting the road width can influence not only the map’s readability and visual appeal but also its functional clarity.
- **Randomize:** This ‘randomize colors’ option provides a way to quickly change the color scheme of all the map’s layers at once. This feature is useful for exploring and discovering new visual styles without manually picking the layer colors. It can be quite useful in the initial phases of map styling, leading to potentially new creative findings.
## Conclusion
The Quick Edit panel within the ArcGIS Vector Tile Style Editor serves as an excellent stylistic sandbox for web developers new to map styling. It makes personalizing maps fun and easy, while effectively conveying the desired visual message.
Stay tuned for my future articles, where we’ll div e deeper into the advanced styling features of the Vector Tile Style Editor, learn how to use these custom styles in a mapping application, and explore Photoshop-like effects, among other topics.
---
*This article was written by Courtney Yatteau, a Developer Advocate at [Esri](https://www.esri.com/en-us/home). The opinions in this article are solely Courtney’s opinions and do not necessarily represent the postings, strategies, or opinions of her employer. If you have any feedback, please like and/or comment. Also, if you have any questions or comments that you’d prefer to send privately, you can contact Courtney through [LinkedIn](https://www.linkedin.com/in/courtneyyatteau/), [Twitter](https://twitter.com/c_yatteau)*, *or [email](mailto:DeveloperOutreach@esri.com). If you’re considering a career switch, looking to get into tech, or curious about what it’s like to work at Esri, then please stay tuned for my future posts! You can also check out [Esri’s careers page](https://www.esri.com/en-us/about/careers/job-search) or [this video](https://youtu.be/nV4Ec_Qe4AQ) for more information.*
| c_yatteau |
1,805,753 | Começando com Three.js, imersão com 3D no navegador | Este artigo é a segunda parte do tutorial, recomendo que veja a primeira caso ainda não tenha visto -... | 0 | 2024-03-29T19:21:35 | https://dev.to/baltz/comecando-com-threejs-imersao-com-3d-no-navegador-3k8k | threejs, imersive, 3d, webgl | Este artigo é a segunda parte do tutorial, recomendo que veja a primeira caso ainda não tenha visto - [Parte 1](https://dev.to/baltz/comecando-com-threejs-renderizando-3d-no-navegador-3d3o)
Abaixo vou deixar um spoiler do que vamos desenvolver agora:
{% codepen https://codepen.io/baltazarparra/pen/eYoGVdW %}
Continuando do estado em que terminamos a primeira parte:
index.html
```html
<!DOCTYPE html>
<html lang="pt-br">
<head>
<meta charset="utf-8" />
<title>Meu primeiro 3D</title>
<style>
body {
margin: 0;
}
</style>
</head>
<body>
<canvas id="c"></canvas>
<script type="module" src="/main.js"></script>
</body>
</html>
```
```js
import * as THREE from "three";
function main() {
const canvas = document.querySelector("#c");
const renderer = new THREE.WebGLRenderer({ antialias: true, canvas });
const camera = new THREE.PerspectiveCamera(75, 2, 0.1, 5);
camera.position.z = 2;
const scene = new THREE.Scene();
const geometry = new THREE.BoxGeometry(1, 1, 1);
const material = new THREE.MeshBasicMaterial({ color: 0x44aa88 });
const cube = new THREE.Mesh(geometry, material);
scene.add(cube);
renderer.render(scene, camera);
}
main();
```
Já possuímos um modelo 3D renderizado no navegador. Agora, vamos adicionar uma camada de imersão para aprimorar nossa experiência. Ao final deste artigo, teremos um novo projeto 3D imersivo pronto para ser adicionado aos nossos destaques no GitHub.
Para começar, vamos tornar nosso Canvas responsivo a qualquer tamanho de tela. Isto pode ser feito adicionando o seguinte estilo:
index.html
```css
<style>
body, html {
margin: 0;
height: 100vh;
}
#c {
position: absolute;
height: 100%;
width: 100%;
display: block;
}
</style>
```
Vamos adicionar a propriedade "alpha" ao nosso Renderer e definir um tamanho ao Canvas usando o método setSize. Além disso, vamos ajustar a perspectiva da nossa câmera:
main.js
```js
const renderer = new THREE.WebGLRenderer({ alpha: true, antialias: true, canvas: canvas });
renderer.setSize(window.innerWidth, window.innerHeight);
const camera = new THREE.PerspectiveCamera(
75,
window.innerWidth / window.innerHeight,
0.1,
1000
);
```
Agora que temos um canvas responsivo que renderiza nosso modelo 3D corretamente em qualquer tamanho de tela, podemos começar a adicionar imersão à nossa experiência. Para isso, vamos começar a interagir com os movimentos do mouse:
main.js
```js
function render() {
document.addEventListener("mousemove", (event) => {
let mouseX = event.clientX;
let mouseY = event.clientY;
cube.rotation.x = mouseY * 0.008;
cube.rotation.y = mouseX * 0.0036;
});
renderer.render(scene, camera);
requestAnimationFrame(render);
}
```
Ótimo! Agora temos uma experiência imersiva com um modelo 3D. Conquistamos nossa pequena vitória do dia, e como bônus, vamos um pouco além (mas não fique mal acostumado). Vamos tornar nosso projeto mais atraente e digno de destaque no nosso GitHub, adicionando iluminação e explorando formas e materiais mais complexos.
main.js
```js
import * as THREE from "three";
function main() {
const canvas = document.querySelector("#c");
const renderer = new THREE.WebGLRenderer({
antialias: true,
canvas,
alpha: true,
});
renderer.setSize(window.innerWidth, window.innerHeight);
const fov = 75;
const near = 0.1;
const far = 1000;
const camera = new THREE.PerspectiveCamera(
fov,
window.innerWidth / window.innerHeight,
near,
far
);
camera.position.z = 30;
const scene = new THREE.Scene();
const geometry = new THREE.TorusKnotGeometry(10, 3, 100, 16);
const material = new THREE.MeshPhysicalMaterial({
metalness: 0, // High metalness for ruby-like shine
roughness: 0, // Low roughness for smooth, glossy surface
clearcoat: 0,
clearcoatRoughness: 1,
transmission: 0,
color: 0xaa1133,
});
const cube = new THREE.Mesh(geometry, material);
scene.add(cube);
renderer.render(scene, camera);
function render() {
document.addEventListener("mousemove", (event) => {
let mouseX = event.clientX;
let mouseY = event.clientY;
cube.rotation.x = mouseY * 0.008;
cube.rotation.y = mouseX * 0.0036;
});
renderer.render(scene, camera);
requestAnimationFrame(render);
}
requestAnimationFrame(render);
const light = new THREE.SpotLight(0xff22aa, 300, 1000);
light.position.set(1, 1, 10);
light.angle = 0.1;
light.penumbra = 10;
scene.add(light);
}
main();
```
e vamos aproveitar para atualizar nossa index.html
```html
<!DOCTYPE html>
<html lang="pt-br">
<head>
<meta charset="utf-8" />
<title>Meu primeiro 3D</title>
<style>
html,
body {
margin: 0;
height: 100%;
display: flex;
justify-content: center;
align-items: center;
background-color: #111;
font-size: 2em;
font-family: sans-serif;
}
#c {
position: absolute;
height: 100%;
width: 100%;
display: block;
opacity: 0.6;
}
</style>
</head>
<body>
<canvas id="c"></canvas>
<h1>Meu primeiro 3D</h1>
<script type="module" src="/main.js"></script>
</body>
</html>
```
Espero que tenham gostado 🤙 | baltz |
1,806,050 | Answer: Receive DEP0170 when connecting MongoDB Atlas with Node.js 20.3.1 | answer re: Receive DEP0170 when connecting... | 0 | 2024-03-30T05:42:17 | https://dev.to/mumtahina766/answer-receive-dep0170-when-connecting-mongodb-atlas-with-nodejs-2031-5a2p | {% stackoverflow 77859633 %} | mumtahina766 | |
1,806,147 | Pakistan vs Ireland 3 T20i in Dublin | In an electrifying T20 clash between Pakistan vs Ireland in Dublin, cricket fans witnessed a... | 0 | 2024-03-30T09:16:13 | https://dev.to/blogthirst/pakistan-vs-ireland-3-t20i-in-dublin-4pce | t20i, cricket, pakistan, ireland | In an electrifying T20 clash between **[Pakistan vs Ireland](https://blogthirst.com/pakistan-vs-ireland-3-t20i-in-dublin/)** in Dublin, cricket fans witnessed a thrilling showdown. Pakistan's batting prowess and Ireland's spirited defense created an enthralling spectacle. The match showcased intense competition, with Pakistan ultimately clinching victory, showcasing their dominance in the T20 format on an international stage. | blogthirst |
1,806,306 | Interactive 3D Watermelon | submission for DEV Challenge v24.03.20, CSS Art: Favorite Snack: Watermelon | 0 | 2024-03-30T15:02:18 | https://dev.to/alvaromontoro/interactive-3d-watermelon-c10 | frontendchallenge, devchallenge, css | ---
title: Interactive 3D Watermelon
published: true
tags: frontendchallenge, devchallenge, css
description: submission for DEV Challenge v24.03.20, CSS Art: Favorite Snack: Watermelon
cover_image: https://dev-to-uploads.s3.amazonaws.com/uploads/articles/d60mx2l6n0db15lfba9t.png
---
_This is a submission for DEV Challenge v24.03.20, CSS Art: Favorite Snack._
## Inspiration
<!-- What snack are you highlighting today? -->
WATERMELON!!!! 🍉
## Demo
(Click on the watermelon)
{% codepen https://codepen.io/alvaromontoro/pen/gOyGajx %}
## Journey
<!-- Tell us about your process, what you learned, anything you are particularly proud of, what you hope to do next, etc. -->
This is a second submission to the challenge 😳
While this demo uses CSS 3D, it also fakes it a little. This is because of HTML's" flat" nature. Drawing a solid element is not completely possible, so we create hollow versions of them that simulate the solid.
For this drawing, I created the basic shape (a semicircle) and replicated it 15 times, giving each of the slices/layers a slightly different angle. Thanks to that, we have an object that looks nice and three-dimensional at certain angles.
But this way of simulating solid 3D objects presents two main problems:
1. When the object is at a 90-degree angle, you can see through it! And as it is animated, you can see a "flash".
2. As the front and the back of the layers have the same background, the side view is not ideal as it mixes colors.
For the first issue, the solution was to add a perpendicular layer that is seen at 90-degree angles, avoiding the dreaded see-through flash.
For the second issue, I first changed the background of the in-between layers to a solid color (green), keeping only the red in the edge layers. Then added a pseudo-element (`:before`) to hide the red color by rotating it 180 degrees and adding `backface-visibility: hidden`.
Finally, after drawing the 3D watermelon, I made it interactive by adding an input of a type checkbox and turning the container into a label. That way, I could use the `:has()` selector to apply a mask to the layers when the checkbox is checked.
Adding the mask broke the pseudo-elements in the edges, so I replaced them with two new layers. Maybe not ideal, but it did the trick.
---
Some other information:
- It uses the `vmin` unit, so it responds to view frame changes, but you could use other units (change the `font-size` value, avoid percentages)
- To add additional perspective/3D effect, I added an inset `box-shadow` with semi-transparent black to give an idea of depth.
- Instead of copy-pasting the backgrounds or box shadows, I used CSS custom properties, so I just had to update a few values per layer.
---
This work is licensed under a [Creative Commons Attribution-NonCommercial 4.0 License](https://creativecommons.org/licenses/by-nc/4.0/). You are free to copy and share the code, but not to sell it or use it in commercial projects. Attribution is required.
<!-- Thanks for participating! -->
<!-- You are welcome! --> | alvaromontoro |
1,806,858 | Accessing the Command Line | Pengantar Bash Shell Sebuah baris perintah adalah antarmuka berbasis teks yang dapat... | 0 | 2024-03-31T08:00:00 | https://dev.to/hairynigga77/how-to-accessing-command-line-ej5 | ramadhanbersamaredhat, sebarkanlaluhitamkan | ## **Pengantar Bash Shell**
Sebuah baris perintah adalah antarmuka berbasis teks yang dapat digunakan untuk memasukkan instruksi ke dalam sistem komputer. Baris perintah Linux disediakan oleh sebuah program yang disebut shell. Berbagai opsi untuk program shell telah dikembangkan selama bertahun-tahun, dan pengguna yang berbeda dapat dikonfigurasi untuk menggunakan shell yang berbeda. Namun, sebagian besar pengguna tetap menggunakan default saat ini.
Shell default untuk pengguna di Red Hat Enterprise Linux adalah GNU Bourne-Again Shell (**bash**). Bash merupakan versi yang ditingkatkan dari salah satu shell yang paling sukses digunakan pada sistem UNIX-like, yaitu Bourne Shell (sh).
Ketika sebuah shell digunakan secara interaktif, ia menampilkan sebuah string saat menunggu perintah dari pengguna. Ini disebut sebagai prompt shell. Ketika seorang pengguna biasa memulai sebuah shell, prompt default berakhir dengan karakter $, seperti yang ditunjukkan di bawah ini.
**`[user@host ~]$ `**
Karakter $ digantikan dengan karakter # jika shell berjalan sebagai superuser, root. Ini membuatnya lebih jelas bahwa ini adalah shell superuser, yang membantu menghindari kecelakaan dan kesalahan yang dapat memengaruhi seluruh sistem. Prompt shell superuser ditunjukkan di bawah ini.
**`[root@host ~]# `**
Menggunakan bash untuk menjalankan perintah dapat menjadi sangat kuat. Shell bash menyediakan bahasa scripting yang dapat mendukung otomatisasi tugas. Shell ini memiliki kemampuan tambahan yang dapat menyederhanakan atau memungkinkan operasi yang sulit dilakukan dengan efisien menggunakan alat grafis.
## **Dasar-dasar Shell**
Perintah yang dimasukkan di prompt shell memiliki tiga bagian dasar:
1. **_Command_**, untuk perintah yang akan dijalankan.
2. **_Options_**, untuk menyesuaikan perilaku perintah.
3. **_Arguments_**, yang umumnya merupakan target dari perintah tersebut.
Perintah adalah nama program yang akan dijalankan. Ini dapat diikuti oleh satu atau lebih opsi, yang menyesuaikan perilaku perintah atau apa yang akan dilakukannya. Opsi biasanya dimulai dengan satu atau dua tanda strip (-a atau --all, misalnya) untuk membedakannya dari argumen. Perintah juga dapat diikuti oleh satu atau lebih argumen, yang sering menunjukkan target yang harus dioperasikan oleh perintah tersebut.
Sebagai contoh, perintah `usermod -L user01` memiliki sebuah perintah (**usermod**), sebuah opsi (-L), dan sebuah argumen (user01). Efek dari perintah ini adalah mengunci kata sandi dari akun pengguna user01.
## **Masuk ke Komputer Lokal**
Untuk menjalankan shell, Anda perlu masuk ke komputer pada sebuah terminal. Sebuah terminal adalah antarmuka berbasis teks yang digunakan untuk memasukkan perintah dan mencetak keluaran dari sistem komputer. Ada beberapa cara untuk melakukannya.
1. **Melalui Konsol Fisik**: Komputer dapat memiliki keyboard dan layar langsung yang terhubung kepadanya, disebut konsol fisik. Konsol fisik mendukung beberapa konsol virtual yang dapat menjalankan terminal terpisah. Setiap konsol virtual ini mendukung sesi login independen. Pengguna dapat beralih di antara konsol-konsol ini dengan menekan Ctrl+Alt dan tombol fungsi (F1 hingga F6) secara bersamaan. Setelah login dengan benar, pengguna akan mendapatkan prompt shell.
2. **Melalui Prompt Login Grafis**: Komputer juga dapat memberikan prompt login grafis di salah satu konsol virtual. Pengguna dapat menggunakan ini untuk masuk ke lingkungan grafis. Lingkungan grafis juga berjalan pada konsol virtual. Untuk mendapatkan prompt shell, pengguna harus memulai program terminal di lingkungan grafis. Prompt shell akan disediakan dalam jendela aplikasi program terminal grafis.
Pada Red Hat Enterprise Linux 8, jika lingkungan grafis tersedia, layar login akan berjalan pada konsol virtual pertama, disebut tty1. Lima prompt login teks tambahan tersedia pada konsol virtual dua hingga enam.
Pada Red Hat Enterprise Linux 8, terdapat beberapa hal terkait dengan pengelolaan sesi login dan lingkungan grafis:
1. Saat lingkungan grafis tersedia, layar login akan berjalan pada konsol virtual pertama (tty1), dan lima prompt login teks tambahan tersedia pada konsol virtual dua hingga enam.
2. Jika login dilakukan melalui layar login grafis, lingkungan grafis akan dimulai pada konsol virtual pertama yang tidak digunakan oleh sesi login lainnya. Biasanya, ini berarti konsol virtual kedua (tty2), kecuali jika konsol tersebut sedang digunakan oleh sesi login teks aktif, maka konsol virtual kosong berikutnya akan digunakan sebagai gantinya.
3. Layar login grafis terus berjalan pada konsol virtual pertama (tty1). Jika pengguna sudah masuk ke sesi grafis dan masuk sebagai pengguna lain atau beralih pengguna dalam lingkungan grafis tanpa keluar, lingkungan grafis baru akan dimulai pada konsol virtual kosong berikutnya.
4. Ketika pengguna keluar dari lingkungan grafis, konsol fisik secara otomatis beralih kembali ke layar login grafis pada konsol virtual pertama.
## **Masuk Melalui Jaringan**
Pengguna dan administrator Linux sering perlu mendapatkan akses shell ke sistem remote dengan menghubunginya melalui jaringan. Dalam lingkungan komputasi modern, banyak server tanpa kepala sebenarnya adalah mesin virtual atau berjalan sebagai instansi cloud publik atau privat. Sistem-sistem ini bukanlah fisik dan tidak memiliki konsol perangkat keras yang nyata. Mereka bahkan mungkin tidak menyediakan akses ke konsol fisik (simulasi) atau konsol serial mereka.
Pada Linux, cara paling umum untuk mendapatkan prompt shell di sistem remote adalah dengan menggunakan Secure Shell (**SSH**). Sebagian besar sistem Linux (termasuk Red Hat Enterprise Linux) dan macOS menyediakan program baris perintah OpenSSH ssh untuk tujuan ini.
Dalam contoh ini, seorang pengguna dengan prompt shell pada mesin host menggunakan **ssh** untuk masuk ke sistem Linux `remotehost` sebagai pengguna `remoteuser`:
**`[user@host ~]$ ssh remoteuser@remotehost`**
*`remoteuser@remotehost's password:`* **`password`**
**`[remoteuser@remotehost ~]$`**
Perintah **ssh** mengenkripsi koneksi untuk mengamankan komunikasi dari penyadapan atau pembajakan kata sandi dan konten.
Beberapa sistem (seperti contoh cloud baru) tidak mengizinkan pengguna menggunakan kata sandi untuk masuk dengan **ssh** untuk keamanan yang lebih ketat. Cara alternatif untuk mengautentikasi ke mesin jarak jauh tanpa memasukkan kata sandi adalah melalui _autentikasi kunci publik_.
Dengan metode autentikasi ini, pengguna memiliki berkas identitas khusus yang berisi _kunci pribadi_, yang setara dengan kata sandi, dan dirahasiakan. Akun mereka di server dikonfigurasikan dengan _kunci publik_ yang cocok, yang tidak harus dirahasiakan. Ketika masuk, pengguna dapat mengonfigurasi ssh untuk menyediakan kunci privat dan jika kunci publik yang cocok dipasang pada akun di server jarak jauh tersebut, maka ia akan memasukkan mereka tanpa meminta kata sandi.
Pada contoh berikut, seorang pengguna dengan prompt shell pada `host` mesin masuk ke host jarak jauh sebagai `remoteuser` menggunakan **ssh**, menggunakan autentikasi kunci publik. Opsi `-i` digunakan untuk menentukan berkas kunci privat pengguna, yaitu `mylab.pem`. Kunci publik yang cocok sudah diatur sebagai kunci resmi dalam akun `remoteuser`.
**`[user@host ~]$ ssh -i mylab.pem remoteuser@remotehost`**
**`[remoteuser@remotehost ~]$`**
Untuk agar ini berfungsi, file kunci privat harus dapat dibaca hanya oleh pengguna yang memiliki file tersebut. Pada contoh sebelumnya, di mana kunci privat berada dalam file `mylab.pem`, perintah **chmod 600 mylab.pem** dapat digunakan untuk memastikan hal ini. Cara mengatur izin file dibahas secara lebih detail dalam bab selanjutnya.
Pengguna juga mungkin memiliki kunci privat yang dikonfigurasi untuk dicoba secara otomatis, namun pembahasan tersebut melebihi cakupan bagian ini. Referensi di akhir bagian ini berisi tautan ke informasi lebih lanjut tentang topik ini.
## **Log Out**
Ketika Anda selesai menggunakan shell dan ingin keluar, Anda dapat memilih salah satu dari beberapa cara untuk mengakhiri sesi. Anda dapat memasukkan perintah **exit** untuk mengakhiri sesi shell saat ini. Alternatifnya, selesaikan sesi dengan menekan **Ctrl + D** .
Berikut ini adalah contoh pengguna keluar dari sesi **SSH**:
**`[remoteuser@remotehost ~]$ exit`**
*`logout `*
*`Connection to remotehost closed.`*
**`[user@host ~]$`** | hairynigga77 |
1,806,873 | Link vào nhà cái fun88 2024 | https://viva88.ws/fun88/ Link vào nhà cái fun88 2024✔️Đăng ký Fun88✔️Nạp tiền Fun88✔️Tải App... | 0 | 2024-03-31T08:44:27 | https://dev.to/fun88viva88/link-vao-nha-cai-fun88-2024-koo | https://viva88.ws/fun88/ Link vào nhà cái fun88 2024✔️Đăng ký Fun88✔️Nạp tiền Fun88✔️Tải App Fun88
https://fun88viva88.webflow.io/
https://fun88viva88.zohosites.com/
https://fun88viva88.hashnode.dev/
https://hackmd.io/@fun88viva88 | fun88viva88 | |
1,806,878 | Razlika između 'type' i 'interface' u TypeScriptu | TypeScript je sjajan alat koji donosi nove mogućnosti, koje ne postoje u JavaScriptu. Glavna... | 0 | 2024-04-13T12:52:47 | https://dev.to/bslaven/razlika-izmedu-type-i-interface-u-typescriptu-4jha | webdev, javascript, react, typescript | ## TypeScript je sjajan alat koji donosi nove mogućnosti, koje ne postoje u JavaScriptu. Glavna stvar koju TypeScript razlikuje od JavaScripta je to što možemo definisati tipove podataka sa kojim radimo.
## Jedan od načina da se definiše tip podataka je korištenje tipa, odnosno `type` aliasa, a drugi je korištenje interfejsa, odnosno `interface`. Upravo razlika između ova dva načina je tema ovog teksta.
---
#### Uvod
U ovom uvodu ću da postavim osnovno okruženje i kontekst koji će biti isti za sve sljedeće primjere, da se ne bi ponavljao u narednim poglavljima.
Recimo na primjer da imam neku komponentu `User` koja će dobiti podatke o korisniku u `props` objektu koji ćemo prema TypeScript konvenciji opisati/definisati sa `UserProps`.
Ako pokušam da opišem objekat sa `UserProps`, a taj `UserProps` ne postoji nigdje TypeScript će me upozoriti.
---
#### Osnovna sintaksa
Postoje dvije osnovne sintaksičke razlike. Tip koristi ključnu riječ `type`, a interfejs `interface`.
Druga razlika je što tip koristi znak jednakosti, a interfejs ne koristi.
U narednim primjerima ću nazive tipova počinjati sa slovom 'T', a interfejse sa slovom 'I'. Ovo se može pronaći negdje kao konvencija, ali nije neophodno raditi.
---
#### Proširivanje i naslijeđivanje
Recimo na primjer da imam nekog korisnika kog sam definisao preko tipa kao `TUserProps`, ali kasnije dodajem definiciju za administratora koji ima sva svojstva kao i korisnik, plus još neka.
Kod tipova se ovo zove ukrštanje ili preklapanje (ENG: 'intersection'), odnosno dva tipa se preklapaju po nekim svojstvima. Znak ampersand ('&') sam iskoristio da spojim već definisani TUserProps i nova svojstva koja želim da dodati administratoru.
Interfejs sa druge strane koristi ključnu riječ `extends` da spoji dvije definicije. Ova sintaksa će biti poznata ljudima koji koriste klase u JavaScriptu/TypeScriptu.
Kod interfejsa se ova tehnika zove naslijeđivanje. Dakle, objekat IAdminProps će naslijediti sva svojstva koja postoje u objektu IUserProps `ime` i `godine`, pa sam mu dodao `ulogu`.
---
#### Objekti i sve ostalo
Interfejsom se mogu definisati samo objekti, dok se tipom mogu definisati objekti, ali i sve ostalo.
Ako želim da definišem objekat mogu koristiti interfejs ili tip.
Međutim, ako želim da definišem bilo šta drugo moram koristiti tip.
Nije moguće koristiti interfejs za definisanje primitivnih tipova.
---
#### Unije
Tipove je moguće koristiti da definisanje unija (skupova). Lako se može dogoditi na primjer da želimo da pohranimo neku primitivnu vrijednost, ali i da eventualno pratimo niz takvih vrijednosti.
---
#### Utility tipovi
U TypeScriptu postoje 'utility' tipovi koji nam omogućuju neke posebne funkcionalnosti. Recimo da npr. želim da iskoristim `Omit` utility tip kako bi izostavio neko svojstvo objekta.
Sa `type` aliasom bi to izgledalo ovako.
Ovo je tehnički moguće uraditi i sa interfejsom, ali uz mnogo ružniju sintaksu.
Morao sam iskoristiti ključnu riječ `extends`, a morao sam staviti i prazne vitičaste zagrade na kraju deklaracije.
---
#### Tuple
Tupl (ENG. Tuple) je specijalna vrsta niza u TypeScriptu. To je niz koji ima fiksno definisanu dužinu. Dužina tupla se ne može naknadno mijenjati.
Ako bi želio definisati neki tip kao tupl preko `type` aliasa, to je lako uraditi.
Kao što se vidi iz primjera korištenje interfejsa je mnogo obimnije i teže za čitanje. Tip je za ove situacije mnogo bolje rješenje.
---
#### Izvlačenje
Tip se može iskoristiti da se izvuče neka struktura iz objekta. Recimo na primjer da imam neki objekat `stan`. Ako želim da izvučem npr. svojstvo 'specifikacije' iz tog objekta tip je sjajno rješene.
Iskoristio sam svojstvo iz objekta kako bi definisao tip.
Ovo je moguće i sa interfejsom, ali kao što se vidi iz primjera sa unijama i tuplovima mora se koristiti ključna riječ `extends`, tako da je pristup sa tipovima mnogo bolji.
---
#### Spajanje i ponovna deklaracija
Jedna od situacija na koje se sasvim realno može naići je da se na projektu nađu definisane dvije strukture sa istim imenom. Ako se to dogodi sa interfejsom one će jednostavno biti spojene.
Kao što se vidi u primjeru sva svojstva iz svakog interfejsa su obavezna u novom objektu `user`. Ovo može biti korisno, ako se na primjer koristi neka biblioteka iz koje dobijamo neki interfejs, pa želimo da ga proširimo.
Međutim, može biti i veoma loše jer lako može doći do neželjenih izmjena interfejsa.
Sa tipovima ovo nije moguće. TypeScript će odmah izbaciti grešku ukoliko se pojave dva tipa sa istim nazivom.
---
#### Klase
Postoji jedno pogrešno mišljenje na koje se može naići kada se radi sa TypeScriptom, a to je da je klase moguće opisati/definisati samo pomoću interfejsa.
Klasu je najnormalnije moguće definisati sa tipom.
Bilo koja od ove dvije opcije je validna.
#### Ukratko
- Interfejs može definisati samo objekte, tip može objekte i sve ostalo.
- Sintaksa za proširivanje, unije, utility tipove je mnogo bolja ako se koristi `type` alias.
- Interfejsi su otvoreni i podložni neželjenim izmjenama, dok su tipovi zatvoreni.
- Nije tačno da se klase mogu definisati samo pomoću interfejsa. Klase bez problema mogu biti definisane tipom. | bslaven |
1,806,925 | How to submit hcaptcha after solving? | Hi, I am using twocaptcha solving hcapcthca in this... | 0 | 2024-03-31T09:44:33 | https://dev.to/sakibovi123/how-submit-hcaptcha-after-solving-3c06 | Hi, I am using twocaptcha solving hcapcthca in this website:
https://www.bakecaincontrii.com/u/login/
I am solving the hcaptcha and putting the code inside textarea but it's not submitting. I am not sure how to solve this kind of issue as I am new in this type of work.
Here what I tried so far:
def solve_captcha(self):
solved = False
api_key = os.getenv("TWO_CAPTCHA_APIKEY")
solver = TwoCaptcha(api_key)
site_url = "https://www.bakecaincontrii.com/"
code = None
try:
print("Solving captcha......")
result = solver.hcaptcha(
sitekey="ced407c5-238b-4144-9b59-4dcd58092d36",
url="https://www.bakecaincontrii.com/u/login/"
)
except Exception as e:
print(e)
else:
code = result["code"]
script = f"document.querySelector(" + "'" + '[name="h-captcha-response"]' + "'" + ").innerHTML = " + "'" + code + "'"
self.execute_script(script)
time.sleep(10)
return str(code) | sakibovi123 | |
1,806,956 | Innovate With YouTube Watch Data Using Gandalf SDK | Originally published on Gandalf’s official blog, but I wanted to share it here to reach as many... | 0 | 2024-03-31T10:46:55 | https://dev.to/timigod/innovate-with-youtube-watch-data-using-gandalf-sdk-2g63 | javascript, node, ux, webdev | _Originally published on [Gandalf’s official blog](https://blog.gandalf.network/preview/v4Qb6h6Jg1w6XrUVlF0j), but I wanted to share it here to reach as many developers as much as possible._
But first, my thoughts:
- For the first time, it’s now possible to programmatically tell if a person watched a particular YouTube video, how much they watched etc.
- I wonder what this could unlock for creators. At the very least they can restrict merch access/discounts to their true fans.
- They could also see other videos their top fans like (this is an incentive to give those discounts) - which could spark video ideas/collaborations.
---
Today, we're launching [Build Bounties](https://build.gandalf.network/).
We're calling on all developers: build innovative apps using Gandalf's SDK and WIN thousands of dollars in [Gems](https://docs.gandalf.network/concepts/gems) 💎.
For our [first bounty](https://build.gandalf.network/bounty/d47929ba-821d-41e5-a954-b1904a128303), you can win $1000 💎 by building apps that help YouTube creators connect better with their top viewers!
This is just the first of many bounties. Spread the word to as many builders as you can. We can't wait to see what you build.
| timigod |
1,807,415 | Guessing Number Game using Hyperswarm. | Hello 🤗 Today, I will explain how to create a guessing number game using Javascript, NodeJS, and... | 0 | 2024-04-23T18:48:06 | https://dev.to/giulianaolmos/guessing-number-game-using-hyperswarm-1p42 | node, javascript, backend, hyperswarm |
Hello 🤗
Today, I will explain how to create a guessing number game using Javascript, NodeJS, and Hyperswam. I will also talk about this package, how it works, and what it is for.
I will leave the table content here to help you understand how this post's topics are divided more easily.
<u>Table Of Contents</u>
1. [HyperSwarm](#hyperswarm)
2. [The structure of the game](#game-structure)
3. [Code](#code)
+ [Prepare environment](#code-environment)
+ [Index.js - Main function](#code-indexjs)
+ [Server](#code-serverjs)
+ [Client](#code-clientjs)
+ [Game](#code-gamejs)
4. [Demo](#demo)
5. [Bye Bye](#bye)
---
### HyperSwarm <a name="hyperswarm"></a>
What is **Hyperswarm**? What is it for?
Well, first of all, I wanted to talk about this package that Tether created. Hyperswam is a package that helps you create peers to find and connect between them, announcing a common 'topic.'
What is a **peer**? It is the way we call the participants in a P2P network.
If you want to know more about this, you can check [my post](https://dev.to/giulianaolmos/what-is-a-p2p-peer-to-peer-network-3mcc), where I go through the topic :D
> These are some important links.
> Github => https://github.com/holepunchto/hyperswarm
> Documentation => https://docs.pears.com/building-blocks/hyperswarm
---
### The structure of the game <a name="game-structure"></a>
Hyperswam is an excellent tool for creating P2P networks, BUT this game will use peers in a server-client architecture. It is easy to understand how the peers interact in this type of architecture if client-server is the only architecture you know.
The flow is very simple:
- The server will randomly choose a number between 1 and 100.
- The first user that connects to the game will start the game.
- The following users can join and play in the same party.
- Every time a player guesses a number, the server makes a check and updates the game's status, then sends the updated status to all the connected players.
- When someone guesses the number, the server notifies the players, and the game starts again.
---
### Code <a name="code"></a>
Let's go
---
#### Prepare environment <a name="code-environment"></a>
Before starting, you should have Node installed on your computer.
You can download it from [here](https://nodejs.org/en/download/).
After this, open the terminal in the folder where you want to start your project. Run
```
npm init
```
and complete all the steps to initiate your node project.
Then, you have to install two packages to start to work.
```
npm install hyperswarm readline
```
**Readline** will provide an interface for reading data from the console. This means we can guess the number using the console without creating a front end.
---
#### Index.js - Main function <a name="code-indexjs"></a>
Once we have installed the packages, we will start to work on our `index.js`
```
const { CLI } = require("./cli");
const { Server } = require("./server");
const { Client } = require("./client");
async function main() {
const cli = new CLI();
const nickname = await cli.askTerminal("What is your nickname? ");
const lowerCaseNickname = nickname.toLowerCase();
if (lowerCaseNickname === "server") {
//const server = new Server();
} else {
//const client = new Client(nickname);
}
console.log(`Welcome to the game, ${nickname}!`);
}
main();
```
Also, we need to create a module for reading that gets exported as CLI. This code creates the interface in the console.
`cli.js`
```
const rl = require("readline");
let readline;
class CLI {
constructor() {}
async askTerminal(question) {
if (!readline) {
readline = rl.createInterface({
input: process.stdin,
output: process.stdout,
});
}
return new Promise((resolve) => {
readline.question(question, (input) => resolve(input));
});
}
}
module.exports = { CLI };
```
Then, run your project with `npm run start`
The console will ask you for your nickname; if you type "server," you will start the peer that will work as the server in charge of managing the game. Otherwise, you will start the peer that acts as a client (or player) to join the game.
We haven't added the code to create the client and the server yet, so you will just see a console log with your nickname.
---
#### Server <a name="code-serverjs"></a>
The server is a class. I will create a new instance of the server module when the user types "server" in the console after running `npm run start.`
This is a basic UML of the class.
```
+---------------------+
| Server |
+---------------------+
| -server: Hyperswarm |
| -players: Map |
| -clients: Array |
| -game: Game |
+---------------------+
| +constructor() |
| +handleConnection( |
| Socket, PeerInfo) |
| +isValidGuess(int) |
| +respontToClients( |
| String) |
| +initializeGame() |
+---------------------+
```
Now, there are some lines that I want to comment on. Server is an instance of Hyperswarm.
So, as I mentioned before, the peers need a topic to connect with each other. To join the topic, we need to use
```
swarm.join(topic, [options])
```
**topic** is a 32-byte Buffer, and **options** is an object that contains both options server and client and a boolean to indicate how the peer should act.
In this case,
```
{
server: true,
client: false,
}
```
For the topic, I will create a doc called `constant.js`
```
const GAME_CHANNEL = "hyperswarm-guessing-game";
module.exports = {
GAME_CHANNEL,
};
```
Once the peer connects to the network, we must indicate how to react to some events. In this case, we will use
```
swarm.on('connection', (socket, peerInfo) => {})
```
Emitted whenever the swarm connects to a new peer. This means the server will do something every time a new peer (a player) connects with them.
Inside that function, I will handle the connections to store the data from the players. I will use that information to determine which connections the servers had and where I have to send messages with the game's status.
Also, we will have a `socket.on()`, which is the server receiving and showing the messages from players.
```
const Hyperswarm = require("hyperswarm");
const { GAME_CHANNEL } = require("./constants");
const { Game } = require("./game");
class Server {
constructor() {
this.server = new Hyperswarm();
this.players = new Map();
this.clients = [];
this.game = new Game();
const topic = Buffer.alloc(32).fill(GAME_CHANNEL);
this.server.join(topic, {
server: true,
client: false,
});
this.handleConnection = this.handleConnection.bind(this);
this.server.on("connection", this.handleConnection);
}
handleConnection(socket, peerInfo) {
console.log("New connection ");
const publicKey = peerInfo.publicKey.toString("hex");
if (this.players.size) {
if (!this.players.has(publicKey)) {
console.log("New player ");
this.players.set(publicKey, true);
this.clients.push(socket);
}
this.respontToClients(
this.game.lastClue ?? "Guess a number between 1 and 100:"
);
} else {
console.log("First player");
this.players.set(publicKey, true);
this.clients.push(socket);
this.initializeGame();
}
socket.on("data", (data) => {
const jsonData = JSON.parse(data.toString());
console.log(`Server: ${jsonData.nickname} guessed ${jsonData.guess}`);
const guessedNumber = parseInt(jsonData.guess);
if (this.isValidGuess(guessedNumber)) {
if (this.game.isStarted) {
if (guessedNumber === this.game.numberToGuess) {
const message = `User ${jsonData.nickname} guessed ${jsonData.guess} and it's correct!\n The game is over! \n A new game will start soon.`;
this.respontToClients(message);
this.game.isEnded = true;
this.initializeGame();
} else {
if (guessedNumber > this.game.numberToGuess) {
this.game.lastClue = `User ${jsonData.nickname} guessed ${jsonData.guess} and it's too high!`;
} else if (guessedNumber < this.game.numberToGuess) {
this.game.lastClue = `User ${jsonData.nickname} guessed ${jsonData.guess} and it's too low!`;
}
this.respontToClients(this.game.lastClue);
}
}
} else {
const message = `User ${jsonData.nickname} guessed ${jsonData.guess} and it's not a valid guess. Please guess a number between 1 and 100.`;
this.respontToClients(message);
}
});
}
isValidGuess(guess) {
if (guess < 1 || guess > 100) {
return false;
}
return true;
}
respontToClients(message) {
for (const client of this.clients) {
client.write(
JSON.stringify({
type: "game-update",
message,
})
);
}
}
initializeGame() {
this.game.startGame();
this.respontToClients("Game started! Guess a number between 1 and 100:");
}
}
module.exports = { Server };
```
---
#### Client <a name="code-clientjs"></a>
```
+---------------------+
| Client |
+---------------------+
| -nickname: String |
| -client: Hyperswarm |
| -cli: CLI |
| -topic: Buffer |
| -connection: Socket |
| -handleConnection: |
| Function |
+---------------------+
| +constructor(String)|
| +handleConnection( |
| Socket, PeerInfo) |
| +askGuess() |
+---------------------+
```
In the client, I will use `swarm.join(topic, [options])` where
```
{
server: false,
client: true,
}
```
And `swarm.on('connection', (socket, peerInfo) => {})` will inform us when we connect with the server.
```
const Hyperswarm = require("hyperswarm");
const { GAME_CHANNEL } = require("./constants");
const { CLI } = require("./cli");
class Client {
constructor(nickname) {
this.nickname = nickname;
this.client = new Hyperswarm();
this.cli = new CLI();
this.topic = Buffer.alloc(32).fill(GAME_CHANNEL);
this.client.join(this.topic, {
server: false,
client: true,
});
this.handleConnection = this.handleConnection.bind(this);
this.client.on("connection", this.handleConnection);
}
handleConnection(socket, peerInfo) {
console.log("Client connected to server!");
this.connection = socket;
socket.on("data", (data) => {
const jsonData = JSON.parse(data.toString());
if (jsonData.type === "game-update") {
console.log(jsonData.message);
this.askGuess();
}
});
}
askGuess() {
this.cli.askTerminal("> ").then((number) => {
this.connection.write(
JSON.stringify({
nickname: this.nickname,
guess: number,
})
);
});
}
}
module.exports = { Client };
```
---
#### Game <a name="code-gamejs"></a>
```
+---------------------+
| Game |
+---------------------+
| -isStarted: Boolean |
| -numberToGuess: int |
| -isEnded: Boolean |
| -lastGuess: int |
| -lastClue: String |
+---------------------+
| +constructor() |
| +getNumberToGuess() |
| +startGame() |
+---------------------+
```
In the server, we make an instance of the game. This is the code to initialize the game and the logic to choose the number.
```
class Game {
constructor() {
this.isStarted = false;
this.numberToGuess = 0;
this.isEnded = false;
this.lastGuess = null;
this.lastClue = null;
}
getNumberToGuess() {
return Math.floor(Math.random() * 100) + 1;
}
startGame() {
this.numberToGuess = this.getNumberToGuess();
this.isStarted = true;
console.log("Number to guess: ", this.numberToGuess);
}
}
module.exports = { Game };
```
---
#### Demo <a name="demo"></a>
Before running the code, you must remember to uncomment the lines in `index.js`.
This is the [link](https://github.com/GiulianaEOlmos/p2p-guessing-number-game) to the GitHub repo.
Now, ✨we have a game working.✨
1 - Starting server
2 - The first player joins the game
3 - The server starts the game
4 - The player guesses a number
5 - Another player joins the game
6 - The server is notified about the new player
7 - A resume of the game and the end.
---
#### Bye Bye <a name="bye"></a>
I hope you enjoyed creating this game and have understood more about how hyperSwarm works.
I want to mention that I took the main idea from [here](https://github.com/brymartinez/hyperswarm-guessing).
Thank you so much for reading. 💖
Please let me know your thoughts and if you would add something else to the game.
See you in the next posts. 🚀
| giulianaolmos |
1,807,454 | Big Mumbai Login | https://bigmumbaigame.xyz/ | 0 | 2024-04-01T04:14:19 | https://dev.to/bigmumbailogin/big-mumbai-login-4k5a | https://bigmumbaigame.xyz/
 | bigmumbailogin | |
1,807,874 | Exploring the Versatility of Web Scraping APIs for Data Extraction | In the digital era, accessing and analyzing data from the web is paramount for businesses,... | 0 | 2024-04-01T11:57:58 | https://dev.to/sameeranthony/exploring-the-versatility-of-web-scraping-apis-for-data-extraction-52o0 | webdev, javascript, beginners, data |
In the digital era, accessing and analyzing data from the web is paramount for businesses, researchers, and developers to gain insights and drive decision-making. Web scraping APIs have emerged as indispensable tools, offering a convenient and efficient way to extract structured data from websites. This article delves into the significance of web scraping APIs and their role in facilitating seamless data extraction.
**[Web scraping APIs](https://zenscrape.com/)** provide users with a streamlined approach to extracting data from websites programmatically. By leveraging APIs, users can automate the process of data retrieval, eliminating the need for manual intervention and saving time and effort in the data collection process.
One of the primary benefits of web scraping APIs is their ability to handle the complexities of web scraping tasks effectively. APIs abstract away the technical details of web scraping, such as handling dynamic content, navigating through paginated pages, and bypassing CAPTCHA challenges, allowing users to focus on defining their data extraction requirements.
Moreover, web scraping APIs offer users the flexibility to customize their scraping tasks to suit their specific needs. APIs typically provide parameters and options that enable users to specify the data they want to extract, filter out irrelevant content, and define scraping intervals or frequency. This customization capability empowers users to tailor their scraping operations to extract precisely the data they require.
Furthermore, web scraping APIs contribute to improved reliability and scalability in data extraction efforts. By offloading the scraping process to dedicated servers or cloud-based infrastructure, APIs ensure consistent performance and uptime, even when dealing with large volumes of data or complex scraping tasks. Additionally, APIs often incorporate advanced caching mechanisms and error handling strategies to minimize disruptions and ensure seamless data retrieval.
Additionally, web scraping APIs facilitate access to a diverse range of data sources across the web, including e-commerce platforms, social media networks, news websites, and more. By providing a standardized interface for interacting with websites, APIs enable users to extract data from various sources efficiently, regardless of the underlying technologies or structures.
Moreover, web scraping APIs play a crucial role in enabling data-driven decision-making and analysis for businesses and organizations. By retrieving structured data from websites, APIs empower users with valuable insights into market trends, competitor activities, consumer behavior, and more. This data can be used to inform strategic decisions, optimize marketing campaigns, and identify growth opportunities in various industries.
In conclusion, web scraping APIs offer users a powerful and versatile solution for extracting structured data from websites efficiently and programmatically. By simplifying the complexities of web scraping tasks and providing customization options, APIs enable users to automate data extraction processes and access valuable insights from the web. As the demand for data-driven insights continues to grow, the role of web scraping APIs will remain crucial in facilitating data extraction and analysis across diverse domains and industries. | sameeranthony |
1,808,364 | Unlocking the Power of Workshop Manuals PDF: Your Comprehensive Guide | Introduction: In the realm of automotive maintenance and repair, Workshop Manuals PDF are the holy... | 0 | 2024-04-01T20:46:17 | https://dev.to/dwsm21/unlocking-the-power-of-workshop-manuals-pdf-your-comprehensive-guide-238e | Introduction:
In the realm of automotive maintenance and repair, Workshop Manuals PDF are the holy grail for both professionals and enthusiasts alike. These digital resources provide an invaluable repository of knowledge, offering step-by-step instructions, diagrams, and troubleshooting tips tailored to specific vehicles. In this comprehensive guide, we'll delve into the world of Workshop Manuals PDF, exploring their importance, where to find them, and how to make the most of these digital treasures.
Understanding Workshop Manuals PDF:
**[Workshop Manuals PDF](https://downloadworkshopmanuals.com/)** serve as comprehensive guides for repairing, servicing, and maintaining vehicles of various makes and models. Unlike their printed counterparts, PDF versions offer the convenience of digital accessibility, enabling users to access information swiftly from their devices. These manuals cover everything from routine maintenance procedures to complex repairs, empowering users to tackle automotive challenges with confidence.
Finding Reliable Workshop Manuals PDF:
The internet is brimming with websites offering Workshop Manuals PDF for download. However, not all sources are created equal. It's essential to prioritize reliability and authenticity when selecting a platform to download Workshop Manuals PDF. Look for websites endorsed by manufacturers or reputable automotive forums to ensure the accuracy and completeness of the manuals.
Choosing the Right Workshop Manuals PDF:
With countless Workshop Manuals PDF available online, choosing the right one can be overwhelming. Start by identifying the specific make, model, and year of your vehicle to narrow down your options. Opt for manuals that cover your vehicle's exact specifications, as generic manuals may lack the specific details needed for precise repairs and maintenance tasks.
Navigating Download Options:
Once you've identified a reliable source for Workshop Manuals PDF, the next step is navigating the download process. Most websites offer PDF downloads in a straightforward manner, allowing users to access the manuals with just a few clicks. Look for platforms that offer user-friendly interfaces and quick download speeds to streamline the process.
Organizing Your Workshop Manuals PDF:
As your collection of Workshop Manuals PDF grows, organization becomes paramount. Create a dedicated folder on your device or cloud storage platform to store all your manuals systematically. Consider organizing them by vehicle make, model, and year for easy retrieval when needed. Additionally, creating backups ensures that you always have access to your manuals, even in the event of device failure or data loss.
Utilizing Workshop Manuals PDF Effectively:
Workshop Manuals PDF are powerful resources that offer more than just repair instructions. Take advantage of the detailed diagrams, troubleshooting tips, and maintenance schedules to enhance your automotive knowledge and skills. Whether you're performing routine maintenance or tackling a challenging repair, refer to your Workshop Manuals PDF for guidance every step of the way.
Staying Updated:
Vehicles evolve with advancements in technology and engineering, necessitating updates to Workshop Manuals PDF. Stay informed about revisions and updates to ensure that you're working with the most current and accurate information. Many websites offer notifications or newsletters to keep users informed about new releases and revisions to their manuals.
Conclusion:
Workshop Manuals PDF are indispensable tools for anyone involved in automotive maintenance and repair. By understanding how to find, download, and utilize these digital resources effectively, you empower yourself to tackle automotive challenges with confidence and expertise. Embrace the power of Workshop Manuals PDF and take your automotive skills to new heights. | dwsm21 | |
1,808,612 | What is Internet Control Message Protocol (ICMP)? | What is ICMP? ICMP, short for Internet Control Message Protocol, is utilized by network... | 0 | 2024-04-02T04:56:48 | https://dev.to/shivamchamoli18/what-is-internet-control-message-protocol-icmp-4ina | icmp, icmpprotocol, cybersecurity, infosectrain |
## **What is ICMP?**
ICMP, short for Internet Control Message Protocol, is utilized by network devices like routers to communicate error messages and operational status regarding the network’s conditions. Network devices typically generate ICMP messages in response to errors, such as when a packet cannot be delivered to its destination or when a router needs to communicate that it is experiencing congestion.
ICMP messages are an important part of the Internet’s infrastructure, as they provide feedback about the network’s status and help diagnose and troubleshoot network problems. Some common uses of ICMP include ping, traceroute, and path MTU discovery.
## **How Does ICMP Work?**
Here’s how ICMP works:
● **ICMP messages are encapsulated in IP packets:** ICMP messages are encapsulated in IP packets just like any other network traffic. The ICMP message is placed in the data portion of the IP packet, with the ICMP header and data fields following the IP header.
● **ICMP message types:** ICMP messages are identified by a type field in the ICMP header, specifying the message type being sent. Many types of ICMP messages exist, including Echo-Request, Echo-Reply, Time Exceeded, Destination Unreachable, and Redirect.
● **ICMP message processing:** When a network device receives an IP packet with an ICMP message, it processes the message according to its type. For example, if the device receives an Echo Request message, it will respond with an Echo Reply message.
● **Error reporting:** ICMP messages are often used to report network errors. For example, suppose a router receives a packet that cannot be delivered to its destination. In such scenarios, it will produce a Destination Unreachable message and return it to the packet’s origin.
● **Diagnostic tools:** Diagnostic tools like ping and traceroute leverage ICMP messages to assess network connectivity and trace the route packets follow from one host to another.
## **Uses of ICMP**
An ICMP is primarily used for error reporting and diagnostics in IP networks. Here are some common uses of ICMP:
● **Ping:** The ping utility employs ICMP Echo Request and Echo Reply messages to check network connections and calculate the time delay or latency between two hosts.
● **Traceroute:** The traceroute utility uses ICMP Time Exceeded messages to map the path packets take between two hosts. Each router along the path responds with an ICMP Time Exceeded message, indicating that the TTL has expired.
● **Path MTU discovery:** ICMP messages are used to discover the Maximum Transmission Unit (MTU) size that can be used for a particular path between two hosts. This is important for preventing fragmentation and ensuring that packets can be delivered efficiently.
● **Network error reporting:** ICMP messages are generated by network devices to report errors, such as when a packet cannot be delivered to its destination or when a router needs to communicate that it is experiencing congestion.
● **Network management:** ICMP messages can be used for network management tasks, such as ping sweeps to identify active hosts on a network and ping flooding to test the resilience of network devices to large amounts of ICMP traffic.
## **About InfosecTrain**
[Infosectrain](https://www.infosectrain.com/) is a leading security and technology training and consulting services provider with expertise in IT security training and information security services. InfosecTrain is a global provider of comprehensive training and consulting services. InfosecTrain offers comprehensive [Cybersecurity training certifications](https://www.infosectrain.com/cybersecurity-certification-training/) designed to equip learners with the knowledge and skills necessary to defend against evolving cyber threats. Our courses cover a wide range of topics, including ethical hacking, system security, network security, and various compliance standards, providing participants with practical, hands-on experience. | shivamchamoli18 |
1,836,862 | JOINS IN SQL | Being a SQL nerd you've probably heard of joins. SQL JOINS combine rows from different tables on... | 0 | 2024-04-28T19:08:20 | https://dev.to/johnkyalo/joins-in-sql-4en9 | datascience, database, sql, data | _Being a SQL nerd you've probably heard of joins._
SQL JOINS combine rows from different tables on related columns.
**INNER JOIN:**
This being the most common type of join, inner join combines rows from two tables based on a related column between them. Basically, a field that exists in both tables.
Sometimes you can just write it as JOIN.
**LEFT JOIN:**
Retrieves all records from the left table with the corresponding matches in the right table. If there is no match in the right table, NULL values are returned for values in the right column.
**RIGHT JOIN:**
Look at this as the opposite of Left join. Retrieves all records from the right table with the corresponding matches on the left table. Again, if no match found, NULL values are returned as well.
**FULL OUTER JOIN:**
This type of join returns all records from both tables regardless of a match or not.
For cases where there is no match, NULL values as well are returned for the columns without a corresponding row.
**CROSS JOIN:**
I usually think it is a special type of JOIN...No condition imposed. (ON clause)
It returns a cartesian product of two tables. combining each row from the first table with each row from the other table.
While on JOINS, there are two clauses that appear as much:
_UNION VS UNION ALL_
Used to combine results from two or more queries into a single result set.
UNION automatically removes the duplicates that arise between the queries.
The idea is to generate a unique result set.
Unlike UNION, UNION ALL does not remove duplicates. It simply combines all results, including duplicates if any.
This means UNION ALL is faster than UNION as it does not need to check for duplicates and eliminate.
_Happy querying!_
| johnkyalo |
1,836,887 | Unleashing the Power of Expert Opinions: Introducing OpinionEs Expert | In a world brimming with choices, making informed decisions can often feel like navigating a... | 0 | 2024-04-28T20:27:56 | https://dev.to/ellialva317/unleashing-the-power-of-expert-opinions-introducing-opiniones-expert-39en | webdev, javascript, programming | In a world brimming with choices, making informed decisions can often feel like navigating a labyrinth blindfolded. Whether you're on the hunt for the perfect gadget, contemplating a new skincare regimen, or pondering which restaurant to try next, the sheer abundance of options can be overwhelming. [This is where OpinionEs Expert comes to the rescue.](https://opinionesexpert.com/)
Welcome to OpinionEs Expert, your go-to destination for expert opinions on a vast array of products and services. From tech gadgets to fashion trends, from home appliances to wellness products, we've got you covered with insightful reviews and analyses from seasoned experts.
At OpinionEs Expert, we understand the importance of trustworthy guidance in today's crowded marketplace. That's why we've curated a team of knowledgeable specialists, each an authority in their respective fields, to provide you with unbiased opinions and valuable insights. Whether it's a detailed breakdown of the latest smartphone, a comparison of top-rated vacuum cleaners, or a review of the hottest fashion trends, our experts are here to empower you with the knowledge you need to make confident decisions.
But OpinionEs Expert is more than just a repository of reviews; it's a community of like-minded individuals passionate about sharing their experiences and opinions. Our platform facilitates meaningful discussions, allowing users to engage with experts and fellow consumers alike. Whether you're seeking advice, sharing your own experiences, or simply exploring new ideas, [OpinionEs Expert](https://opinionesexpert.com/) offers a vibrant space where opinions are valued and respected.
So, how does OpinionEs Expert work? It's simple. Just browse our website to discover a wealth of expert reviews covering a diverse range of topics. Looking for a specific product or service? Use our intuitive search function to find what you need quickly and easily. Once you've found the information you're looking for, dive into the reviews, ratings, and discussions to gain a deeper understanding of your options.
But our commitment to providing valuable insights doesn't stop there. At OpinionEs Expert, we're constantly evolving and expanding our offerings to better serve our community. Whether it's introducing new categories, featuring guest experts, or implementing user-friendly features, we're dedicated to enhancing your experience and helping you make informed decisions with confidence.
In a world inundated with information, finding reliable guidance can be a daunting task. That's why [OpinionEs Expert](https://opinionesexpert.com/) is here to simplify the process, offering a one-stop destination for expert opinions you can trust. Whether you're a tech enthusiast, a fashion aficionado, or a wellness seeker, join us on a journey of discovery as we unlock the power of expert opinions together. | ellialva317 |
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