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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1,881,199 | Let's Discuss On Analytics | Hi Everybody, i'm Antonio, CEO & Founder at Litlyx. I discovered that to start a discussion with... | 0 | 2024-06-08T08:29:14 | https://dev.to/litlyx/lets-discuss-on-analytics-1a42 | discuss | Hi Everybody, i'm Antonio, CEO & Founder at [Litlyx](https://litlyx.com).
I discovered that to start a discussion with you all i need the tag #discuss. that's great!
I want to talk with you all about Analytics.
## What problem are you facing in the current Analytics Landscape? Do you have any product you are using to track user behaviour?
I will love to engage in the comments too!
Do you want to support an Open-Source project?? [Git Hub Repo here!](https://github.com/Litlyx/litlyx).
| litlyx |
1,881,198 | The Best Programming Languages for Modern Web Browsers | When it comes to programming languages for web browsers, several key languages and technologies are... | 0 | 2024-06-08T08:29:11 | https://dev.to/karthik_n/the-best-programming-languages-for-modern-web-browsers-2p1a | webdev, web3, programming, productivity | When it comes to programming languages for web browsers, several key languages and technologies are essential for building modern web applications. Here are the best and most widely used programming languages for web browsers:
### 1. **JavaScript**
- **Overview**: JavaScript is the most fundamental and widely used language for web development. It is the only language that web browsers natively understand and execute for client-side scripting.
- **Use Cases**: Dynamic content, interactive elements, form validation, animations, AJAX, and single-page applications (SPA).
### 2. **TypeScript**
- **Overview**: TypeScript is a superset of JavaScript that adds static typing and other features to enhance development efficiency and code quality. It compiles to plain JavaScript.
- **Use Cases**: Large-scale applications, projects where type safety and maintainability are crucial, and development teams that prefer stricter code structure.
### 3. **HTML (HyperText Markup Language)**
- **Overview**: HTML is not a programming language but a markup language essential for structuring web pages. It is the backbone of any web content.
- **Use Cases**: Document structure, content placement, and linking to other resources like CSS and JavaScript.
### 4. **CSS (Cascading Style Sheets)**
- **Overview**: CSS is another non-programming language used to style HTML content. It defines the look and layout of web pages.
- **Use Cases**: Visual design, responsive layouts, animations, and transitions.
### 5. **WebAssembly (Wasm)**
- **Overview**: WebAssembly is a binary instruction format that allows high-performance applications to run in the browser. It enables languages like C, C++, and Rust to run on the web.
- **Use Cases**: Performance-critical applications, games, video and image editing tools, and any application requiring near-native performance.
### 6. **Dart**
- **Overview**: Dart is an open-source, client-optimized language developed by Google. It is used with the Flutter framework for building web, mobile, and desktop applications.
- **Use Cases**: Cross-platform applications, especially those using the Flutter framework.
### 7. **Elm**
- **Overview**: Elm is a functional language that compiles to JavaScript. It is designed for building reliable and maintainable web applications.
- **Use Cases**: Web applications where reliability and maintainability are paramount, especially for front-end development.
### 8. **CoffeeScript**
- **Overview**: CoffeeScript is a language that compiles to JavaScript. It offers a more concise syntax and aims to enhance JavaScript's readability and writeability.
- **Use Cases**: Projects where developers prefer a more readable and concise syntax while still leveraging JavaScript's capabilities.
### 9. **ReasonML (ReScript)**
- **Overview**: ReasonML is a syntax extension and toolchain for OCaml, which compiles to JavaScript. It aims to bring type safety and functional programming features to JavaScript.
- **Use Cases**: Complex front-end applications where type safety and functional programming paradigms are beneficial.
### 10. **Python (via Transpilers like Brython)**
- **Overview**: While not natively supported by browsers, Python can be used in the browser through transpilers like Brython, which convert Python code to JavaScript.
- **Use Cases**: Educational purposes, prototyping, and projects where Python's readability and simplicity are preferred.
### Conclusion
JavaScript remains the cornerstone of web browser programming, with TypeScript providing enhanced features for larger projects. HTML and CSS are essential for structuring and styling web content. WebAssembly opens the door for performance-intensive applications, while other languages like Dart, Elm, and ReasonML offer unique benefits for specific use cases. Each of these languages and technologies can be chosen based on the project's requirements and the development team's expertise. | karthik_n |
1,881,197 | Explore the Benefits of LAHayeSIK at Columbus LASIK Vision | LASIK surgery has long been celebrated as a groundbreaking procedure that helps millions of people... | 0 | 2024-06-08T08:27:28 | https://dev.to/columbuslasikvision/explore-the-benefits-of-lahayesik-at-columbus-lasik-vision-3090 | LASIK surgery has long been celebrated as a groundbreaking procedure that helps millions of people achieve clear vision without the need for glasses or contact lenses. At Columbus LASIK Vision, we are committed to providing our patients with the most advanced and effective treatments available. One such innovation is LAHayeSIK, a cutting-edge technology that enhances the safety, precision, and outcomes of LASIK surgery. Here, we explore the numerous benefits of LAHayeSIK and why it might be the perfect choice for your vision correction needs.
**What is LAHayeSIK?**
LAHayeSIK is an advanced LASIK procedure that integrates a multifunctional instrument capable of performing multiple tasks during surgery. This instrument provides superior control, minimizes contamination risks, and improves overall surgical outcomes. Columbus LASIK Vision is proud to offer this state-of-the-art treatment, providing patients with an unparalleled LASIK experience.
**Key Benefits of LAHayeSIK Technology**
**Enhanced Safety:**
LAHayeSIK technology significantly reduces the risk of contamination and infection during surgery. The multifunctional instrument isolates the surgical field, preventing contaminants from entering and ensuring a cleaner, safer surgical environment.
**Greater Precision and Control:**
The LAHayeSIK instrument allows for precise control over eye movement, shifting the responsibility from the patient to the surgeon. This increased control ensures more accurate laser application, leading to better visual outcomes.
**Shorter Procedural Times:**
By consolidating multiple functions into a single instrument, LAHayeSIK reduces the overall duration of the surgery. Shorter procedural times mean less stress on the patient and a more efficient surgical process.
**Reduced Need for Secondary Procedures:**
The precision and effectiveness of LAHayeSIK technology minimize the likelihood of needing enhancement surgeries. Patients can enjoy optimal vision correction with fewer follow-up procedures.
**Lower Incidence of Side Effects:**
Patients who undergo LAHayeSIK experience fewer side effects, such as glare, halos, and night vision problems. The technology's ability to correct higher-order aberrations results in clearer, sharper vision.
**Rapid Recovery:**
LAHayeSIK promotes faster re-adhesion of the corneal flap, reducing recovery time. Patients can return to their daily activities sooner and enjoy their improved vision more quickly.
**Consistent Outcomes:**
The standardized processes facilitated by LAHayeSIK technology ensure reliable and consistent results. Patients can expect high-quality outcomes that meet or exceed their vision correction goals.
**The LAHayeSIK Procedure at Columbus LASIK Vision**
**Comprehensive Consultation:**
Your journey to better vision begins with a thorough consultation at Columbus LASIK Vision. During this visit, we will conduct a detailed eye examination to determine your suitability for the LAHayeSIK procedure.
**Customized Treatment Plan:**
Based on your eye examination and vision needs, a personalized treatment plan will be developed. This plan takes into account the unique characteristics of your eyes to ensure the best possible results.
**Surgery Day:**
On the day of your surgery, your eyes will be numbed with anesthetic drops. The LAHayeSIK procedure will be performed, ensuring precise, safe, and effective vision correction.
**Postoperative Care:**
After the procedure, you will receive detailed instructions for postoperative care. Our team will monitor your recovery to ensure you achieve the best possible outcome.
**Why Choose Columbus LASIK Vision for LAHayeSIK?**
**Expertise:**
Our highly skilled and experienced LASIK surgeons ensure you receive the highest standard of care.
**Advanced Technology:**
[Columbus LASIK Vision](https://www.columbuslasikvision.com/
) is equipped with the latest advancements in LASIK technology, including the innovative LAHayeSIK instrument. We are dedicated to providing our patients with the best and most effective treatments available.
Personalized Care:
We understand that each patient is unique, and we tailor our treatments to meet your specific needs and vision goals. Our personalized approach ensures you receive the best possible care and results.
LAHayeSIK technology represents a significant advancement in LASIK surgery, offering enhanced safety, precision, and outcomes. At Columbus LASIK Vision, we are proud to offer this innovative procedure to our patients, helping them achieve clearer, sharper vision with fewer risks and faster recovery times. If you are considering LASIK surgery, explore the benefits of LAHayeSIK at Columbus LASIK Vision and take the first step towards a brighter, clearer future. Contact us today to schedule your consultation and learn more about this revolutionary vision correction option.
| columbuslasikvision | |
1,881,196 | Legacy No More: Deprecated JavaScript Methods to Know About | Here are some methods and features in JavaScript that have been deprecated or are considered obsolete... | 0 | 2024-06-08T08:26:34 | https://dev.to/karthik_n/legacy-no-more-deprecated-javascript-methods-to-know-about-5gkb | Here are some methods and features in JavaScript that have been deprecated or are considered obsolete and should be avoided in modern code:
### 1. **`escape()` and `unescape()`**
These functions were used for encoding and decoding strings but have been deprecated in favor of `encodeURI()`, `encodeURIComponent()`, `decodeURI()`, and `decodeURIComponent()`.
```javascript
// Deprecated
const encoded = escape('Hello World!');
const decoded = unescape(encoded);
// Modern
const encodedURI = encodeURI('Hello World!');
const decodedURI = decodeURI(encodedURI);
```
### 2. **`document.write()`**
This method is still functional but considered bad practice as it can overwrite the entire document if used after the page has loaded.
```javascript
// Deprecated
document.write('<h1>Hello World!</h1>');
// Modern alternative
document.body.innerHTML = '<h1>Hello World!</h1>';
```
### 3. **`with` Statement**
The `with` statement is deprecated as it makes code difficult to understand and debug.
```javascript
// Deprecated
with (obj) {
a = 1;
b = 2;
}
// Modern alternative
obj.a = 1;
obj.b = 2;
```
### 4. **`__proto__`**
Directly accessing the `__proto__` property is deprecated. Use `Object.getPrototypeOf()` and `Object.setPrototypeOf()` instead.
```javascript
// Deprecated
const proto = obj.__proto__;
// Modern alternative
const proto = Object.getPrototypeOf(obj);
```
### 5. **`Function.prototype.arguments` and `Function.prototype.caller`**
These properties are deprecated due to their potential to create security issues and non-standard behavior.
```javascript
function example() {
// Deprecated
console.log(example.caller);
console.log(arguments);
}
// Modern alternative
function example(...args) {
console.log(args);
}
```
### 6. **`String.prototype.substr()`**
`substr()` is deprecated in favor of `substring()` and `slice()`.
```javascript
// Deprecated
const str = 'Hello World';
const subStr = str.substr(1, 4); // 'ello'
// Modern alternatives
const subStr1 = str.substring(1, 5); // 'ello'
const subStr2 = str.slice(1, 5); // 'ello'
```
### 7. **`Event.returnValue`**
This property is deprecated. Use `Event.preventDefault()` instead.
```javascript
element.addEventListener('click', (event) => {
// Deprecated
event.returnValue = false;
// Modern alternative
event.preventDefault();
});
```
### 8. **`NodeIterator.expandEntityReferences`**
This property has been deprecated. It's not needed in modern web development as the parser handles entities automatically.
```javascript
// Deprecated
const iterator = document.createNodeIterator(document.body, NodeFilter.SHOW_ALL, null, false);
```
### 9. **`XMLHttpRequest` Synchronous Requests**
Synchronous XMLHttpRequest is deprecated and should be avoided in favor of asynchronous requests or `fetch()`.
```javascript
// Deprecated
const xhr = new XMLHttpRequest();
xhr.open('GET', 'https://api.example.com/data', false); // false makes it synchronous
xhr.send();
// Modern alternative
fetch('https://api.example.com/data')
.then(response => response.json())
.then(data => console.log(data));
```
### 10. **`HTMLDocument.prototype.all`**
The `all` property is deprecated. Use standard DOM methods like `document.querySelectorAll()` instead.
```javascript
// Deprecated
const elements = document.all;
// Modern alternative
const elements = document.querySelectorAll('*');
```
These deprecated features should be avoided in modern JavaScript development to ensure compatibility, security, and maintainability of your code. | karthik_n | |
1,881,195 | Enhance Your Code: The Latest and Greatest JavaScript Methods | Here are some of the latest and most useful JavaScript methods that have been introduced in recent... | 0 | 2024-06-08T08:26:08 | https://dev.to/karthik_n/enhance-your-code-the-latest-and-greatest-javascript-methods-463 | Here are some of the latest and most useful JavaScript methods that have been introduced in recent versions of ECMAScript (ES2020, ES2021, ES2022, and ES2023):
### 1. **`String.prototype.replaceAll()`**
Replaces all occurrences of a substring in a string.
```javascript
const str = 'foo bar foo';
const newStr = str.replaceAll('foo', 'baz');
console.log(newStr); // baz bar baz
```
### 2. **`Promise.allSettled()`**
Returns a promise that resolves after all of the given promises have either resolved or rejected.
```javascript
const promises = [
Promise.resolve(1),
Promise.reject('error'),
Promise.resolve(3)
];
Promise.allSettled(promises).then((results) => {
results.forEach((result) => console.log(result.status));
});
// fulfilled
// rejected
// fulfilled
```
### 3. **`Logical Assignment Operators`**
Combines logical operations with assignment.
```javascript
let a = 1;
a ||= 2; // a = a || 2
console.log(a); // 1
let b = 0;
b &&= 2; // b = b && 2
console.log(b); // 0
let c = null;
c ??= 3; // c = c ?? 3
console.log(c); // 3
```
### 4. **`Nullish Coalescing Operator (??)`**
Provides a default value when the left-hand side is `null` or `undefined`.
```javascript
const foo = null ?? 'default value';
console.log(foo); // default value
```
### 5. **`Optional Chaining (?.)`**
Allows safe access to deeply nested properties.
```javascript
const user = { address: { street: 'Main St' } };
const street = user?.address?.street;
console.log(street); // Main St
```
### 6. **`BigInt`**
A built-in object that provides a way to represent whole numbers larger than `2^53 - 1`.
```javascript
const largeNumber = BigInt(123456789012345678901234567890);
console.log(largeNumber); // 123456789012345678901234567890n
```
### 7. **`WeakRef` and `FinalizationRegistry`**
Allows creation of weak references to objects and registers a cleanup callback for when the object is garbage collected.
```javascript
let target = { data: 'some data' };
const weakRef = new WeakRef(target);
const registry = new FinalizationRegistry((heldValue) => {
console.log(`Cleaned up ${heldValue}`);
});
registry.register(target, 'some data');
target = null;
// Later, when garbage collected, "Cleaned up some data" will be logged.
```
### 8. **`Array.prototype.at()`**
Allows relative indexing in arrays.
```javascript
const array = [10, 20, 30, 40];
console.log(array.at(-1)); // 40
```
### 9. **`Object.hasOwn()`**
A safer alternative to `Object.prototype.hasOwnProperty`.
```javascript
const obj = { key: 'value' };
console.log(Object.hasOwn(obj, 'key')); // true
```
### 10. **`Top-level await`**
Allows using `await` at the top level of modules.
```javascript
// In a module file (e.g., module.mjs)
const data = await fetchData();
console.log(data);
```
### 11. **`Relative indexing method for Strings`**
The `at()` method is also available for strings.
```javascript
const str = 'hello';
console.log(str.at(-1)); // 'o'
```
### 12. **`Object.fromEntries()`**
Transforms a list of key-value pairs into an object.
```javascript
const entries = new Map([
['foo', 'bar'],
['baz', 42]
]);
const obj = Object.fromEntries(entries);
console.log(obj); // { foo: 'bar', baz: 42 }
```
These methods and operators provide more flexibility and efficiency in handling common programming tasks. | karthik_n | |
1,881,194 | Boost Your JavaScript Skills with These Expert Tips | Sure, here are some useful JavaScript tricks that can help you in your development: 1.... | 0 | 2024-06-08T08:23:26 | https://dev.to/karthik_n/boost-your-javascript-skills-with-these-expert-tips-3pa3 | webdev, javascript, beginners, programming | Sure, here are some useful JavaScript tricks that can help you in your development:
### 1. **Destructuring Assignment**
You can extract values from arrays or properties from objects into distinct variables.
```javascript
// Array Destructuring
const [first, second] = [10, 20];
console.log(first); // 10
console.log(second); // 20
// Object Destructuring
const { name, age } = { name: 'Alice', age: 25 };
console.log(name); // Alice
console.log(age); // 25
```
### 2. **Template Literals**
Use backticks `` ` `` for strings that include variables or expressions.
```javascript
const name = 'Alice';
const greeting = `Hello, ${name}!`;
console.log(greeting); // Hello, Alice!
```
### 3. **Default Parameters**
You can set default values for function parameters.
```javascript
function greet(name = 'Guest') {
return `Hello, ${name}!`;
}
console.log(greet()); // Hello, Guest!
console.log(greet('Alice')); // Hello, Alice!
```
### 4. **Arrow Functions**
A shorter syntax for writing functions.
```javascript
const add = (a, b) => a + b;
console.log(add(2, 3)); // 5
```
### 5. **Spread Operator**
Spread operator `...` allows an iterable such as an array to be expanded.
```javascript
const arr1 = [1, 2, 3];
const arr2 = [4, 5, 6];
const combined = [...arr1, ...arr2];
console.log(combined); // [1, 2, 3, 4, 5, 6]
```
### 6. **Rest Parameters**
Rest parameters allow you to represent an indefinite number of arguments as an array.
```javascript
function sum(...numbers) {
return numbers.reduce((acc, curr) => acc + curr, 0);
}
console.log(sum(1, 2, 3, 4)); // 10
```
### 7. **Short-circuit Evaluation**
Using `&&` and `||` for conditionals.
```javascript
const user = { name: 'Alice' };
const username = user.name || 'Guest';
console.log(username); // Alice
const isLoggedIn = true;
isLoggedIn && console.log('User is logged in'); // User is logged in
```
### 8. **Optional Chaining**
Access deeply nested properties without worrying if an intermediate property is null or undefined.
```javascript
const user = { address: { street: 'Main St' } };
const street = user?.address?.street;
console.log(street); // Main St
```
### 9. **Nullish Coalescing Operator**
Provides a default value when the left-hand side is `null` or `undefined`.
```javascript
const foo = null ?? 'default value';
console.log(foo); // default value
```
### 10. **Debouncing**
Optimize performance by limiting the rate at which a function executes.
```javascript
function debounce(func, delay) {
let debounceTimer;
return function() {
const context = this;
const args = arguments;
clearTimeout(debounceTimer);
debounceTimer = setTimeout(() => func.apply(context, args), delay);
};
}
const handleScroll = debounce(() => {
console.log('Scrolled!');
}, 300);
window.addEventListener('scroll', handleScroll);
```
These tricks can help you write cleaner, more efficient, and more readable JavaScript code. | karthik_n |
1,881,193 | My effective approach to explore new codebase | Whenever I explore a new codebase, whether it is open source or not, I look for three things: How to... | 0 | 2024-06-08T08:21:39 | https://dev.to/shenoudafawzy/my-effective-approach-to-explore-new-codebase-3173 | go, software, opensource | Whenever I explore a new codebase, whether it is open source or not, I look for three things:
**How to log my first "Hello, World!" message**
This serves as my flashlight, helping me explore and tinker with different parts of the codebase.
**Are there any background tasks/jobs?**
This is crucial because these tasks can cause unexpected behavior. For example, I might wonder why a certain part isn't working as expected, only to find out later that a background worker is flipping some field after a few minutes. Understanding this can prevent a lot of frustration and confusion.
**The configurations**
To see if there is any third party services is being used and have an idea about those third party services. Or port number that could conflict with existing one.
This approach has never failed me, whether the codebase is spaghetti or a piece of cake. | shenoudafawzy |
1,881,180 | Beyond Money: The Impact of Enabling Widespread NFT Minting | The concept of Blockchain and NFT is rapidly revolutionizing the whole web landscape. Non-fungible... | 27,641 | 2024-06-08T08:16:49 | https://pragyasapkota.medium.com/nft-minting-6d1758b6af35 | blockchain, nft, ethereum, bitcoin | The concept of Blockchain and NFT is rapidly revolutionizing the whole web landscape. Non-fungible tokens (NFTs) are transforming the digital ownership aspect day by day and while most people grasp the idea of how these tokens work, some are still confused about the whole concept.
In today’s blog, you will learn some fundamentals of NFT minting that can get you started on the concept. We will also get into the process of creating and issuing non-fungible tokens (NFTs) more accessible and user-friendly for creators and users, i.e., enabling widespread NFT minting.
## What is NFT?
Non-fungible tokens (NFTs) are the cryptographic assets representing ownership and proof of authenticity of any unique digital item or piece of content. Unlike fungible cryptocurrencies like Bitcoin and Ethereum, NFTs are unique and in no way the tokens are interchangeable and equal in value. Each NFT has distinct properties and cannot be replicated or replaced. Each of the tokens holds metadata that includes details about the item it represents like its creator, creation date, and a unique identifier.
Over the past few years, NFTs have gained immense popularity and transcended the boundaries of traditional finance to permeate numerous economic sectors.
## How do NFTs work?
Blockchain is a decentralized digital ledger that stores all the transactions in a chain of computers. NFTs are built across a network of computers that helps ensure the authenticity, ownership, and provenance of each token. We can mostly see NFTs on Ethereum where smart contracts are used to facilitate transactions. Smart contracts are self-executing contracts with the terms of the agreement written into the code itself. These contracts automate the minting process, ownership transfer, and transaction records on the blockchain.
## What is NFT Minting?
NFT minting is a process of creating and issuing a new token. The process involves creating a unique digital asset and tokenizing it on a blockchain for transparency and authenticity of the item. In today’s date, most people prefer Ethereum for minting since it is widely accepted and also because it provides vigorous smart contracts. Other blockchain platforms like Tezos also support NFT minting.
Metadata containing the information about the digital item is attached to the token when the NFT is being minted. There are some token standards on Ethereum ERC-721 and ERC-1155 based on which the NFT minting can be done. The standard ERC-721 represents a single digital asset that is unique and indivisible and ERC-1155 represents multiple copies of an item or a collection of multiple items.
Minting an NFT also involves gas fees that can vary across network congestion and the complexity of the smart contract. These fees are only transaction fees used to compensate miners for validating and processing transactions on the network. While you are minting NFTs, you can have the option to embed royalty mechanisms into the smart contracts governing your NFTs so you can earn a percentage of the sale price each time the NFT is sold or transferred to a new owner in the secondary market. After completing the process, you can list your tokens for sale on various NFT marketplaces like OpenSea, Rarible, SuperRare, etc.
Finally, you should be aware of legal and copyright implications during the process if the asset holds any copyrighted materials or if there are disputes over ownership rights.
## Step-by-step guide to the minting process
Here is a detailed guide to the minting process. We will deploy our smart contract on the Ethereum Sepolia Testnet. To get started, you need to install the MetaMask browser extension and some test ETH from QuickNode Multi-Chain Faucet. You need to connect the wallet and if you have 0.001ETH on the Mainnet, you can use the EVN faucets. Let’s see the steps one by one.
- Open the terminal and start an IPFS repo
`ipfs init`
- Open a separate terminal and start an IPFS daemon
`ipfs daemon`
- Go back to the first terminal and add the image there with the .png file extension
`ipfs add image.png`
- Copy the has that starts with Qm and add `https://ipfs.io/ipfs`. It will look something like `https://ipfs.io/ipfs/QmPEVVUjuRi14T71sDttOzG4aodg`
- Create a JSON file with the name `nft.json` and save it in the same directory as the image in step 3
```
{
“name”: NFT Image”’
“description”: “This image shows the nature of NFT.”
“image”: “https://ipfs.io/ipfs/QmPEVVUJURI14T71sDttOzG4aodg”
}
```
- Add the JSON file
`ipfs add nft.json`
- Take the hash with Qm and prefix it with `https://ipfs.io/ipfs`. It will then look like `https://ipfs.io/ipfs/QmIFnTguOpT51Bpahepn7BYU` This URL will now be used to mint our NFT.
- We will use OpenZeppelin ERC-721 contract for NFT creation and we do not need to write the whole interface but we can import the library contract and use its functions. Open Ethereum Remix IDE to create a Solidity file named `Token.sol` and paste this code into the script:
```
//SPDX-License-Identifier: MIT
//pragma solidity ^0.8.20;
import “@openzeppelin/contracts@5.0.0/token/ERC721/ERC721.sol”;
import “@openzeppelin/contracts@5.0.0/token/ERC721/extensions/ERC721URIStorage.sol”;
import “@openzeppelin/contracts@5.0.0/token/ERC721/extensions/ERC712Burnable.sol”;
import “@openzeppelin/contracts@5.0.0/access/Ownable.sol”;
contract myToken is ERC721, ERC721URIStorage, ERC721Burnable, Ownable {
constructor(address initialOwner)
ERC721(“MyToken”, “MTK”)
Ownable(initialOwner)
{}
function safeMint(address to, uint256 tokenID, string memory uri)
public
onlyOwner
{
_safeMint(to, tokenID);
_setTokenURI(tokenID, uri);
}
// overrides required by Solidity
function tokenURI(uint256 tokenID)
public
view
override(ERC721, ERC721URIStorage)
returns (string memory)
{
Return super.tokenURI(tokenID);
}
function supportsInterface(bytes4 interfaceID)
public
view
override(ERC721, ERC721URIStorage)
returns (bool)
{
Return super.supportsInterface(intergaceID);
}
}
```
- Now, use the OpenZeppelin ERC-721 contract and import the library contract to use its functions.
- Get to Ethereum Remix IDE to create a new Solidity file with the new token name like — `NewToken.sol`
- Prepare your Solidity script
```
//SPDX-License-Identifier: MIT
pragma solidity ^0.8.20;
import “@openzeppelin/contracts@5.0.0/token/ERC721/ERC721.sol”;
import “@openzeppelin/contracts@5.0.0/token/ERC721/extensions/ERC721URIStorage.sol”;
import “@openzeppelin/contracts@5.0.0/token/ERC721/extensions/ERC721Burnble.sol”;
import “@openzeppelin/contracts@5.0.0/access/ownable.sol”;
contract MyToken is ERC721, ERC721URIStorage, ERC721Burnable, Ownable {
constructor(address initialOwner)
ERC721(“NewToken”,”MTK”)
Ownable(initialOwner)
{}
Function safeMint(address to, uint256 tokenId, string memory uri)
Public
onlyOwner
{
_safeMint(to, tokenID);
_setToeknURI(tokenID, uri);
}
// overrides required by Solidity
function tokenURI(uint256 tokenID)
public
view
override(ERC721, ERC721URIStorage)
returns (string memory)
{
Return super.tokenURI(tokenID);
}
function supportsInterface(bytes4 interfaceId)
public
view
override(ERC721, ERC721URIStorage)
returns (bool)
{
return super.supportsInterface(interfaceID);
}
}
```
- This code will now create a custom ERC721 token contract named NewToken so we as the contract owners can mint new tokens with metadata URIs and the support for the necessary interfaces defined by the ERC721 standard.
- You now need to customize the contract with your details for a more personalized experience. You can update the token name with the line
`ERC721(“NewToken”,”MTK”)`
- After the completion, you can compile the smart contract and deploy it with the Injected Provider before pasting your wallet address into the box just near the Deploy button to define the `initialOwner` inside the constructor function.
- You need to click Deploy on Remix.IDE
- Select the appropriate contract under the contract tab to avoid an error message before deployment.
- Confirm the transaction in the MetaMask wallet and then go to the Deployed Contracts section in the IDE and see the functions/methods.
- Check the safeMint function and add your wallet address in the **_to** field.
- Under the safeMint function, enter a big number value in the **_tokenId** field and it is usually better to use “1” as it represents the first token.
- Input the URI of the previously prepared JSON file in the **_uri** field.
- Click on Transact and confirm the transaction from MetaMask.
- You have your NFT on the Sepolia chain. Check the metadata with tokenId.
## Enabling Widespread NFT Minting
There are many aspects of the concept where you can try to create tokens that are more accessible and user-friendly for the creators and users. Let’s see them one by one in different parts.
### 1. Enabling Widespread NFT Minting to simplify the process
#### a. User-friendly Interfaces
With the creation of NFT minting platforms that are both intuitive and easy to navigate, even users with no prior blockchain experience can have no trouble using them. Some of the interface’s features include drag-and-drop interfaces, clear instructions, and pre-built templates.
#### b. Wallet Integration
Integrating crypto wallets directly into the minting platform can eliminate the need for users to manage private keys or transfer funds between wallets.
#### c. Fiat on-ramps
Next, allowing users to pay for minting fees with traditional currency or fiat using credit cards or debit cards can help you remove the barrier for those who are not comfortable using cryptocurrency.
### 2. Enabling Widespread NFT Minting to reduce costs
#### a. Layer 2 solutions
We can use Layer 2 scaling solutions on top of blockchains so the gas fees associated with minting NFTs can be reduced. With these layer 2 solutions, we can handle transactions off the main blockchain, making them faster and cheaper.
#### b. Alternative blockchains
Moreover, we can explore all alternative blockchains that were designed for NFTs with lower transaction fees than Ethereum like Tezos and Solana.
### 3. Enabling Widespread NFT Minting to Encourage Creators
#### a. Royalties
You can also build royalty structures into the minting process so the creators can earn a percentage of every future sale of their NFT. Statistically, it has been shown that this incentivizes creators to participate in the NFT ecosystem.
#### b. Community Building
Integrating features that creators can use to connect their audience and build communities around their NFTs can go beyond for the long term. This means we need to have forums, chat rooms, and exclusive content for NFT holders.
### 4. Enabling Widespread NFT Minting for Education and Awareness
#### a. Educational Resources
Finally, we can hold clear and concise educational resources that will explain the definition and potential use cases of NFT alongside the minting process. You can upload regular blogs, tutorials, and video guides within the resources.
#### b. Highlighting Success Stories
You can also showcase your successful NFT projects and creators can inspire others to participate and demonstrate the potential benefits of NFTs.
## Potential Drawbacks of Enabling Widespread NFT Minting
There are some potential drawbacks to the widespread adoption.
- #### Environment Impact
The energy consumption of some blockchains used in NFTs can be significant and this raises concerns for the environmental impact. We can, however, look for solutions to address this concern.
- #### Market Volatility
Since the NFT market is still relatively new and volatile, investors need to be aware of the risks involved. This way the decision will be informed and educated.
## Conclusion
The bottom line is that widespread NFT minting brings immense potential to empower creators, open new avenues for ownership, and fuel innovation across various industries. As we move forward, prioritizing education, fostering collaboration, and developing responsible practices, can be the key to ensuring that widespread NFT minting fosters a thriving digital future.
**_I hope this article was helpful to you._**
**_Please don’t forget to follow me!!!_**
**_Any kind of feedback or comment is welcome!!!_**
**_Thank you for your time and support!!!!_**
**_Keep Reading!! Keep Learning!!!_** | pragyasapkota |
1,881,178 | +919805254521 | A post by Kamal Kumar | 0 | 2024-06-08T08:12:23 | https://dev.to/kamal_kumar_315134f4a7b33/919805254521-4567 | kamal_kumar_315134f4a7b33 | ||
1,881,177 | +919805254521 | A post by Kamal Kumar | 0 | 2024-06-08T08:12:21 | https://dev.to/kamal_kumar_315134f4a7b33/919805254521-295 | kamal_kumar_315134f4a7b33 | ||
1,881,176 | Sustainability in Waste Management: Partnering with Enlightening Pallet Industry Co. | and make the world a cleaner, safer place Nonferrous Steels in Aquatic Design: Rust Protection as... | 0 | 2024-06-08T08:06:58 | https://dev.to/amanda_andersongh_189c006/sustainability-in-waste-management-partnering-with-enlightening-pallet-industry-co-4g25 | design | and make the world a cleaner, safer place
Nonferrous Steels in Aquatic Design: Rust Protection as well as Stamina
Nonferrous steels participate in an important function in sea design
They are actually important in the production of watercrafts, ships, as well as other sea frameworks
Nonferrous steels consist of steels such as copper, aluminum, zinc, as well as magnesium
These steels have actually the residential or commercial homes of rust resistance as well as strength, creating all of them perfect for utilize in sea frameworks
This short post will certainly talk about the benefits, innovation, security, utilize, as well as request of these steels in sea design
Benefits
Among the significant benefits of nonferrous metals is actually their higher deterioration protection
Sea structures are actually constantly subjected towards wetness as well as deep sea, resulting in rust
Nonferrous steels such as copper, light weight aluminum, as well as magnesium have actually excellent protection towards rust
They don't rust quickly, as well as they keep their Plastic Pallet Box initial properties also when subjected towards severe ecological problems
Another benefit of nonferrous metals is actually their higher strength-to-weight proportion
They are actually light-weight as well as have actually exceptional stamina, creating all of them perfect for utilize in sea design
Their light-weight additionally decreases the overall value of the aquatic framework, resulting in much a lot better gas efficiency
Development
Developments in the manufacturing of nonferrous steels have actually caused the growth of brand-brand new alloys that are actually much more fit for aquatic design
For instance, light weight aluminum alloys have actually been actually designed along with high stamina as well as outstanding rust protection
These alloys are actually being used in the building of offshore oil systems as well as submarines
Security
Nonferrous metals have actually gone through comprehensive screening as well as are actually right now thought about risk-free towards utilize in aquatic design
The steels are actually resistant towards discharge as well as don't launch harmful gases when subjected towards heats
This creates all of them perfect for make use of in aquatic frameworks as they position very little threat towards individual lifestyle also in case of a mishap
Utilize
Nonferrous steels are actually made use of in the production of aquatic structures like watercraft hulls, deliver decks, as well as props
These steels are actually likewise utilized in aquatic devices like warm exchangers, cooling down bodies, as well as pumps
They have actually confirmed to become tough as well as affordable services for aquatic designers
Ways to Utilize
Nonferrous steels are actually versatile as well as could be utilized in a selection of methods
For example, copper alloys could be made use of in shipbuilding for its own outstanding resistance towards rust as well as high thermal conductivity
Light weight aluminum alloys appropriate for utilize in Plastic Waste Binlight-weight aquatic structures
Zinc alloys are actually perfect for anode requests to offer cathodic security of steel surface areas
Solution
Nonferrous steels are actually recognized for their resilience as well as long life span
They need very little maintenance, as well as their higher rust protection makes certain that they don't deteriorate rapidly
Aquatic frameworks created coming from nonferrous steels are actually developed towards final for many years without the require for substitute
High top premium
The high top premium of nonferrous steels made use of in aquatic design is actually of utmost usefulness
The steels has to comply with particular demands, like stamina, durability, as well as protection towards rust
For that reason, it is actually necessary to acquisition nonferrous steels coming from reliable providers that offer a high quality ensure
Request
Nonferrous steels have actually various requests in sea design
They are actually utilized in the building of offshore oil systems, subsea pipes, as well as Boarding Box aquatic devices
They are actually additionally used in private luxury yacht structure, shipbuilding, as well as commercial angling
Their higher rust protection, stamina, as well as resilience create all of them a suitable service for aquatic designers | amanda_andersongh_189c006 |
1,880,561 | What is Execution Context In JavaScript? | Understand the Execution Context In JavaScript in an easy way. | 0 | 2024-06-08T08:02:38 | https://dev.to/bhargablinx/what-is-execution-context-in-javascript-4k5g | javascript, jsengine, developers, fundamentals | ---
title: What is Execution Context In JavaScript?
published: true
description: Understand the Execution Context In JavaScript in an easy way.
tags: #javascript #jsengine #developers #fundamentals
# cover_image: https://dev-to-uploads.s3.amazonaws.com/uploads/articles/bt47ijfx4wtrtc8wggfc.png
# Use a ratio of 100:42 for best results.
# published_at: 2024-06-07 15:37 +0000
---
## JavaScript Execution Context - Internal Working of JS
### In Simple Terms
In simple terms when you run a JavaScript program, the whole program runs inside a container or box, and remember this:
> "Everything in JavaScript happens inside an Execution Content"
Look at the diagram again! Yes, execution context in javascript has two components: memory; and code component.
Let's understand both components and then we can at last we will combine all these pieces and we will be able to understand JavaScript Execution Context.
**Memory Component**
This is the section where all the variables and functions we declare in our program are stored. These variables are stored as key-value pairs i.e., `key: value`. This memory component is also known as the variable environment
**Code Component**
This is the section where the codes are executed line by line (one line at a time). There is a fancy name for it **Thread of Execution**
### Phases of the JavaScript Execution Context
When you execute a `JS` code, it goes through 2 phases in order:
> These are not official terminology, I am using them to make you understand Execution Context In JavaScript.
1. **Scanning Phase**: In this phase, the `JS` engine creates the container that we discussed earlier (Execution Context). It allocates memory for the variables and functions in the memory component. The variables are assigned the value of `undefined` and the functions are directly copied from the code to the memory component.
2. **Execution phase**: In this phase, the magic happens and the `JS` engine executes the code one line at a time. You remember in the scanning phase it assigns the value of `undefined` to the variables, and in the execution phase the `undefined` is replaced with the value that is declared in our code.
Let's understand with the help of a simple program:
```js
let a = 10;
function addOne(num) {
return num + 1;
}
```
In the scanning phase:
In the execution phase:
That `undefined` is replaced with the actual value, which we assign in our code `10`.
This as a whole is known as the Execution Context In JavaScript.
I hope you understand it clearly, but if not then below is a real-life example that will help you understand it even more!
### JavaScript Execution Context With Real Life Example
####Imagine You're at a Restaurant
Think of `JS` as a restaurant, where different chefs (functions) are preparing meals (executing code).
The **Execution Context** is like the kitchen workspace that each chef uses to prepare their meal.
When the restaurant opens, the head chef (JavaScript engine) sets up the Global Execution Context. This is the main kitchen workspace where everything starts.
- Ingredients (variables and functions) that are available to all chefs.
- Utensils (methods and objects) that everyone can use.
- Recipes (global functions) that any chef can follow.
```js
function makeSalad(ingredient) {
var dressing = "Olive Oil";
console.log("Using ingredient: " + ingredient + " with " + dressing);
}
makeSalad("Lettuce");
```
When the function makeSalad("Lettuce") is called, the following happens:
- Creation
- The workspace (Execution Context) is set up.
- Local ingredients (variables and functions) are declared.
- `ingredient` is set to "Lettuce".
- `dressing` is declared but not yet defined.
- Execution Phase:
- Local ingredients are assigned values.
- The function's code runs using these local items.
### Conclusion
- Execution Context (EC) is created by `js` engine whenever a code is run
- EC contains two phases: creation, and execution phase
- When a variable is declared or a function is created, and completely new EC is created inside the global EC.
- The EC is the chef's workspace.
- The Global Execution Context is the main kitchen setup.
- Each Function Execution Context is a new chef's workspace, created and stacked as needed. | bhargablinx |
1,881,175 | new | A post by Zoya Rizwan | 0 | 2024-06-08T07:59:41 | https://dev.to/zoya_rizwan_dea4451e7d986/new-36ai | <script async src="https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js?client=ca-pub-8484030525034190"
crossorigin="anonymous"></script> | zoya_rizwan_dea4451e7d986 | |
1,881,174 | Ensuring Your New Car is Perfect with Comprehensive Pre-Delivery Inspection Services | When you're about to take delivery of a new car, there's a lot of excitement in the air. However,... | 0 | 2024-06-08T07:57:27 | https://dev.to/pdiboss/ensuring-your-new-car-is-perfect-with-comprehensive-pre-delivery-inspection-services-4o63 | pdi, pdiboss, automobile, predeliveryinspection |
When you're about to take delivery of a new car, there's a lot of excitement in the air. However, the last thing you want is to discover hidden defects, poor-quality paintwork, or software glitches after you've driven off the lot. This is where PDI BOSS, a leading pre-delivery inspection (PDI) service, steps in to ensure that your new vehicle is in impeccable condition before you take ownership. Our comprehensive car pre-delivery inspection services offer peace of mind and a seamless experience for new car buyers.
**What is a Pre-Delivery Inspection (PDI)?**
A pre-delivery inspection, or PDI, is a thorough examination of a new vehicle before it's handed over to the customer. This critical step in the car delivery process ensures that the vehicle meets the manufacturer's specifications, is free of defects, and is ready for use. PDI BOSS specializes in providing these inspections, focusing on a wide range of checks, from battery and tyre health to engine diagnosis and paint quality.
**The Importance of PDI for New Cars**
A PDI is essential to ensuring that your new car is safe, functional, and up to standard. It involves a comprehensive checklist to verify that all aspects of the vehicle are in optimal condition. Here's why a PDI is crucial:
• **Quality Assurance:** A PDI checks for any defects or issues that might have occurred during manufacturing or transportation, ensuring that your car is flawless.
• **Safety:** The inspection includes crucial safety checks, like brakes, airbags, and seatbelts, to ensure your new car is safe to drive.
• **Functionality:** A PDI ensures that all features and systems, such as electronics and software, are working correctly.
• **Customer Satisfaction:** Knowing your car has passed a rigorous inspection gives you confidence and satisfaction in your purchase.
**What Does PDI BOSS Include in Its Pre-Delivery Inspection?**
PDI BOSS provides a comprehensive PDI service that covers every aspect of your new car to ensure it's in top condition. Here's what you can expect from our PDI process:
**1. Battery and Tyre Health**
PDI BOSS checks the battery to ensure it's fully charged and functioning correctly. We also inspect the tyres for proper inflation and tread wear, ensuring they're ready for the road.
**2. Engine Health Diagnosis**
Our team performs a detailed engine health diagnosis to identify any issues that might affect performance. This includes scanning for mechanical defects and ensuring the engine runs smoothly.
**3. Software Malfunction Diagnosis**
In today's vehicles, software plays a significant role in the car's operation. PDI BOSS conducts a thorough scan to detect any software malfunctions, ensuring that all systems are functioning as they should.
**4. Paint Diagnosis**
The vehicle's paint quality is also checked for imperfections, scratches, or inconsistencies. We ensure that the car's exterior meets the highest standards, giving you a flawless finish.
**5. Comprehensive Inspection Checklist**
PDI BOSS uses a detailed inspection checklist to cover every aspect of the car. This includes checking lights, wipers, doors, windows, and other key components. Our PDI experts leave no stone unturned to guarantee your satisfaction.
**The PDI BOSS Difference**
At PDI BOSS, we understand that buying a new car is a significant investment. Our goal is to make sure your new vehicle is perfect before you take delivery. Here's what sets us apart:
**• Expertise and Experience:** Our team consists of highly skilled PDI experts with years of experience in the automotive industry. We know what to look for and how to address any issues.
**• Attention to Detail:** We pride ourselves on our meticulous attention to detail. Our comprehensive PDI checklist ensures that every aspect of your car is thoroughly inspected.
**• Customer-Focused Approach:** We prioritize customer satisfaction and work closely with you to ensure your new car meets your expectations. We will take the time to explain our findings and answer any questions you may have.
**• Fast and Efficient Service:** We understand that you want to get on the road as soon as possible. PDI BOSS provides fast and efficient pre-delivery inspection services without compromising quality.
**Schedule Your Pre-Delivery Inspection with PDI BOSS**
If you're about to take delivery of a new car, don't leave anything to chance. Schedule a pre-delivery inspection with PDI BOSS to ensure your vehicle is in perfect condition. Our comprehensive inspection services will give you the peace of mind you need before driving away in your new car.
Contact us today to learn more about our PDI services and how we can help you get the most out of your new car. With PDI BOSS, you can rest assured that your vehicle has been thoroughly checked and is ready for the road ahead.
Check out our Website on **[PdiBoss](https://www.pdiboss.in/)** | pdiboss |
1,881,172 | Metal Raw Materials Quality Control: Standards and Regulations | H74f969b6c6594ac0ad32c327b8f85ef8n.png We will explore Metal Raw Materials Quality Control Are in... | 0 | 2024-06-08T07:56:00 | https://dev.to/amanda_andersongh_189c006/metal-raw-materials-quality-control-standards-and-regulations-55d2 | design | H74f969b6c6594ac0ad32c327b8f85ef8n.png
We will explore Metal Raw Materials Quality Control
Are in truth their aware just how Metal Raw products strategies such as for instance coins, cans, cables, plus structures originated. They have been created from trash metal ores, scrap metals, plus alloys. Their their aware which their training which can be famous founded fact of device meet that might be ended up being methods that are normal regulations to be sure their safety plus effectiveness due to process that is manufacturing we'll explore the essential maxims of metal problems control like being try normal like their professionals, innovation, safeguards, use, solution, quality, plus application.
Top options that come with Metal Raw Materials Quality Control
Metal Raw quality control really actually lets you confirm the recycleables present in steel and monel alloy production upwards being complete of quality, without the defects, impurities, because chemical compounds being harmful. Given that are good means that is genuine can easily be genuine it could likely:
: decrease production costs plus invest : top-quality activities end that will be try normal less declined nickel metal services and products plus manufacturing that's been repaid disposal investing.
: Enhance product effectiveness plus durability : further trash which can be effectively occur that could invest to, especially resistant, plus metal which will be longer-lasting which will meet customer demands plus specifications.
: many protection that are of good use real fitness : dangerous because toxic recycleables could make issues to workers plus users unless you properly handled, that could produce accidents, injuries, plus circumstances.
Innovation in Metal Raw Materials Quality Control
Within the ages being numerous could be last is most is few most there clearly was plainly progress in therapy plus technology found in Metal Raw ways control that may be are normal. Some companies use that will be is producing of is ongoing that are tantalum item being artificial, plus recommendations review observe plus optimize the initial of recycleables in real-time for instance. Further innovations comprise of improved evaluation item plus sensors, most sampling plus accurate that has been dependable, plus conversation that would be better plus collaboration amidst stakeholders with their show which was give.
Protection in Metal Raw Materials Quality Control
Protection is generally the aspect which is a intent behind Metal Raw quality control. It involves determining plus threats which might be mitigating that will be test which includes being being towards the administration, spot, transportation, plus disposal of trash. Additionally workers which are incorporate is producing finished up being yes the environmental surroundings that are environmental upwards which can be ecological safer from harm. To protection that are own agencies which are regulatory (Occupational Safety plus Health Administration) plus EPA (Environmental Protection Agency) produced methods plus guidelines for the Metal Raw to know.
Usage of Metal Raw Materials Quality Control
Metal Raw being control which can be normal be utilized in plenty phases in regards to the metal production procedure, like:
: sourcing plus content which could possibly become choosing could be normal ensuring the apparatus meet the desired quality need plus demands.
- Testing and sampling - to ensure of for fundamentally any impurities, defects, because harmful chemical substances which can be chemical was chemical might influence this process that has become quality satisfaction which are being were final.
: Processing and refining : eliminating any gear which could be undesired elements effectively to ultimately achieve the construction being desired faculties along with metal.
: region plus transportation : ensuring those products being normal conserved plus transported correctly plus effectively minus contamination because damage.
: Disposal plus recycling : ensuring the invest because by-products utilizing the metal production that are normal was properly discarded plus handled, or recycled to attenuate minmise plus invest effect being environmental.
How to Use Metal Raw Materials Quality Control
Metal Raw quality control systematic plus approach that are arranged involves:
: developing quality means plus specifications : determining the specified niobium metal quality faculties plus tolerances associated with trash.
: developing quality control remedies plus protocols : determining the strategy plus regularity of evaluation, sampling, plus evaluation to guarantee the recycleables meet up with the criteria plus requirements.
: Monitoring plus satisfaction which was gathering which includes become examining which is often determining plus feedback to gauge the effectiveness plus effectiveness connected with quality control measures plus recognize areas for improvement.
: constant enhancement - implementing corrective plus preventive actions, learning from enjoy, plus adjusting to alterations available in the market enterprise plus regulatory environment to make sure the traditional of recycleables test constantly boosting. | amanda_andersongh_189c006 |
1,881,171 | Using Ecto (without Db) for validating Phoenix form | I had a sharing session for Elixir community in Saigon about how to using Ecto without db for... | 0 | 2024-06-08T07:51:53 | https://dev.to/manhvanvu/using-ecto-without-db-for-validating-phoenix-form-4chp | ecto, liveview, phoenix | I had a sharing session for Elixir community in Saigon about how to using Ecto without db for validating Phoenix form. Now I add this for people who just start to learn Elixir can see what can do with Ecto & Phoenix form.
For save time I just write an example for HTML form in LiveView.
As we known Ecto is very flexible library for Elixir application and people usually use Ecto like:
Actually, we can use only 2 modules are enough for casting & validating form: Ecto Changeset & Schema (you can use only Changeset module but with Schema much more convenience).
For example:
I declare Schema for Candidate module:
```Elixir
defmodule DemoEctoForm.Candidate do
use Ecto.Schema
import Ecto.Changeset
embedded_schema do
field :name, :string
field :bio, :string
end
def changeset(candidate, attrs \\ %{}) do
candidate
|> cast(attrs, [:name, :bio])
|> validate_required([:name])
|> update_change(:name, &String.trim/1)
|> validate_format(:name, ~r/^[a-zA-Z\s]+$/)
|> validate_format(:name, ~r/^\w+(?:\s+\w+){1,5}$/)
|> validate_format(:bio, ~r/^\w+(?:\s+\w+){2,25}$/)
end
end
```
A embedded schema with only 2 fields & a changeset/2 function for casting & validating values from submitted form.
For validating use can see one required field (`:name`) and I add some regex for checking valid fields.
And at LiveView I defined a template:
```Elixir
~H"""
<div class="bg-red-600 text-white rounded-md">
<br>
<.form
id="candidate-form"
:let={f} for={@changeset}
phx-change="validate"
phx-submit="submit"
class="flex flex-col max-w-md mx-auto mt-8"
>
<h1 class="text-4xl font-bold text-center">New Candidate!</h1>
<br>
<.input field={f[:name]} placeholder="Nguyen Van Great" id="name" label="Full Name" />
<br>
<.input field={f[:bio]} placeholder="example: Elixir, Phoenix, Ecto, Hòzô" id="bio" label="Bio"/>
<br>
<.button type="submit">Add Candidate</.button>
<br><br>
</.form>
</div>
"""
```
I passed default changeset from mount event then use directly in form. See `.form` and `.input`
My mount event:
```Elixir
def mount(_params, _session, socket) do
changeset = Candidate.changeset(%Candidate{})
{:ok, assign(socket, changeset: changeset)}
end
```
And add `phx-submit` event to handle submitted form from user:
```Elixir
def handle_event("submit", %{"candidate" => candidate_params}, socket) do
changeset =
%Candidate{}
|> Candidate.changeset(candidate_params)
if changeset.valid? do
data = apply_action!(changeset, :update)
IO.puts "Candidate data: #{inspect(data, [pretty: true, struct: false])}"
Ets.add_candidate(data)
socket =
socket
|> put_flash(:info, "You added a candidate!")
|> redirect(to: ~p"/")
{:noreply, socket}
else
changeset =
%Candidate{}
|> Candidate.changeset(candidate_params)
{:noreply, assign(socket, changeset: changeset)}
end
end
```
I cast data from submitted form to changeset then check if changeset is valid or not. If changeset is invalid I pass again socket for form show errors in browser then user can update data.
Now, I have a completed form!
Actually, I have added an other tips for user can continue fill to the form in another device/browser or in case if LiveView is crashed by save state of form to `ets` table in my project.
Check [my repo](https://github.com/ohhi-vn/sharing_ecto_form) for more. | manhvanvu |
1,881,170 | History of HTML | History of HTML HTML or HyperText Markup Language is the core of the World Wide Web. It... | 24,195 | 2024-06-08T07:50:55 | https://dev.to/code-with-ali/history-of-html-6lm | html, webdev, article | # History of HTML
HTML or HyperText Markup Language is the core of the World Wide Web. It manages web content and allows you to create visually and functionally rich web pages. Understanding its history, development, and key components provides insight into how the Internet has become an integral part of modern life.
## Origins and Inception
HTML was created in 1991 by British scientist Tim Berners-Lee from CERN (European Organization for Nuclear Research). Berners-Lee envisioned a global information system that could link documents in different systems. This type was added to the World Wide Web, and HTML became the language for formatting and displaying information on web pages.
### Key Milestones in HTML Development
1. **HTML 1.0 (1991-1993)**: The first version of HTML included basic elements such as headers, paragraphs, lists, links, and images. It's basic, but provides important functionality for document linking and basic content formatting.
2. **HTML 2.0 (1995)**: This version was an attempt to standardize HTML and included additional features such as the ability to insert forms, tables, and multimedia.
3. **HTML 3.2 (1997)**: Developed by the World Wide Web Consortium (W3C), this version improves complex tables, programs, and form controls. It is an important step for better web content.
4. **HTML 4.0 (1997)**: This release introduced the separation of content and presentation by supporting style sheets (CSS). There are also additional tools for scripting, safer mode, and accessibility features.
5. **HTML5 (2014)**: HTML5 revolutionized web development by adding support for multimedia, graphics, and more interactive elements without relying on plugins. Key features include "<canvas>", "<audio>", "<video>" and new form controls. It also introduces the concept of semantic elements such as "<article>", "<section>" and "<nav>" to improve document structure and accessibility.
## Basic components and tags in HTML
HTML documents are structured using different elements, each defined by tags. Here are some key points and objectives:
1. **Basic Structural Notes**:
- `<! DOCTYPE html>`: Declare the document type and the HTML type.
- `<html>`: The root element that contains the entire document.
- "<head>": contains metadata, scripts and styles.
- "<title>": Indicates the title of the document displayed in the browser application.
- "<body>": Contains the body of the HTML document.
2. **Content Organization Notes**:
- "<h1> to <h6>": title, "<h1>" is the top level and "<h6>" is the bottom.
- `<p>`: Paragraph for text content.
- "<ul>", "<ol>" and "<li>": Unsorted list and sorted list elements.
- `<a>`: Links for navigation between documents or sections.
- "<div>" and "<span>": Common containers for grouping content and applying styles.
3. **Media notes and applications**:
- `<img>`: Image place.
- "<audio>" and "<video>": Enter audio and video content.
- "<iframe>": Places another HTML page inside the current page.
4. ** Form Notes **:
- "<form>": Defines a form for user input.
- "<input>", "<textarea>", "button", "<select>" and "<option>": Various display controls to collect user input.
5. **Semantic Notes**:
- "<header>", "<footer>": Defines the header and footer of the section
or page.
- `<nav>`: Show navigation links.
- "<article>", "<section>", "<side>", "<main>": Define several content sections, improve document structure and accessibility.
## HTML and modern web development
HTML5 lays the foundation for modern web applications by improving rich media, interactive content, and performance. With continuous improvements and standards set by W3C and WHATWG (Web Hypertext Application Technology Working Group), HTML continues to evolve and meet the needs of web developers and users.
Note : If you Need any Kind of help than DM me on Linkedin [Syed Muhammad Ali Raza](https://www.linkedin.com/in/syed-muhammad-ali-raza/) | syedmuhammadaliraza |
1,881,169 | Alloy Wheels: Enhancing Your Car's Appearance and Value | Hc5f12432d7ab4c2a9dcc3f90507b19daA.jpg Alloy Wheels: Make Your Car Look Cooler and Worth More You... | 0 | 2024-06-08T07:50:11 | https://dev.to/ndjje_dijruu_91a0196341b4/alloy-wheels-enhancing-your-cars-appearance-and-value-4lco | Hc5f12432d7ab4c2a9dcc3f90507b19daA.jpg
Alloy Wheels: Make Your Car Look Cooler and Worth More
You should consider installing alloy wheels if you want your car to look stylish. These wheels are not only attractive but also practical and safe. We will explore the benefits of alloy wheels, how they work, and how to maintain them.
Advantages of Alloy Wheels
Alloy wheels offer many benefits to car owners, and one of them their aesthetic appeal. They are available in various designs, colors, and finishes, making it easy to find the set that's perfect for your vehicle. You can choose from a range wide of will enhance your car's look, such as the classic five-spoke, mesh styles, or the sporty multi-spokes. Alloy wheels are come in different sizes as well, which means you can select the fit right your car.
Another benefit of alloy wheels are their strength. They are made of lightweight materials such as aluminum, magnesium, or a mix of both metals. This construction makes them more durable and resistant to bends and dents. Unlike steel wheels, they will not rust or corrode, which another good reason they popular with car enthusiasts.
Innovation and Safety
Aluminum alloy wheels are quite innovative and have a range of advantages. For a start, they're lighter than steel wheels, which makes them more fuel-efficient. You'll probably notice a improvement slight your car's fuel economy if you switch from steel to alloy wheels. Also, their lighter weight means your car shall handle better and have improved performance. They less likely to warp under heavy loads or during hard braking.
Safety is also another plus point for alloy wheels.
They offer better heat dissipation, which helps keep your brakes cool and brake fade prevent. Brake fade occurs when brakes overheat and lose their stopping power. This can be dangerous in situations where you need to stop quickly. Aluminum alloy wheels also help reduce weight unsprung which translates to better road handling and grip. They are less likely to break free from the surface of the road, which ensures your car safe at all times.
How to Use and Maintain Your Alloy Wheels
Alloy wheels require the care that's same any other wheel type, but it is essential to use care when cleaning them. Avoid cleaning abrasive or pads can scratch the surface of the wheels. Always use a wheel non-acidic to avoid corrosion, and rinse them thoroughly after cleaning.
You should also take care to use the right tires if you choose to install alloy wheels. The tires wrong affect the performance of your new wheels, and it will be a waste of money. Always consult a tire professional before choosing tires new. To keep your Wheels new, you should wax them frequently to prevent corrosion and protect their finish.
Service and Quality
When selecting alloy wheels, it's crucial to choose quality wheels will last for years. The quality alloy wheels are highest undergo rigorous testing to ensure they meet international standards. These standards include heat treatment, hardness testing, and other tests to ensure they can withstand the stresses of everyday use. Be sure to check the quality of the wheels you considering and their warranties before purchasing.
Application of Alloy Wheels
Alloy wheels have applications in various markets, consisting of air travel and racing. They are an option that is popular in these markets because they are light-weight, durable, and solid. In the industry automobile they have gained appeal because of their visual appeal and efficiency benefits.
Source: https://www.khrwheels.com/application/alloy-wheels | ndjje_dijruu_91a0196341b4 | |
1,881,168 | YMIN capacitors: high capacity, long lifespan, low ESR, and wide temperature stability ensure reliable compressor performance. | YMIN capacitors: high capacity, long lifespan, low ESR, and wide temperature stability ensure... | 0 | 2024-06-08T07:49:55 | https://dev.to/yolosaki/ymin-capacitors-high-capacity-long-lifespan-low-esr-and-wide-temperature-stability-ensure-reliable-compressor-performance-neh | programming, design | YMIN capacitors: high capacity, long lifespan, low ESR, and wide temperature stability ensure reliable compressor performance.
https://www.ymin.cn/news/ymin-capacitors-ensuring-stable-operation-of-electric-air-conditioning-compressors/
| yolosaki |
1,881,167 | Next.js in production? | I played around with Next.js, I am not a framework loyalist (although I prefer Laravel or Django), so... | 0 | 2024-06-08T07:47:43 | https://dev.to/kwnaidoo/nextjs-in-production-2im3 | nextjs, javascript, typescript, discuss | I played around with Next.js, I am not a framework loyalist (although I prefer Laravel or Django), so I will build with whatever is in front of me.
Next.js has some interesting features; I like React, and having an API next to the React UI is very appealing.
Problem! Next.js seems to be heavily tied to Vercel, I am not sure I like having such tight integration with one particular company. This seems sketchy long-term.
Nonetheless, Next.js is just a node project, right? So technically it should just work in Docker. I spun up a docker stack and it seems to work fine for a simple project ( I built a basic image cropping & resizing tool).
Have you deployed a real project in production (With Docker or bare metal) with large projects? and what has been your experience? | kwnaidoo |
1,881,166 | Nonferrous Metals in Automotive: Lightweight and Durable Solutions | H78b6227eac6d4ddb88e650e721e1e9438.png Marketing Article: Nonferrous Metals in Automotive:... | 0 | 2024-06-08T07:46:59 | https://dev.to/amanda_andersongh_189c006/nonferrous-metals-in-automotive-lightweight-and-durable-solutions-32hb | design | H78b6227eac6d4ddb88e650e721e1e9438.png
Marketing Article: Nonferrous Metals in Automotive: Lightweight and Durable Solutions
Introduction
Are you looking for a motor car more fuel-efficient, easier to handle, and safer to drive? Then you should consider cars that are made with nonferrous metals if yes. These metals are durable and lightweight, making them perfect for automotive applications. We will discuss the advantages of nonferrous metals, innovation in car manufacturing, dedicated safety features, their uses and how to use them, service quality as well as their applications.
Advantages of Nonferrous Metals
Nonferrous metals have several advantages over ferrous metals, which makes them more popular for automotive applications. First, nonferrous metals are lightweight, which means cars made with nonferrous metals more fuel-efficient. Second, they have better corrosion resistance, which means cars made with nonferrous bismuth metal last longer. Third, they are better at dissipating heat, which means cars are made with nonferrous metals run cooler. Lastly, nonferrous metals are tend to be more ductile than ferrous metals, which means they can be shaped into more geometries complex.
Innovation in Car Manufacturing
Innovation in car manufacturing has led to the use of nonferrous metals such as aluminum, magnesium and titanium, which is lighter but still have the strength same ferrous metals such as steel. For example, the 2021 Ford F-150 has an aluminum body 700 pounds lighter than the model previous making it more fuel-efficient and easier to handle. Similarly, the 2021 Acura NSX has a body that's made of aluminum and polymer carbon-fiber-reinforced which makes it lighter and more rigid than previous models.
Dedicated Safety Features
Cars made with nonferrous metals have dedicated safety features to ensure protection maximum the event of a crash. These features include improved airbags, energy-absorbing structures and zones crumple. Also, nonferrous metals used in automotive parts have excellent damping characteristics, which helps in reducing the vibrations transmitted to the passengers.
Uses and How to Use Nonferrous Metals
Nonferrous metals are commonly used in automotive applications, including engine components such as pistons, connecting rods, and cylinder heads, as well as wheels, body panels and suspension components. To use nickel alloy metals that are nonferrous in car manufacturing, manufacturers need to consider several things, including the ease of fabrication, joining methods, as well as the effect on structural integrity.
Service Quality
The service quality of cars are made with nonferrous metals excellent due to their lightweight and nature that's durable. Nonferrous metals less prone to corrosion, wear and tear, which reduces the frequency of repairs and replacements. As a result total cars made with nonferrous metals last longer, making them more valuable for resale.
Applications
Nonferrous metals have various applications in the industry automotive the manufacturing of cars. For instance, tantalum aluminum are used to make parts for aircraft, marine vessels, and trains. Titanium is used in aerospace applications, such as the construction of engines and airframes. Magnesium is used in the construction of portable devices electronic as laptops and smartphones. | amanda_andersongh_189c006 |
1,881,165 | Exploring the Advantages of Forged Wheels | Hc5f12432d7ab4c2a9dcc3f90507b19daA.jpg Exploring the Advantages of Forged Wheels: Why They're a great... | 0 | 2024-06-08T07:46:04 | https://dev.to/ndjje_dijruu_91a0196341b4/exploring-the-advantages-of-forged-wheels-2cm0 | Hc5f12432d7ab4c2a9dcc3f90507b19daA.jpg
Exploring the Advantages of Forged Wheels: Why They're a great Choice
Are you looking for a way that's real to improve your car or truck's performance? One option to consider switching to wheels forged. These wheels are made using a process unique offers advantages several cast traditional. We'll explore why forged wheels a choice that's great drivers who want the performance best and quality possible.
Advantages of Forged Wheels
There are several reasons why drivers and auto enthusiasts choose forged wheels over other types of wheels. The advantage that's main of wheels their durability and strength. These wheels are much stronger and more durable than cast wheels because of the process forging. This makes them less likely to crack or break under stress, which can help keep you safe on the road.
Another advantage of forged wheels are their weight. Because they are made from high-quality materials, forged wheels are often lightweight. This can improve your vehicle's acceleration and handling, as well as reduce wear and tear on your tires and suspension.
Innovation in Forged Wheels
One reason why forged wheels are so solid and durable they used an manufacturing process innovative. The process creating heating a metal billet into the preferred form using a hydraulic push until it malleable, then pressing it. This produces a wheel with a tighter grain framework, which makes it more powerful and more resistant to cracks and damages.
Safety Benefits of Forged Wheels
Safety is actually a concern that's leading for all drivers, as well as tires created assist to enhance your vehicle's safety in a true number of methods. Since they are actually much a lot resilient extra to various other kinds of Wheels , created tires are much less most probably to break or even break under stress. This implies you much less most probably to expertise a blowout or even various other event major tire-related.
Along with their durability, created tires can easily likewise enhance your vehicle's dealing with as well as stability. The lighter value of these wheels can easily decrease value Unsprang which can easily enhance your vehicle's dexterity as well as cooperation. This will help you prevent accidents and also remain in control of your vehicle while driving.
How to Use Forged Wheels
Utilizing wheels forged is actually simple, however it is essential to understand exactly just what to anticipate when the change created by you. Forged wheels are need much less maintenance compared to however cast them cleanse as well as without dust as well as particles wheels it still essential to always keep all of. You might likewise have to have actually your tires stabilized and lined up much a lot extra often along with forged wheels, as they could be much a lot delicate alterations extra equilibrium as well as alignment.
Service and Quality Considerations
It is essential to select a quality top as well as installer if you thinking about changing to tires created. The high premium top of tires are created select will certainly effect their efficiency and resilience, therefore it is essential to select a producer reliable as well as utilizes high-quality products and procedures.
It is likewise necessary to select an installer along with proficiency as well as expertise in dealing with created tires. Incorrect installation can lead to problems easily such as tire resonance, which can easily adversely effect your vehicle's efficiency as well as safety.
Applications of Forged Wheels
Forged wheels are actually an option fantastic along with a selection broad of as well as applications. They could be utilized on cars as well as competing vehicles to enhance velocity and dealing with, or even on vehicles and SUVs to enhance resilience as well as efficiency off-road. Regardless of what kind of car you drive, custom forged wheels can easily offer efficiency safety considerable.
Source: https://www.khrwheels.com/product-wholesale-15-to-24-inch-6061-t6-aluminum-alloy-monoblock-forged-wheels-rims-for-mercedes-benz-cls35 | ndjje_dijruu_91a0196341b4 | |
1,881,164 | Be the core of 5G base station. YMIN capacitor achieve new results. | Be the core of 5G base station. YMIN capacitor achieve new results. for more detials,... | 0 | 2024-06-08T07:44:27 | https://dev.to/yolosaki/be-the-core-of-5g-base-station-ymin-capacitor-achieve-new-results-lj5 | 5g, networking, network | Be the core of 5G base station. YMIN capacitor achieve new results. for more detials, Visit;
https://www.ymin.cn/news/5g-base-station-technology-innovation-key-role-and-performance-advantages-of-ymin-capacitors/
| yolosaki |
1,881,162 | Alloy Wheels Finishes: Chrome, Painted, or Polished? | Hc5f12432d7ab4c2a9dcc3f90507b19daA.jpg Alloy Wheels Finishes: Chrome, Painted, or Polished Alloy... | 0 | 2024-06-08T07:41:41 | https://dev.to/ndjje_dijruu_91a0196341b4/alloy-wheels-finishes-chrome-painted-or-polished-i3a | Hc5f12432d7ab4c2a9dcc3f90507b19daA.jpg
Alloy Wheels Finishes: Chrome, Painted, or Polished
Alloy wheels are the addition that's perfect in any vehicle, and they can help make your ride look even better. But did you know there different finishes available for alloy wheels? We’ll take a look at the advantages of each finish, as well as how to use and maintain them.
Advantages of Chrome Finish
Chrome wheels are a finish classic and for good reason. They give a sleek and standout look to your car, as well as a high-shine finish can last a time long. Chrome finish is also provides better resistance against corrosion, making it an choice cars ideal will be driven in tough environments.
Painted finishes is the finish most popular alloy wheels, and for good reason. They offer a array wide of options, and can be customized to match the color of your car. Additionally, painted finishes are incredibly durable, and can withstand a deal great of and tear without showing signs of damage.
Polished finishes offer a type different of than chrome finishes. They have a appearance mirror-like which can give your car a very look distinct. They also do a working job great of light, which can make your car much more visible on the road. Polished finishes have a surface smooth makes them easy to clean, and they resist surface damage.
Innovation in Alloy Wheel Finishes
Alloy wheel finishes are constantly evolving, and today’s finishes better than ever. Modern finishes use the technology latest to offer longer-lasting finishes easier to clean and maintain. Many finishes that are new offer added strength and durability, making them even better at withstanding environments tough.
Safety and Use
It is essential to use alloy high-quality on your car. High-quality alloy wheels are designed to improve your car's safety by providing better handling and stability. When choosing alloy wheels on car, it is important to consider the quality of the finish as well.
How to Use and Maintain Alloy Wheels
Appropriate upkeep is essential to always keep your wheels appearing their best. Cleaning your tires are actually routinely will certainly assist eliminate gunk and dust can easily damages the surface. Furthermore, utilizing a cleansing that is top quality is actually particularly developed for alloy wheels can easily assist safeguard all of them coming from scrapes as well as various other kinds of damage. When chemicals utilizing cleanse your wheels, make sure to comply with the manufacturer's directions thoroughly.
Service and Quality
When it concerns alloy tires, high top premium is essential. Top quality Aluminum alloy wheels will certainly deal much a lot better efficiency as well as final much a lot longer compared to lower-quality tires. Furthermore, it is essential to have actually your wheels serviced routinely to guarantee they remain in great problem. Routine upkeep can easily assist avoid damages as well as guarantee your wheels last as long as possible.
Application
Alloy tires could be utilized on a selection broad of, coming from cars to sedans. Some brand names also create customized alloy wheels that are actually developed particularly for sure kinds of vehicles. When selecting alloy wheels for your vehicle, it is essential to select a surface as well as style will certainly suit the design of your vehicle. Some surfaces, such as chrome, might be actually better suited on some vehicles compared to others.
Source: https://www.khrwheels.com/application/alloy-wheels | ndjje_dijruu_91a0196341b4 | |
1,881,161 | How to Create Linux virtual machine on Azure SSH into Linux server and install nginx on it. | In this article we will create a linux virtual mirchine, SSH into the Linux server and also install... | 0 | 2024-06-08T07:40:59 | https://dev.to/olaraph/how-to-install-linux-virtual-machine-on-azure-and-ssh-into-linux-server-4oon | In this article we will create a linux virtual mirchine, SSH into the Linux server and also install nginx! on the virtual machine.
Lets Begin:
Login On Azure Website Type and Search for Virtual Machine and select Virtual machine
Click on the +create button (virtual machine hosted by Azure )
Click on +create on your extreme left
Select Azure Virtual Machine from the options.
Under project details for resource group click on Create New and give it a name (make it a special name or name of a project)
Under the Instance give your virtual machine a name of your choice.
Select a region of your choice
Select the availability zones (this is dependent on how highly available you want the virtual machine to be you can choose zone1 and zone2 if you want the VM to be highly available and you can choose zone1,zone2 and zone3 if you want your VM to be very highly available its all dependent on your budget, the higher the availability the higher the cost)
Because you are creating a Linux VM for image you will select Ubuntu Server
For Administrator type Select password (With this you can access your VM with password rather than SSH Public keys)
Create a User Name and Password of your choice
Under select inbound port SELECT HTTP and SSH this will enable us to view our virtual machine as a web page.
Click on the Monitoring tab and disable boot diagnostic
Then click on tags tab and tag the VM by putting your name or company name.
Click on create and Review wait for it to validate or show green.
Once Validation is passed Select Create
Once the deployment is complete, click on Go to Resource
Click on the ip address to increase the idle timeout
Increase the idle time out to 30min (this is to avoid your VM timing out after 5min )
After you are done with that then click save and hit the X sign on the right.
You have successfully created a Linux Virtual Machine, In other to connect to it or to SSH to it , open the power shell application on your windows laptop and type SSH |space |VM Name|VMipaddress NB there is no space between the VM name and ip address as seen below then click enter
You will be asked if you would like to continue then you type Yes
Then you will be asked for password then type the VM password you created and press Enter NB when you are typing your password it will be invisible that’s how Linux protects its self just keep typing when you are done hit the enter button.
Once the Password is correct the power shell will connect to the Linux VM after that it will instruct that for you to run command as an administrator you need to be connected as user “Root” you will use the Sudo command to achieve this next is type sudo su and hit Enter
After that you are connected as a root “user” then you can now instruct apt to install apt nginx by typing “apt install nginx” then hit Enter
Now let us confirm if nginx! Was actually installed on the virtual machine, we can do this by going to your Azure site and copy the ip address and paste it on the web page and see the result.
Copy ip address
Paste the ip address to the browser
From the result you can see that nginx! Has been successfully installed on the virtual machine. | olaraph | |
1,881,157 | #Rest-Assured: A Powerful Framework for RESTful API Testing | Ronal Daniel Lupaca Mamani Rest-Assured is a Java library specifically designed to facilitate... | 0 | 2024-06-08T07:38:11 | https://dev.to/ronal_daniellupacamaman/rest-assured-a-powerful-framework-for-restful-api-testing-2e0b | Ronal Daniel Lupaca Mamani
Rest-Assured is a Java library specifically designed to facilitate testing of RESTful services. Its simplicity and effectiveness have made Rest-Assured a popular tool among developers and testers looking to validate HTTP responses and verify data in JSON and XML formats.
## Key Features
1. **BDD Style Syntax**: Rest-Assured allows you to write tests in a Behavior Driven Development (BDD) style, making your tests more readable and maintainable.
2. **Support for JSON and XML**: Makes it easy to work with data in JSON and XML format, two of the most common formats in modern APIs.
3. **Integration with Test Frameworks**: Integrates seamlessly with test frameworks such as JUnit and TestNG, allowing for simple and familiar test execution.
4. **Wide Range of Verification Methods**: Offers a variety of methods for validating responses, including HTTP status codes, response structures, and specific values in the returned data.
## Real-World Example
Here's a simple example that demonstrates how to use Rest-Assured to make a GET request and validate the response:
```java
import io.restassured.RestAssured;
import static io.restassured.RestAssured.*;
import static org.hamcrest.Matchers.*;
public class ApiTest {
public void getUsers() {
RestAssured.baseURI = "http://api.ejemplo.com";
given().
when().
get("/users").
then().
statusCode(200).
body("data.size()", greaterThan(0));
}
}
```
### Code Explanation
1. **Base URI**: The base URI is set for REST requests. In this case, `http://api.ejemplo.com`.
2. **GET Request**: A GET request is made to the `/users` endpoint.
3. **Validations**:
- The status code of the response is verified to be 200, indicating a successful request.
- It ensures that the size of the data array in the response is greater than 0, validating that user data is returned.
## Advantages of Using Rest-Assured
1. **Ease of Use**: Rest-Assured's syntax is simple and straightforward, reducing the learning curve and allowing development and testing teams to get started quickly.
2. **Extensive Documentation**: It has complete and detailed documentation that facilitates the resolution of doubts and problems during implementation.
3. **Flexibility**: Supports a large number of HTTP operations and data formats, adapting to the needs of most modern applications.
## Conclusion
Rest-Assured is a powerful and accessible tool for testing RESTful APIs. Its ease of use, combined with its advanced capabilities, make it an ideal choice for both developers and testers. Implementing Rest-Assured into your testing workflow can significantly improve the quality and reliability of your APIs, ensuring they meet expectations for functionality and performance.
| ronal_daniellupacamaman | |
1,881,160 | Rare Metals Extraction: Technologies and Techniques | photo_6264659154035654080_w.jpg Rare metals are valuable elements that are used in many technologies... | 0 | 2024-06-08T07:38:09 | https://dev.to/amanda_andersongh_189c006/rare-metals-extraction-technologies-and-techniques-39fm | design | photo_6264659154035654080_w.jpg
Rare metals are valuable elements that are used in many technologies that are important. Extraction of these metals are from their ores requires technologies advanced techniques. We will discuss some of the advantages, innovations, safety measures, and applications of rare metals extraction.
Advantages of Rare Metals Extraction:
Rare metals have many advantages that make them valuable in our modern world. Some of these advantages include high conductivity electrical resistance to corrosion, and special magnetic properties. These metals used in electronics, solar panels, and batteries. By extracting these rare metals, we can create better and more products durable.
Innovation in Rare Metals Extraction:
Innovative technologies are constantly being developed to make metals rare tungsten cube more sustainable and efficient. One innovation such as the use of bleaching, which involves bacteria using extract metals from ores. Another innovation is the use of hydrometallurgy, which involves using solutions water-based metals extract. These innovations are helping us to reduce the impact environmental of metals extraction.
Safety Measures in Rare Metals Extraction:
Rare metals are extraction can be dangerous if proper safety measures not taken. It is important to wear gear protective such as goggles and gloves, and safety follow to prevent injury. Extraction facilities should have emergency response also plans in place in case of accidents. By prioritizing safety, we can ensure rare metals extraction done responsibly.
Uses of Rare Metals:
Rare metals have a variety of uses, ranging from electronics to medicine. For example, indium is used in LCD screens and cells solar while platinum used in catalytic converters and fuel cells. Lithium is used in batteries, and silver is used in photography and medicine. Rare metals play a role that's important our lives daily and their extraction necessary to build the tungsten carbide metal products we use.
How to Use Rare Metals Extraction:
To extract metals that are rare ores must be mined and then processed through a variety of techniques. These techniques may include grinding the ore into smaller particles, applying heat and chemicals to the ore, and using methods like bleaching or hydrometallurgy. Once the metal rare been extracted, it can be purified and used in manufacturing.
Quality and Application of Rare Metals:
When it comes to metals that are rare, quality is important to ensure the metals meet the necessary specifications for their intended application. For example, the purity of palladium is used in catalytic converters must meet certain standards to ensure the converter catalytic properly, reducing emissions. Rare metals extraction services prioritize tungsten metal quality that shall be able to deliver materials meet specific needs and perform to the highest standards. | amanda_andersongh_189c006 |
1,881,159 | The Future of Wheels Manufacturing: Innovation and Sustainability | Hc5f12432d7ab4c2a9dcc3f90507b19daA.jpg Title: The Future of Wheels Manufacturing: Innovation and... | 0 | 2024-06-08T07:35:08 | https://dev.to/ndjje_dijruu_91a0196341b4/the-future-of-wheels-manufacturing-innovation-and-sustainability-3mnp | Hc5f12432d7ab4c2a9dcc3f90507b19daA.jpg
Title: The Future of Wheels Manufacturing: Innovation and Sustainability
The future of wheels manufacturing is a topic that's essential of in today's world, where mobility has become a necessity. The wheels on cars, bicycles, and other modes of transportation play a role that's crucial and ensuring safety and efficiency. Manufacturers constantly striving to innovate and make the production of wheels more sustainable. We will discuss the advantages, innovation, safety, use, and service of wheels manufacturing, and how quality and application also factors critical.
Advantages of Innovations in Wheels Manufacturing
Innovation in wheel manufacturing has led to the creation of lighter, sturdier, and more wheels durable. These advanced features have resulted in safer and more mobility efficient. The use of high-strength metals and alloys, such as Aluminum and Carbon fiber, has allowed for weight reduction without compromising integrity structural. This approach innovative had several advantages, offering more considerable fuel efficiency, making vehicles faster, and reducing their overall cost of operation.
Innovation in Wheels Manufacturing
Recent advancements in technology have impacted the manufacturing industry, and Wheels manufacturers are no exception. State-of-the-art machines and technologies have made wheels manufacturing more efficient, precise, and sustainable, saving time and resources. Among these technological advancements printing 3D where wheel prototypes can be created quickly and precisely.
Safety and the Use of Wheels
When it comes to wheels, safety is always a priority that's top. They are responsible for supporting the weight entire of vehicle. Therefore, wheels' manufacturing must meet the safety standards highest. Car manufacturers perform thorough testing and standards stringent car wheels approving use in their vehicles. The use of high-quality and durable materials has enabled manufacturers to make wheels safer and can withstand more stresses significant.
The service of Wheels
Wheels require continuous maintenance and service periodic ensure they performing at their best. This maintenance is usually performed by trained professionals and involves the inspection of wheels for faults, preserving them against extreme weather and environmental elements, and ensuring performance reliable. The use of cutting-edge equipment diagnostic is it's easy to identify and fix any errors in wheel performance.
Quality and Application of Wheels
Quality and application are two factors that are critical influence wheels of car manufacturing. High-quality wheels are essential for ensuring the safety and efficiency of vehicles. They must meet standards and regulations set by regulatory bodies such as the National Highway Traffic Safety Administration (NHTSA). To meet these standards, manufacturers must perform rigorous testing to ensure their products' reliability and performance.
In terms of application, different types of wheels are designed for specific purposes. For example, Racing wheels are designed for speed and performance, while wheels for trucks made to handle heavy weights and terrains different. It's essential to ensure the wheels that are used designed for their intended purpose.
Source: https://www.khrwheels.com/Wheels- | ndjje_dijruu_91a0196341b4 | |
1,881,158 | Menu Animation in Action | Hello, fellow developers! I'm excited to share with you a new short video on my YouTube channel,... | 0 | 2024-06-08T07:34:20 | https://dev.to/dipakahirav/menu-animation-in-action-1hng | javascript, css, webdev, programming | Hello, fellow developers!
I'm excited to share with you a new short video on my YouTube channel, **devDive with Dipak**. This video gives a brief introduction to the fascinating world of JavaScript, perfect for both beginners and those looking to refresh their knowledge.
[](https://youtube.com/shorts/ZaJogAprntk?si=J4XjpMwYimfEv815)
In this video, you’ll get a quick overview of JavaScript's capabilities and why it's such an essential language in web development. Whether you're just starting your coding journey or you’re a seasoned developer, this short video provides valuable insights in just a few minutes.
### Key Takeaways:
- **JavaScript Basics**: Understand the fundamental concepts of JavaScript.
- **Interactive Elements**: Learn how JavaScript enhances the interactivity of web pages.
- **Quick and Easy**: Perfect for those with a busy schedule, this video is designed to deliver maximum value in a short amount of time.
Check out the video and don't forget to like, comment, and subscribe to **devDive with Dipak** for more insightful content. Your support means a lot and helps me create more educational content for the community.
Stay tuned for more videos, and happy coding!
*Follow me for more tutorials and tips on web development. Feel free to leave comments or questions below!*
#### Follow and Subscribe:
- **Website**: [Dipak Ahirav] (https://www.dipakahirav.com)
- **Email**: dipaksahirav@gmail.com
- **Instagram**: [devdivewithdipak](https://www.instagram.com/devdivewithdipak)
- **YouTube**: [devDive with Dipak](https://www.youtube.com/@DevDivewithDipak?sub_confirmation=1
)
- **LinkedIn**: [Dipak Ahirav](https://www.linkedin.com/in/dipak-ahirav-606bba128) | dipakahirav |
1,881,156 | Metal Alloy Profiles: Enhancing Structural Integrity in Construction | Steel Alloy Accounts: Improving Frameworks as well as Building Are actually you structure your... | 0 | 2024-06-08T07:31:37 | https://dev.to/amanda_andersongh_189c006/metal-alloy-profiles-enhancing-structural-integrity-in-construction-2hna | design |
Steel Alloy Accounts: Improving Frameworks as well as Building
Are actually you structure your personal home Or even most likely searching for building products that might protect your home's architectural stability After that look no more compared to steel alloy accounts! we will talk about exactly how steel alloy accounts are actually ingenious as well as risk-free, as well as exactly just what benefits they give building. We will likewise deal with using steel alloy accounts as well as ways to utilize all of them, the high top premium of solution they deal, as well as where they could be been applicable
Benefits of Steel Alloy Accounts
Steel alloy accounts are actually solid as well as resilient tungsten carbide metal products that can easily endure the examination of your time. These products have actually galvanized zinc coverings, that make all of them immune towards rust as well as rusting. Compared with conventional building products, steel alloy accounts offer a much better strength-to-weight proportion, which implies they are actually light-weight however durable. Consequently, they enable developers as well as designers towards offer outstanding style versatility while still offering much a lot better architectural stability
Development as well as Security of Steel Alloy Accounts
Steel alloy accounts are actually extremely ingenious compared with various other building products. They satisfy security as well as high top premium requirements collection due to the federal authorities, as well as they comply with stringent policies that create all of them risk-free also throughout ecological catastrophes like quakes or even typhoons. Steel alloy accounts are actually pre-engineered, which implies they follow requirement specs that have actually been actually shown towards provide ideal efficiency for any type of provided framework. This creates all of them risk-free towards utilize in jobs that need higher niobium metal accuracy as well as precision
Use Steel Alloy Accounts
Steel alloy accounts could be utilized in different building jobs like structures, bridges, nuclear power plant, as well as flight terminals. They can easily likewise be actually been applicable in domestic building. Because steel alloy accounts are actually light-weight, it decreases the tons on structure structures, enabling much a lot extra cost financial savings as well as affordable building. They are actually likewise simple towards set up, creating the building procedure quicker
Ways to Utilize Steel Alloy Accounts
Utilizing steel alloy accounts is actually quite simple! They could be quickly reduce as well as bonded utilizing common metalwork methods like sawing, welding, reducing, as well as drilling. This creates all of them an outstanding option for fast as well as simple setup. They are actually likewise immune towards contortion as well as bending, significance that they can easily preserve their form despite their atmosphere
Solution as well as High top premium of Steel Alloy Accounts
Steel alloy accounts are available in different surfaces, shades, as well as forms. They likewise deal a wide variety of solutions towards accommodate private requirements. For example, some providers deal personalized accounts based upon structure demands, offering project-specific services. Welding solutions, completing solutions, as well as shipment solutions are actually amongst the various other solutions provided through steel alloy service companies. For that reason, clients can easily delight in fantastic solutions as well as high top premium tungsten cube items easily
Request of Steel Alloy Accounts
Lastly, steel alloy accounts are actually flexible. They could be utilized in a wide variety of requests towards fit various building requirements. For example, steel alloy accounts could be utilized in building sheds, outdoor patio areas, as well as whole structures. They can easily likewise be actually utilized as sustains for photovoltaic panels, roofing systems, as well as rain seamless gutter systems. Furthermore, steel alloy accounts could be utilized as barriers, fencing, as well as as component of windows and doors, to name a few points
| amanda_andersongh_189c006 |
1,881,155 | Laravel 11 - Building API using Sanctum | Table of Contents Laravel 11 - Building API using Sanctum - Table of Contents Step... | 0 | 2024-06-08T07:29:40 | https://dev.to/akramghaleb/laravel-11-building-api-using-sanctum-18m | ##### Table of Contents
- [Laravel 11 - Building API using Sanctum](#laravel-11---building-api-using-sanctum)
- [Table of Contents](#table-of-contents)
- [Step 1: Install Laravel 11](#step-1-install-laravel-11)
- [Step 2: Install Sanctum API](#step-2-install-sanctum-api)
- [Step 3: Sanctum Configuration](#step-3-sanctum-configuration)
- [Step 4: Add Blog Migration and Model](#step-4-add-blog-migration-and-model)
- [Step 5: Create Eloquent API Resources](#step-5-create-eloquent-api-resources)
- [Step 6: Create Controller Files](#step-6-create-controller-files)
- [Step 7: Create API Routes](#step-7-create-api-routes)
- [Step 8: Run Laravel App](#step-8-run-laravel-app)
- [Step 9: Check following API](#step-9-check-following-api)
## Step 1: Install Laravel 11
Open your terminal and Install new Laravel application
```
composer create-project laravel/laravel sanctum-api
```
Switch to the project folder
```
cd sanctum-api
```
## Step 2: Install Sanctum API
Run the following command to install Sanctum with API
```
php artisan install:api
```
## Step 3: Sanctum Configuration
In app/Models/User.php, we added the HasApiTokens class of Sanctum
```php
<?php
namespace App\Models;
// use Illuminate\Contracts\Auth\MustVerifyEmail;
use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Foundation\Auth\User as Authenticatable;
use Illuminate\Notifications\Notifiable;
use Laravel\Sanctum\HasApiTokens;
class User extends Authenticatable
{
use HasFactory, Notifiable, HasApiTokens;
/**
* The attributes that are mass assignable.
*
* @var array<int, string>
*/
protected $fillable = [
'name',
'email',
'password',
];
/**
* The attributes that should be hidden for serialization.
*
* @var array<int, string>
*/
protected $hidden = [
'password',
'remember_token',
];
/**
* Get the attributes that should be cast.
*
* @return array<string, string>
*/
protected function casts(): array
{
return [
'email_verified_at' => 'datetime',
'password' => 'hashed',
];
}
}
```
## Step 4: Add Blog Migration and Model
Run the following command to add Blog migration and model
```
php artisan make:model Blog -m
```
After that go to database/migrations and you will find the created migration file
```php
<?php
use Illuminate\Database\Migrations\Migration;
use Illuminate\Database\Schema\Blueprint;
use Illuminate\Support\Facades\Schema;
return new class extends Migration
{
/**
* Run the migrations.
*/
public function up(): void
{
Schema::create('blogs', function (Blueprint $table) {
$table->id();
$table->string('title');
$table->longText('detail');
$table->timestamps();
});
}
/**
* Reverse the migrations.
*/
public function down(): void
{
Schema::dropIfExists('blogs');
}
};
```
Then go to app/Models/Blog.php
```php
<?php
namespace App\Models;
use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;
class Blog extends Model
{
use HasFactory;
protected $fillable = [
'title', 'detail'
];
}
```
## Step 5: Create Eloquent API Resources
Run the following commands to create Blog API Resources
```
php artisan make:resource BlogResource
```
Then go to app/Http/Resources/BlogResource.php
```php
<?php
namespace App\Http\Resources;
use Illuminate\Http\Request;
use Illuminate\Http\Resources\Json\JsonResource;
class BlogResource extends JsonResource
{
// Transform the resource into an array.
public function toArray(Request $request): array
{
return [
'id' => $this->id,
'title' => $this->title,
'detail' => $this->detail,
'created_at' => $this->created_at->format('d/m/Y'),
'updated_at' => $this->updated_at->format('d/m/Y'),
];
}
}
```
## Step 6: Create Controller Files
Run the following commands to add BaseController & RegisterController & BlogController
```
php artisan make:controller API/BaseController
php artisan make:controller API/RegisterController
php artisan make:controller API/BlogController
```
Then go to app/Http/Controllers/API/BaseController.php and add this code
```php
<?php
namespace App\Http\Controllers\API;
use App\Http\Controllers\Controller;
use Illuminate\Http\Request;
class BaseController extends Controller
{
// success response method
public function sendResponse($result, $message)
{
$response = [
'success' => true,
'data' => $result,
'message' => $message,
];
return response()->json($response, 200);
}
// return error response
public function sendError($error, $errorMessages = [], $code = 404)
{
$response = [
'success' => false,
'message' => $error,
];
if(!empty($errorMessages)){
$response['data'] = $errorMessages;
}
return response()->json($response, $code);
}
}
```
Now go to app/Http/Controllers/API/BaseController.php
```php
<?php
namespace App\Http\Controllers\API;
use App\Http\Controllers\Controller;
use Illuminate\Http\Request;
use App\Models\User;
use Illuminate\Support\Facades\Auth;
use Illuminate\Http\JsonResponse;
use Illuminate\Support\Facades\Validator;
class RegisterController extends BaseController
{
// Register api
public function register(Request $request): JsonResponse
{
$validator = Validator::make($request->all(), [
'name' => 'required',
'email' => 'required|email',
'password' => 'required',
'c_password' => 'required|same:password',
]);
if($validator->fails()){
return $this->sendError('Validation Error.', $validator->errors());
}
$input = $request->all();
$input['password'] = bcrypt($input['password']);
$user = User::create($input);
$success['token'] = $user->createToken('MyApp')->plainTextToken;
$success['name'] = $user->name;
return $this->sendResponse($success, 'User register successfully.');
}
// Login api
public function login(Request $request): JsonResponse
{
if(Auth::attempt(['email' => $request->email, 'password' => $request->password])){
$user = Auth::user();
$success['token'] = $user->createToken('MyApp')->plainTextToken;
$success['name'] = $user->name;
return $this->sendResponse($success, 'User login successfully.');
}
else{
return $this->sendError('Unauthorised.', ['error'=>'Unauthorised']);
}
}
}
```
Finally, go to app/Http/Controllers/API/BlogController.php
```php
<?php
namespace App\Http\Controllers\API;
use App\Http\Controllers\Controller;
use Illuminate\Http\Request;
use App\Http\Controllers\API\BaseController;
use App\Models\Blog;
use App\Http\Resources\BlogResource;
use Illuminate\Http\JsonResponse;
use Illuminate\Support\Facades\Validator;
class BlogController extends BaseController
{
// Display a listing of the resource.
public function index(): JsonResponse
{
$blogs = Blog::all();
return $this->sendResponse(BlogResource::collection($blogs), 'Blogs retrieved successfully.');
}
// Store a newly created resource in storage.
public function store(Request $request): JsonResponse
{
$input = $request->all();
$validator = Validator::make($input, [
'title' => 'required',
'detail' => 'required'
]);
if($validator->fails()){
return $this->sendError('Validation Error.', $validator->errors());
}
$blog = Blog::create($input);
return $this->sendResponse(new BlogResource($blog), 'Blog created successfully.');
}
// Display the specified resource.
public function show($id): JsonResponse
{
$blog = Blog::find($id);
if (is_null($blog)) {
return $this->sendError('Blog not found.');
}
return $this->sendResponse(new BlogResource($blog), 'Blog retrieved successfully.');
}
// Update the specified resource in storage.
public function update(Request $request, Blog $blog): JsonResponse
{
$input = $request->all();
$validator = Validator::make($input, [
'title' => 'required',
'detail' => 'required'
]);
if($validator->fails()){
return $this->sendError('Validation Error.', $validator->errors());
}
$blog->title = $input['title'];
$blog->detail = $input['detail'];
$blog->save();
return $this->sendResponse(new BlogResource($blog), 'Blog updated successfully.');
}
// Remove the specified resource from storage.
public function destroy(Blog $blog): JsonResponse
{
$blog->delete();
return $this->sendResponse([], 'Blog deleted successfully.');
}
}
```
## Step 7: Create API Routes
In this step we will create API routes for login, register, and blogs.
Go to routes/api.php
```php
<?php
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Route;
use App\Http\Controllers\API\RegisterController;
use App\Http\Controllers\API\BlogController;
Route::controller(RegisterController::class)->group(function(){
Route::post('register', 'register')->name('register');
Route::post('login', 'login')->name('login');
});
Route::middleware('auth:sanctum')->group( function () {
Route::apiResource('blogs', BlogController::class);
Route::get('user', function (Request $request) {
return $request->user();
})->name('user');
});
```
## Step 8: Run Laravel App
Run the database migrations (Set the database connection in .env before migrating)
```
php artisan serve
```
Start the local development server
```
php artisan serve
```
## Step 9: Check following API
Now, go to your Postman to check api
Make sure in the details API, we will use the following headers as listed below
```json
'headers' => [
'Accept' => 'application/json',
'Authorization' => 'Bearer '.$accessToken,
]
```
Now you can simply run the above listed URLs as shown in the screenshot below:
| Postman |
|-------------------------------------|
||
||
||
||
||
||
||
||
[Note: You can download postman file from here](https://github.com/akramghaleb/Laravel-11-Building-API-using-Sanctum/blob/main/postman/Laravel%20Sanctum.postman_collection.json)
[Github Repo](https://github.com/akramghaleb/Laravel-11-Building-API-using-Sanctum)
Thanks,
If you enjoy my work, consider buying me a coffee to keep the creativity flowing!
<a href="https://www.buymeacoffee.com/akramghaleb" target="_blank"><img src="https://cdn.buymeacoffee.com/buttons/v2/default-red.png" alt="Buy Me A Coffee" width="150" ></a>
| akramghaleb | |
1,881,154 | Need help to fix vulnerabilities | npm audit report nth-check <2.0.1 Severity: high Inefficient Regular Expression... | 0 | 2024-06-08T07:29:12 | https://dev.to/aman_kaliwar_23cada90e79b/need-help-to-fix-vulnerabilities-ge7 | react | # npm audit report
nth-check <2.0.1
Severity: high
Inefficient Regular Expression Complexity in nth-check -
fix available via `npm audit fix --force`
Will install react-scripts@3.0.1, which is a breaking change
node_modules/svgo/node_modules/nth-check
css-select <=3.1.0
Depends on vulnerable versions of nth-check
node_modules/svgo/node_modules/css-select
svgo 1.0.0 - 1.3.2
Depends on vulnerable versions of css-select
node_modules/svgo
@svgr/plugin-svgo <=5.5.0
Depends on vulnerable versions of svgo
node_modules/@svgr/plugin-svgo
@svgr/webpack 4.0.0 - 5.5.0
Depends on vulnerable versions of @svgr/plugin-svgo
node_modules/@svgr/webpack
react-scripts >=2.1.4
Depends on vulnerable versions of @svgr/webpack
Depends on vulnerable versions of resolve-url-loader
node_modules/react-scripts
postcss <8.4.31
Severity: moderate
PostCSS line return parsing error -
fix available via `npm audit fix --force`
Will install react-scripts@3.0.1, which is a breaking change
node_modules/react-scripts/node_modules/resolve-url-loader/node_modules/postcss
resolve-url-loader 0.0.1-experiment-postcss || 3.0.0-alpha.1 - 4.0.0
Depends on vulnerable versions of postcss
node_modules/react-scripts/node_modules/resolve-url-loader
8 vulnerabilities (2 moderate, 6 high) | aman_kaliwar_23cada90e79b |
1,881,153 | Step Up Your Style with Trending Sandals for Women in 2024 | Can you sense the summer season vibes inside the air? It is that point of the 12 months again –... | 0 | 2024-06-08T07:26:20 | https://dev.to/southern_lily_43532034fa6/step-up-your-style-with-trending-sandals-for-women-in-2024-e5n | wpmensandals, fashion, southernlilyboutique | Can you sense the summer season vibes inside the air? It is that point of the 12 months again – whilst we bid adieu to boots and welcome the season of [sandals](https://shopsouthernlily.com/products/weeboo-feel-it-platform-heel-sandals?_pos=1&_sid=faaab60b5&_ss=r) with open palms. And bet what? Southern lily Boutique has some beautiful alternatives lined up only for you.
Lets start with the communicate of the metropolis – the today's trending sandals for women.fashionable flats, sublime platforms, and latest stylish sandals for women. Our collection is all about celebrating diversity in style, so whether you are a minimalist or a maximalist, there's something here to in shape your vibe.
Calling all adventurers! If you are planning to embark on lengthy walks or city explorations this summer time then most comfortable sandals for problem feet women's are here, our variety of persistence sandals is tailor-made for you.
And for the ones unique events that call for a touch of class, look no in addition than our heeled summer sandals. But wait, there is extra! Our heeled summer time sandals are here to make a assertion throughout those balmy nights out. Whether you are sipping cocktails through the seashore or hitting the dance floor, these sandals will make certain you are the talk of the metropolis – for all the right reasons.
So, what are you waiting for? Dive into summer with Southern lily Boutique's collection of sandals that blend style, comfort, and versatility seamlessly. Your perfect pair awaits – snag them before they are gone! | southern_lily_43532034fa6 |
1,881,152 | Forged Wheels: Engineered for Performance and Safety | Hc5f12432d7ab4c2a9dcc3f90507b19daA.jpg 4 Reasons Why Forged Wheels a Go-To for Any Car... | 0 | 2024-06-08T07:25:59 | https://dev.to/ndjje_dijruu_91a0196341b4/forged-wheels-engineered-for-performance-and-safety-3k83 | Hc5f12432d7ab4c2a9dcc3f90507b19daA.jpg
4 Reasons Why Forged Wheels a Go-To for Any Car Enthusiast
Are you looking to upgrade your car’s performance and safety features? Look no further than forged wheels. These wheels are top-of-the-line that's engineered to bring your vehicle to the level next. Here four reasons why you need to invest in forged wheels for your ride.
Advantages of Forged Wheels: Strength and Durability for High-Performance Cars
Forged wheels are made using a manufacturing specialized involves compressing aluminum or other metals under extreme pressures. This creates a more wheel rigid fewer impurities than traditional cast wheels. The result is a stronger, more product reliable that's better and suited for high-performance cars.
Moreover, the reliability of forged wheels means they much less likely to break or crack. This makes them a safer choice for driving on both city roads and terrain off-road. Not only they safer, but they can also withstand higher levels of stress without degrading or failing.
Innovation in Design and Technology: Forged Wheels Bring Unique Style to Your Vehicle
Another advantage of custom forged wheels are the innovation in technology and design they bring to a car. With sleek and stylish designs available, forged wheels can enhance any appeal car’s aesthetic. Furthermore, the materials and engineering aspects of forged wheels add a element futuristic any vehicle they fitted on.
Safety Features: Reduced Braking Distances, And Improved Handling and Traction
Safety is the priority top it comes to driving. Forged wheels are designed to improve a vehicle’s traction and handling. They do this by reducing braking distances, improving acceleration, and assisting with maneuvering around corners. Then forged wheels just what you need to have competitive edge over other racers if you're part of an off-road racing team, for example.
How to Properly Use Forged Wheels
It's important to know how to properly use wheels forged. To start, inspect the wheels for any damage before every use. If any pressing issues found, you should resolve them before driving with the wheels.
Secondly, ensure you only use forged wheels the specification design correct your vehicle. If the type size wrong of wheel used, it can lead to serious problems and accidents.
Quality Service: Forged Wheel Maintenance Tips
Like any other car component, forged wheels are need regular maintenance to keep them functioning at their best. To ensure we recommend routine checks, including tire rotations and alignments you get the service best from your forged wheels.
Also, it’s essential to clean your wheels forged. You can clean your wheels forged a mixture of water and soap, washing the wheels thoroughly, and then air-drying or using a microfiber towel to dry them.
Applications for Forged Wheels
Forged wheels can be used in many ways, and they becoming thanks increasingly popular their durability and reliability. Forged wheels are commonly used in high-performance cars for racing or events sporting but they also used for off-road vehicles. You need to take your ride to the next level that you are you’re looking to upgrade your vehicle, forged rims could be just what.
Source: https://www.khrwheels.com/product-custom-forged-wheels-2-pieces-passenger-car-aluminum-alloy-rims-5x120-wheels-20-inch-for-bmw | ndjje_dijruu_91a0196341b4 | |
1,881,150 | Nonferrous Metals: Essential Components in Modern Industries | Nonferrous Steels: Important Elements in Contemporary Markets Nonferrous steels are actually... | 0 | 2024-06-08T07:23:05 | https://dev.to/amanda_andersongh_189c006/nonferrous-metals-essential-components-in-modern-industries-491l | design |
Nonferrous Steels: Important Elements in Contemporary Markets
Nonferrous steels are actually elements that are important today's contemporary markets. These steels are actually those that don't include iron, creating all of them extremely immune towards corrosion as well as rust. we'll talk about the benefits of utilization nonferrous steels, the development in nonferrous steels, their security, ways to utilize all of them, the high niobium metal premium that is top of they deal, as well as their requests
Benefits of Utilizing Nonferrous Steels
Nonferrous steels deal a true number of benefits in production. For one, nonferrous steels offer higher stamina, resilience, as well as protection towards deterioration. These functions create all of them perfect for utilize in markets like aerospace, automobile, as well as building, where stamina as well as resilience are actually important
Another benefit of nonferrous steels is actually their habits that are non-magnetic. Unlike ferrous steels, nonferrous steels are actually certainly not affected through magnetic areas. This creates all of them perfect for utilize in electric requests, like electrical circuitry as well as transformers
Development in Nonferrous Steels
Development has actually participated in a function that is considerable the advancement of nonferrous steels. R & d have actually resulted in brand-brand new alloys that offer much a lot stamina that is extra higher rust tantalum protection, as well as prolonged use lifestyle. These developments have actually likewise resulted in much a lot extra manufacturing that is effective as well as environmentally-friendly techniques
One development that is noteworthy nonferrous steels is actually using light weight aluminum alloys in the building of airplane. The advancement of these alloys has actually led to lighter as well as much a lot extra fuel-efficient aircrafts, which results in considerable expense cost financial savings as well as decreased effect that is ecological
Security of Nonferrous Steels
Nonferrous steels are actually understood for their security being used. They are actually towards that are immune as well as don't launch hazardous gases in case of a terminate. This creates all of them perfect for utilize in structure building, where security is actually critical
Another security benefit of nonferrous steels is actually their protection towards rust. Rust can easily trigger damages that are architectural steel components, resulting in prospective mishaps. Nonferrous steels are actually immune towards rust, leading to much more items that are secure well as much a lot longer life expectancy
Ways to Utilize Nonferrous Steels
Nonferrous steels work in a variety that is wide of, coming from structure products towards electronic devices. They are actually towards that are simple with, creating all of them perfect for production items that need flexing or even molding. They are actually likewise flexible, enabling a range that is broad of, consisting of paint, powder covering, as well as anodizing
The high premium that is top of Nonferrous Steels Deal
Nonferrous steels deal unrivaled high premium that is top of. They have actually life that is lengthy, are actually immune towards deterioration, as well as need little bit of upkeep. Their tungsten carbide metal rust protection likewise implies they need less repair work as well as substitutes, leading to expense cost savings that are financial companies that utilize all of them
Requests of Nonferrous Steels
Nonferrous steels have actually a variety that is wide of. They work in customer products, like home devices, electronic devices, as well as fashion jewelry that is precious. They are actually likewise important in production, like in the building of airplane as well as vehicles. Their habits that are non-magnetic all of them perfect for utilize in electric requests, such as electrical circuitry as well as transformers
| amanda_andersongh_189c006 |
1,881,149 | unwrap_or_else in Rust | The unwrap_or_else method is used as an Option or Result type. Let's see an example for both. ... | 0 | 2024-06-08T07:21:53 | https://dev.to/francescoxx/unwraporelse-in-rust-2ogh | rust, programming, tutorial, codenewbie | The **unwrap_or_else** method is used as an **Option** or **Result** type.
Let's see an example for both.
___
## unwrap_or_else on an Option
For **Option**, the **unwrap_or_else** method is used to provide a fallback value if the **Option** is None**
```rust
fn main() {
let some_value: Option<i32> = Some(10);
let none_value: Option<i32> = None;
// Using unwrap_or_else on an Option
let result_some = some_value.unwrap_or_else(|| {
println!("some_value was None, using default value.");
0 // Default value
});
let result_none = none_value.unwrap_or_else(|| {
println!("none_value was None, using default value.");
0 // Default value
});
println!("Result when Option is Some: {}", result_some);
println!("Result when Option is None: {}", result_none);
}
```
Output:
```
none_value was None, using default value.
Result when Option is Some: 10
Result when Option is None: 0
```
Explanation:
In this example, we have two **Option** variables, **some_value** and **none_value**. The **some_value** is **Some(10)** and the **none_value** is **None**.
The **unwrap_or_else** method is used on both **Option** variables. The closure passed to **unwrap_or_else** is only called when the **Option** is **None**. In this case, the closure prints a message and returns a default value of 0.
___
## unwrap_or_else on a Result
For **Result**, the **unwrap_or_else** method is used to provide a fallback value if the **Result** is an **Err**.
```rust
fn main() {
let ok_result: Result<i32, &str> = Ok(10);
let err_result: Result<i32, &str> = Err("An error occurred");
// Using unwrap_or_else on a Result
let result_ok = ok_result.unwrap_or_else(|err| {
println!("ok_result was Err: {}, using default value.", err);
0 // Default value
});
let result_err = err_result.unwrap_or_else(|err| {
println!("err_result was Err: {}, using default value.", err);
0 // Default value
});
println!("Result when Result is Ok: {}", result_ok);
println!("Result when Result is Err: {}", result_err);
}
```
Output:
```
Error: Error message
Result when Result is Ok: 10
Result when Result is Err: 0
```
Explanation:
In this example, we have two **Result** variables, **ok_result** and **err_result**. The **ok_result** is **Ok(10)** and the **err_result** is **Err("An error occurred")**.
The **unwrap_or_else** method is used on both **Result** variables. The closure passed to **unwrap_or_else** is only called when the **Result** is **Err**. In this case, the closure prints a message and returns a default value of 0.
___
## Conclusion
In both examples, the **unwrap_or_else** method is used to provide a default value when the **Option** or **Result** is **None** or **Err** respectively.
The **unwrap_or_else** method takes a closure that returns the default value. The closure is only called when the **Option** is **None** or the **Result** is **Err**.
If you find this interesting and you want to get started with Rust, you can check this [FREE playlist on YouTube](https://www.youtube.com/watch?v=R33h77nrMqc&list=PLPoSdR46FgI412aItyJhj2bF66cudB6Qs&index=1&ab_channel=FrancescoCiulla):
| francescoxx |
1,881,148 | Hoisting wasn't that tough! | Hoisting is a unique behavior in JavaScript that often confuses beginners. It refers to the process... | 27,558 | 2024-06-08T07:21:45 | https://dev.to/imabhinavdev/hoisting-wasnt-that-tough-4nbg | webdev, javascript, beginners, tutorial | Hoisting is a unique behavior in JavaScript that often confuses beginners. It refers to the process where variable and function declarations are moved to the top of their containing scope during the compile phase. However, this is an oversimplified explanation. To fully grasp hoisting, we need to dive deeper into the JavaScript engine, understanding concepts such as the execution context, memory creation phase, and code execution phase.
In this blog, we'll explore hoisting in great detail, breaking down each phase and understanding how JavaScript handles variable and function declarations behind the scenes.
## Execution Context
To understand hoisting, we need to start with the concept of the execution context. The execution context is an abstract concept that holds information about the environment within which the current code is being executed. Each execution context has two phases:
1. **Memory Creation Phase**: During this phase, the JavaScript engine sets up the environment for the code execution. It allocates memory for variables and functions.
2. **Code Execution Phase**: During this phase, the code is actually executed line by line.
Every JavaScript program runs inside an execution context. There are three types of execution contexts:
1. **Global Execution Context (GEC)**: This is the default context in which your code starts execution.
2. **Function Execution Context (FEC)**: Each time a function is invoked, a new function execution context is created.
3. **Eval Execution Context**: Code executed inside an `eval` function has its own execution context.
### Global Execution Context
The Global Execution Context is created when the JavaScript file is initially loaded. It contains:
- The Global Object (`window` in browsers, `global` in Node.js)
- The `this` keyword, which refers to the Global Object in the global context.
### Function Execution Context
Every time a function is called, a new Function Execution Context is created. This context contains:
- A new scope chain
- The `this` value specific to the function
- Variable Object (VO)
## Memory Creation Phase
During the memory creation phase, the JavaScript engine scans through the entire code and allocates memory for all variables and function declarations. It sets up the execution environment and prepares for the code execution phase.
### Variables in Memory Creation Phase
For variables declared using `var`, memory is allocated, and they are initialized with `undefined`. This is crucial to understand why accessing a `var` variable before its declaration does not throw a ReferenceError but returns `undefined`.
### Functions in Memory Creation Phase
Function declarations are fully hoisted. This means that the entire function definition is stored in memory during the memory creation phase. As a result, you can call a function before its declaration in the code.
### Example
Consider the following code:
```javascript
console.log(a); // undefined
var a = 10;
console.log(a); // 10
foo(); // "Hello, World!"
function foo() {
console.log("Hello, World!");
}
```
During the memory creation phase:
- `a` is allocated memory and initialized with `undefined`.
- `foo` is allocated memory, and the function definition is stored.
## Code Execution Phase
Once the memory creation phase is complete, the JavaScript engine starts executing the code line by line. During this phase, the actual values are assigned to variables, and functions are executed.
Continuing from the previous example:
```javascript
console.log(a); // undefined
var a = 10;
console.log(a); // 10
foo(); // "Hello, World!"
function foo() {
console.log("Hello, World!");
}
```
- `console.log(a);` logs `undefined` because `a` was initialized with `undefined` during the memory creation phase.
- `var a = 10;` assigns the value `10` to `a`.
- `console.log(a);` logs `10`.
- `foo();` executes the function `foo`, which logs `"Hello, World!"`.
## Hoisting in Variables
### `var` Hoisting
Variables declared with `var` are hoisted to the top of their function or global scope. They are initialized with `undefined` during the memory creation phase.
```javascript
console.log(a); // undefined
var a = 5;
console.log(a); // 5
```
Here, `a` is hoisted and initialized with `undefined`. Hence, the first `console.log` outputs `undefined`, and the second outputs `5`.
### `let` and `const` Hoisting
Variables declared with `let` and `const` are also hoisted but are not initialized. They remain in a "temporal dead zone" (TDZ) from the start of the block until the declaration is encountered. Accessing them before their declaration results in a ReferenceError.
```javascript
console.log(b); // ReferenceError: Cannot access 'b' before initialization
let b = 10;
```
Here, `b` is hoisted but not initialized. Trying to access it before its declaration throws a ReferenceError.
## Hoisting in Functions
Function declarations are hoisted entirely. This means both the function name and its body are moved to the top of the scope.
```javascript
foo(); // "Hello, World!"
function foo() {
console.log("Hello, World!");
}
```
### Function Expressions
Function expressions are not hoisted in the same way. Only the variable declaration is hoisted, not the assignment.
```javascript
bar(); // TypeError: bar is not a function
var bar = function() {
console.log("Hello, World!");
};
```
Here, `bar` is hoisted and initialized with `undefined`. Calling it before assignment results in a TypeError.
## Hoisting with `let` and `const`
`let` and `const` declarations are hoisted to the top of their block scope but are not initialized. They are in the TDZ until the actual declaration is encountered in the code.
```javascript
{
console.log(c); // ReferenceError: Cannot access 'c' before initialization
let c = 20;
}
```
Here, `c` is hoisted to the top of the block but remains uninitialized, resulting in a ReferenceError if accessed before declaration.
## Practical Examples
### Example 1: Variable Hoisting
```javascript
console.log(x); // undefined
var x = 10;
console.log(x); // 10
```
### Example 2: Function Hoisting
```javascript
greet(); // "Hello!"
function greet() {
console.log("Hello!");
}
```
### Example 3: `let` and `const` Hoisting
```javascript
console.log(y); // ReferenceError
let y = 5;
const z = 10;
console.log(z); // 10
```
### Example 4: Function Expression Hoisting
```javascript
console.log(sayHello); // undefined
var sayHello = function() {
console.log("Hi!");
};
sayHello(); // "Hi!"
```
## Checking Hoisting in the Browser
To observe hoisting behavior, you can use the browser's developer tools. Here's how:
1. Open your browser's Developer Tools (usually by right-clicking on the page and selecting "Inspect" or pressing F12).
2. Go to the "Console" tab.
3. Type in or paste your JavaScript code and press Enter.
### Example
```javascript
console.log(a); // undefined
var a = 10;
console.log(a); // 10
foo(); // "Hello, World!"
function foo() {
console.log("Hello, World!");
}
```
Observe the outputs in the console to see how hoisting works.
## Conclusion
Hoisting is a fundamental concept in JavaScript that affects how variables and functions are initialized and accessed. Understanding the memory creation and code execution phases is crucial to comprehending how hoisting works. Remember:
- `var` declarations are hoisted and initialized with `undefined`.
- Function declarations are hoisted entirely.
- `let` and `const` declarations are hoisted but not initialized, leading to the Temporal Dead Zone (TDZ).
By mastering these concepts, you can write more predictable and bug-free JavaScript code. Happy coding! | imabhinavdev |
1,881,147 | A Guide to User and Permission Management in Linux- DevOps Prerequisite 6 | User and Permission Management in Linux User and permission management is a fundamental... | 0 | 2024-06-08T07:21:19 | https://dev.to/iaadidev/a-guide-to-user-and-permission-management-in-linux-4dgk | linux, devops, permission | # User and Permission Management in Linux
User and permission management is a fundamental aspect of Linux system administration. Properly managing users and permissions ensures that your system remains secure and operates smoothly. This article will cover everything a beginner needs to know about user and permission management in Linux, including how to create and manage users, understand and configure permissions, and implement best practices for system security.
## Table of Contents
1. Introduction to User Management
2. Creating and Managing Users
- Creating Users
- Modifying Users
- Deleting Users
3. Group Management
- Creating Groups
- Modifying Groups
- Adding Users to Groups
4. Understanding Linux File Permissions
- Basic Permissions
- Changing Permissions
- Special Permissions
5. Managing File Permissions
- chmod Command
- chown and chgrp Commands
6. Advanced Permission Management
- Access Control Lists (ACLs)
- Default ACLs
7. Best Practices for User and Permission Management
8. Conclusion
## 1. Introduction to User Management
Linux is a multi-user operating system, meaning multiple users can operate on the same system concurrently. Managing these users and their permissions is critical to ensuring system security and efficiency. User management involves creating, modifying, and deleting user accounts, while permission management involves setting the correct access rights to files and directories.
## 2. Creating and Managing Users
### Creating Users
To create a new user in Linux, you use the `useradd` command. This command creates a new user account and sets up the user’s home directory.
```bash
sudo useradd -m newuser
```
The `-m` option creates a home directory for the user.
To set a password for the new user, use the `passwd` command:
```bash
sudo passwd newuser
```
You will be prompted to enter and confirm the new password.
### Modifying Users
You can modify user accounts using the `usermod` command. For example, to change a user’s login name:
```bash
sudo usermod -l newlogin oldlogin
```
To change a user’s home directory:
```bash
sudo usermod -d /new/home/directory -m username
```
The `-d` option specifies the new home directory, and the `-m` option moves the contents from the old directory to the new one.
### Deleting Users
To delete a user, use the `userdel` command:
```bash
sudo userdel username
```
To remove the user’s home directory as well:
```bash
sudo userdel -r username
```
## 3. Group Management
Groups allow you to manage multiple users with similar permissions collectively.
### Creating Groups
To create a new group, use the `groupadd` command:
```bash
sudo groupadd newgroup
```
### Modifying Groups
To change a group name, use the `groupmod` command:
```bash
sudo groupmod -n newgroupname oldgroupname
```
### Adding Users to Groups
To add a user to a group, use the `usermod` command with the `-aG` option:
```bash
sudo usermod -aG groupname username
```
The `-a` option appends the user to the supplementary group(s), and the `-G` option specifies the group.
To verify group membership:
```bash
groups username
```
## 4. Understanding Linux File Permissions
Linux file permissions determine who can read, write, or execute a file. These permissions are divided into three categories: owner, group, and others.
### Basic Permissions
- **Read (r)**: Permission to read the file or directory.
- **Write (w)**: Permission to write to or modify the file or directory.
- **Execute (x)**: Permission to execute the file or access the directory.
### Changing Permissions
Permissions are represented by a set of three characters: `r`, `w`, and `x`, and are grouped in threes for the owner, group, and others.
To view file permissions, use the `ls -l` command:
```bash
ls -l
```
The output will look something like this:
```bash
-rwxr-xr--
```
### Special Permissions
- **Setuid**: Allows a user to run an executable with the file owner's permissions.
- **Setgid**: Allows a user to run an executable with the file group's permissions.
- **Sticky Bit**: Restricts file deletion within a directory to the file owner.
## 5. Managing File Permissions
### chmod Command
The `chmod` command is used to change file permissions. You can use symbolic or numeric modes to set permissions.
#### Symbolic Mode
```bash
chmod u+rwx,g+rx,o+r filename
```
This command grants the owner read, write, and execute permissions, the group read and execute permissions, and others read permission.
#### Numeric Mode
Permissions can also be set using a three-digit octal number, where each digit represents the owner, group, and others.
```bash
chmod 755 filename
```
This command grants read, write, and execute permissions to the owner (7), and read and execute permissions to the group (5) and others (5).
### chown and chgrp Commands
The `chown` command changes the ownership of a file or directory:
```bash
sudo chown newowner filename
```
The `chgrp` command changes the group ownership of a file or directory:
```bash
sudo chgrp newgroup filename
```
## 6. Advanced Permission Management
### Access Control Lists (ACLs)
ACLs provide a more flexible permission mechanism by allowing you to set permissions for specific users or groups.
#### Setting ACLs
To set an ACL, use the `setfacl` command:
```bash
setfacl -m u:username:rwx filename
```
This command grants the user `username` read, write, and execute permissions on `filename`.
#### Viewing ACLs
To view the ACL of a file, use the `getfacl` command:
```bash
getfacl filename
```
### Default ACLs
Default ACLs are applied automatically to new files and directories created within a directory.
#### Setting Default ACLs
```bash
setfacl -d -m u:username:rwx directory
```
This command sets a default ACL for the user `username` on `directory`.
## 7. Best Practices for User and Permission Management
1. **Use Groups Wisely**: Group users with similar permissions to simplify management.
2. **Least Privilege Principle**: Grant the minimum permissions necessary for users to perform their tasks.
3. **Regular Audits**: Periodically review user accounts and permissions to ensure they are still appropriate.
4. **Use Strong Password Policies**: Enforce strong passwords and regular password changes.
5. **Monitor User Activity**: Use logging and monitoring tools to track user activity and detect suspicious behavior.
6. **Implement Two-Factor Authentication (2FA)**: Add an extra layer of security by requiring 2FA for user accounts.
7. **Backup Important Data**: Regularly backup important data and configuration files to prevent data loss.
## 8. Conclusion
User and permission management are crucial aspects of Linux system administration. By understanding and implementing the concepts covered in this article, you can ensure your system is secure and operates efficiently. Regular monitoring, auditing, and adhering to best practices will help you maintain a robust and secure Linux environment.
Below is a summary of the commands and concepts covered in this article, with some additional code snippets for your reference.
### Summary of Commands and Concepts
```bash
# Creating a new user
sudo useradd -m newuser
sudo passwd newuser
# Modifying a user
sudo usermod -l newlogin oldlogin
sudo usermod -d /new/home/directory -m username
# Deleting a user
sudo userdel username
sudo userdel -r username
# Creating a group
sudo groupadd newgroup
# Modifying a group
sudo groupmod -n newgroupname oldgroupname
# Adding a user to a group
sudo usermod -aG groupname username
groups username
# Viewing file permissions
ls -l
# Changing file permissions using symbolic mode
chmod u+rwx,g+rx,o+r filename
# Changing file permissions using numeric mode
chmod 755 filename
# Changing file ownership
sudo chown newowner filename
# Changing group ownership
sudo chgrp newgroup filename
# Setting ACL
setfacl -m u:username:rwx filename
# Viewing ACL
getfacl filename
# Setting default ACL
setfacl -d -m u:username:rwx directory
```
### Additional Tips and Tools
- **User Management Tools**: Tools like `usermod`, `groupmod`, and `usermgmt` can simplify user management tasks.
- **Permission Tools**: Utilities like `setfacl` and `getfacl` are invaluable for managing ACLs.
- **Security Tools**: Consider using tools like `fail2ban` to protect against unauthorized access attempts.
By mastering these tools and concepts, you'll be well-equipped to manage users and permissions in your Linux environment effectively. Whether you're a beginner or an experienced administrator, these skills are fundamental to maintaining a secure and efficient system. Happy administrating! | iaadidev |
1,881,146 | Back to School Games | This is a submission for Frontend Challenge v24.04.17, CSS Art: June. Inspiration My... | 0 | 2024-06-08T07:20:41 | https://dev.to/chinmayeep_58/back-to-school-games-2jnm | frontendchallenge, devchallenge, css | _This is a submission for [Frontend Challenge v24.04.17](https://dev.to/challenges/frontend-2024-05-29), CSS Art: June._
## Inspiration
<!-- What are you highlighting today? -->
My inspiration for building this project is to improve student-teacher bonding and improve the perspective of looking at school after vacation.
## Demo
{% codepen https://codepen.io/Chinmayee-P/pen/XWwaNer %}
<!-- Show us your CSS Art! You can directly embed an editor into this post (see the FAQ section of the challenge page) or you can share an image of your project and share a public link to the code. -->
## Journey
Going back to school after summer break can be both joyful as well a little disappointing. That's where games play a part in making the first day less boring. Breaking from the vacation routine could take a toll on both teacher and student, thus having fun and interactive sessions, and playing these games can help make the first day interesting.
There are instructions given for the games, easy to understand.
The process of building this project helped me gain styling skills, effective usage of the CSS effects, and how combining both would result in a beautiful design. I look forward to creating more complex and interactive designs.
<!-- Tell us about your process, what you learned, anything you are particularly proud of, what you hope to do next, etc. -->
<!-- Team Submissions: Please pick one member to publish the submission and credit teammates by listing their DEV usernames directly in the body of the post. -->
<!-- We encourage you to consider adding a license for your code. -->
<!-- Don't forget to add a cover image to your post (if you want). -->
<!-- Thanks for participating! --> | chinmayeep_58 |
1,881,145 | Alloy Wheels vs. Cast Wheels: Making an Informed Choice | Hc5f12432d7ab4c2a9dcc3f90507b19daA.jpg Introduction: Are you planning to upgrade your car’s wheels... | 0 | 2024-06-08T07:17:46 | https://dev.to/ndjje_dijruu_91a0196341b4/alloy-wheels-vs-cast-wheels-making-an-informed-choice-270p | Hc5f12432d7ab4c2a9dcc3f90507b19daA.jpg
Introduction:
Are you planning to upgrade your car’s wheels but confused between Alloy Wheels and Cast Wheels? Both are great choices, but it’s important to know the advantages, differences, and how to use them. We’ll help you make an choice informed.
Advantages of Alloy Wheels:
Alloy wheels are made up of a blend of metals, such as aluminum, magnesium, and nickel. The advantage that's primary of wheels is they are lightweight, which translates to better gas mileage, reduced wear and tear on the suspension system, and improved handling. Additionally, alloy wheels dissipate heat faster than cast wheels, which is beneficial for high-performance cars.
Innovation in Alloy Wheels:
In recent years, alloy wheels have seen a lot complete of. Technology has allowed for the creation of new alloys provide improved strength and durability over standard aluminum variants. These innovations include new alloys reinforced with carbon fiber or materials ceramic.
Safety Benefits of Alloy Wheels:
One of the most significant advantages of alloy wheels are the safety added provide. They are less prone to cracks and breakage than cast wheels. This is due to their strength superior makes them more resistant to bending and impact damage. Additionally, alloy wheels are often come with a better ventilation design helps to improve brake cooling, therefore reducing the risk of brake failure.
How to Choose and Use Alloy Wheels:
When selecting alloy wheels for your vehicle, you should consider factors such as the wheel size, thickness, and design. Wheels size is should be compatible with tire size for performance and safety. Thickness will depend on the use and weight of your vehicle and design for aesthetics and style. It’s also important to note the maintenance of alloy wheels relatively simple. They require regular cleaning with mild soap and water, and cleaners avoiding abrasive will scratch the surface.
Advantages of Cast Wheels:
Cast wheels are made from a mold single of metal, usually steel or aluminum. They are considered more affordable than alloy wheels and more readily available. The molding process allows for more intricate and designs complex might not be effective or possible with alloy wheels.
Quality and Service of Cast Wheels:
Cast wheels have a tendency to become much a lot extra resilient compared to conventional steel wheels, creating all of them perfect for vehicles as well as SUVs need much larger tons. Among the advantages of cast wheels they have a tendency to become much a lot extra inexpensive. Nevertheless, it is actually necessary to guarantee the high top premium of designate tires prior to buying, because low-grade ones might breather and trigger security problems. It is likewise essential to routinely preserve your cast wheels, turning all of them and maintaining all of them clean.
How to Choose and Use Cast Wheels:
When choosing cast, you ought to think about elements like design, style, as well as compatibility along with your vehicle's value as well as dimension. Maintenance is easy, you just require to always keep all of them examine and cleanse all of them routinely for any type of indications of damages.
Application of Alloy and Cast Wheels:
Each designate as well as alloy tires are actually fantastic choices for updating a wheels vehicle's. Aluminum alloy wheels are actually favored for higher-end as well as efficiency vehicles and have a tendency to become much a lot extra costly. Designate tires appropriate for vehicles, SUVs, and daily cars don't need tires high-performance. Eventually, the choice comes down for your budget plan and preference.
Source: https://www.khrwheels.com/application/alloy-wheels | ndjje_dijruu_91a0196341b4 | |
1,880,463 | Common Performance Bottlenecks in React | React is a powerful library for building user interfaces, but like any technology, it can run into... | 0 | 2024-06-08T07:15:57 | https://dev.to/ak_23/common-performance-bottlenecks-in-react-3cji | react, programming, performance, webdev | React is a powerful library for building user interfaces, but like any technology, it can run into performance bottlenecks. Identifying and resolving these issues can make a significant difference in the efficiency and user experience of your application. Here are some common performance bottlenecks in React and how to address them:
#### 1. **Unnecessary Re-renders**
**Problem:** React components re-render frequently, even when not needed, which can slow down the application.
**Solution:** Use the following strategies to avoid unnecessary re-renders:
- **React.memo:** This higher-order component (HOC) prevents functional components from re-rendering if their props haven't changed.
- **useMemo:** Memoize expensive calculations to prevent them from being recalculated on every render.
- **useCallback:** Memoize callback functions to avoid passing new instances to child components on every render.
```jsx
import React, { memo, useCallback, useMemo } from 'react';
const MyComponent = memo(({ value, onClick }) => {
return <div onClick={onClick}>{value}</div>;
});
const ParentComponent = () => {
const value = useMemo(() => calculateValue(), []);
const handleClick = useCallback(() => {
// handle click
}, []);
return <MyComponent value={value} onClick={handleClick} />;
};
```
#### 2. **Large Component Trees**
**Problem:** Complex and deeply nested component trees can slow down rendering.
**Solution:** Break down large components into smaller, more manageable pieces and use code splitting to load only the necessary parts of the application.
- **Code Splitting:** Use dynamic `import()` to split code into smaller bundles that are loaded on demand.
```jsx
import React, { Suspense } from 'react';
const LazyComponent = React.lazy(() => import('./LazyComponent'));
function App() {
return (
<Suspense fallback={<div>Loading...</div>}>
<LazyComponent />
</Suspense>
);
}
```
#### 3. **Expensive Calculations in Render**
**Problem:** Performing heavy calculations directly in the render method can significantly degrade performance.
**Solution:** Memoize expensive calculations using `useMemo` to prevent them from being recalculated on every render.
```jsx
import React, { useMemo } from 'react';
const MyComponent = ({ items }) => {
const sortedItems = useMemo(() => {
return items.sort((a, b) => a.value - b.value);
}, [items]);
return (
<ul>
{sortedItems.map(item => (
<li key={item.id}>{item.name}</li>
))}
</ul>
);
};
```
[Understanding React.memo: Optimizing Your React Applications](https://dev.to/amit_k_812b560fb293c72152/understanding-reactmemo-optimizing-your-react-applications-436a)
#### 4. **Inefficient List Rendering**
**Problem:** Rendering long lists without optimization can cause significant performance issues.
**Solution:** Use virtualization techniques to render only the visible part of the list, improving performance.
- **React Virtualized or React Window:** These libraries help in rendering large lists efficiently.
```jsx
import { FixedSizeList as List } from 'react-window';
const MyList = ({ items }) => (
<List
height={500}
itemCount={items.length}
itemSize={35}
width={300}
>
{({ index, style }) => (
<div style={style}>
{items[index].name}
</div>
)}
</List>
);
```
#### 5. **State Management Issues**
**Problem:** Overusing the state or passing down state through many layers can slow down the app.
**Solution:** Use context and state management libraries wisely to manage state more efficiently.
- **React Context:** Use context sparingly and only for global state that needs to be accessed by many components.
- **State Management Libraries:** Libraries like Redux, Zustand, or MobX can help manage state more effectively. Stay tuned for a detailed post where I will dive deep into each of these libraries, explaining their use cases, benefits, and how to integrate them into your React projects.
```jsx
import React, { createContext, useContext, useState } from 'react';
const MyContext = createContext();
const MyProvider = ({ children }) => {
const [state, setState] = useState(initialState);
return (
<MyContext.Provider value={{ state, setState }}>
{children}
</MyContext.Provider>
);
};
const MyComponent = () => {
const { state, setState } = useContext(MyContext);
return <div>{state.someValue}</div>;
};
```
### Conclusion
Optimizing React applications involves a combination of strategies to minimize unnecessary renders, manage state effectively, and handle large component trees and lists efficiently. By being mindful of these common bottlenecks and applying the appropriate solutions, you can significantly enhance the performance and user experience of your React applications.
| ak_23 |
1,881,144 | Polling vs. Webhooks: Getting Data in Real-Time | In the world of sharing data between apps and systems, there are two main ways: polling and webhooks.... | 0 | 2024-06-08T07:02:02 | https://dev.to/raksbisht/polling-vs-webhooks-getting-data-in-real-time-543n | polling, webhooks, webdev, tutorial | In the world of sharing data between apps and systems, there are two main ways: polling and webhooks. They both help keep data up to date, but they work in different ways. Let’s look at what they are, how they work, and when to use each.
### Understanding Polling 🔄
**What is Polling?** Polling is like asking someone over and over if they have any news. In the digital world, it means one system keeps asking another for updates.
**How Does it Work?**
1. **Asking for Updates:** The client (like your phone) asks the server (like a website) if there are any updates.
2. **Getting a Response:** The server replies with the updates or says there are none.
3. **Keep Asking:** The client keeps asking at regular intervals, even if there are no updates.
**Pros of Polling:**
* **Easy:** It’s easy to understand and set up, great for beginners.
* **Control:** You decide when to check for updates.
**Cons of Polling:**
* **Uses a Lot of Resources:** It can use up unnecessary resources because it keeps checking, even when there are no updates.
* **Delays:** It takes time to get updates since it checks at regular intervals.
### Unveiling Webhooks 🎣
**What are Webhooks?** Webhooks are like messages that systems send each other when something happens. Instead of asking for updates all the time, the server tells the client when there’s something new.
**How Do They Work?**
1. **Signing Up:** The client tells the server where to send notifications.
2. **Sending Notifications:** When something important happens, the server sends a message to the client right away.
3. **Quick Response:** The client gets the message instantly and can react right away.
**Pros of Webhooks:**
* **Real-Time Updates:** You get updates immediately, reducing delays.
* **Efficient:** It uses fewer resources because it doesn’t keep asking for updates.
* **Event-Driven:** It’s built around events, making the system more responsive.
**Cons of Webhooks:**
* **A Bit Complicated:** It’s a bit more complicated to set up than polling, especially handling errors and security.
* **Security Issues:** Exposing an endpoint for webhooks can raise security concerns.
### Choosing the Right Approach 🤔
**When to Use Polling:**
* **Not Many Updates:** If updates are rare or unpredictable, polling might be better.
* **Simple Stuff:** For simple apps where being quick isn’t as important, polling works fine.
**When to Use Webhooks:**
* **Need Updates Fast:** If you need updates right away, like in messaging apps or live feeds, use webhooks.
* **Built for Events:** If your system works around events, webhooks are the way to go.
**Conclusion:**
Polling and webhooks both help keep systems in sync, but they work differently. Polling is easy and gives you control, while webhooks get you updates right away and use fewer resources. Pick the one that fits your app’s needs best, whether you like the persistent checking of polling or the quick messages of webhooks. They both help keep your apps running smoothly in today’s digital world.
| raksbisht |
1,881,143 | 🚫 8 Signs Programming Might Not Be Your Jam 🚫 | Lack of Interest in Problem-Solving: If you find problem-solving tedious or uninteresting,... | 0 | 2024-06-08T06:59:30 | https://dev.to/learn_with_santosh/8-signs-programming-might-not-be-your-jam-g9m | programming, guide, development | 1. **Lack of Interest in Problem-Solving**: If you find problem-solving tedious or uninteresting, programming might not be the best career path for you. Programming often involves solving complex problems creatively.
2. **Minimal Patience for Debugging**: Debugging is a significant part of programming. If you become easily frustrated or lose interest when faced with debugging challenges, programming might not align with your temperament.
3. **Limited Attention to Detail**: Programming requires a keen eye for detail. Small errors in code can lead to significant issues. If you tend to overlook details or struggle with meticulousness, programming may not be your forte.
4. **Difficulty in Understanding Abstract Concepts**: Programming involves grasping abstract concepts such as algorithms, data structures, and computational logic. If you find it challenging to understand or work with abstract ideas, programming might not come naturally to you.
5. **Struggles with Logical Thinking**: Programming often requires logical thinking and reasoning. If you struggle to think logically or find it difficult to follow logical sequences, you may encounter hurdles in programming tasks.
6. **Resistance to Continuous Learning**: Technology evolves rapidly, and programming languages and tools are constantly evolving. If you're not enthusiastic about continuous learning and adapting to new technologies, programming might not be the right fit for you.
7. **Difficulty in Working Collaboratively**: While programming can be solitary work at times, it often involves collaborating with other team members, sharing code, and providing feedback. If you prefer working alone and struggle with teamwork, programming in a professional setting may not be enjoyable for you.
8. **Limited Creativity in Problem-Solving**: While programming involves logical thinking, it also requires creativity in finding innovative solutions to problems. If you struggle to think creatively or prefer rigid, structured tasks, you may find programming challenging and unfulfilling.
Remember, these signs don't necessarily mean you can't become a programmer if you're passionate and willing to work hard. However, they may indicate areas where you'll need to focus more attention and effort to succeed in the field. It's essential to reflect on your strengths, interests, and goals when considering a career in programming. | learn_with_santosh |
1,881,142 | Alloy Wheels: The Signature of Style for Your Vehicle | Hc51bcee349de4d55888ea7c11c1b33ecz.png Alloy Wheels: The Cool Choice for the Journey Alloy Wheels... | 0 | 2024-06-08T06:55:54 | https://dev.to/amanda_andersongh_189c006/alloy-wheels-the-signature-of-style-for-your-vehicle-hmm | design | Hc51bcee349de4d55888ea7c11c1b33ecz.png
Alloy Wheels: The Cool Choice for the Journey
Alloy Wheels had been a range that has been automobile which are popular for a time that is long. Then alloy tires is a arrange which is great we shall has an improved look at the advantages, innovation, protection, use, plus solutions of alloy wheels if you're looking for the substitute for offer your automobile an upgraded styles.
Great things about Alloy Wheels
One of many main top features of alloy wheels could be the lighter construction. This means there clearly was less fat into the vehicle, which equals effectiveness which is most beneficial plus fuel effectiveness. Another advantage might be the design which was sleek. Alloy Wheels are notable for their modern plus look that has been elegant which may complement any motor car model. These are typically extremely durable, what this means is they could withstand course that has been tough minus compromising their integrity.
Innovation in Alloy Wheels
The manufacturing process of alloy wheels try refined to excellence plus advancements in technology. Now, alloys wheels is produced by using a mixture of aluminum to thee car rims on car and also other metals that can be heated plus molded to help make the wheel. This may cause them to merely become not lighter but additionally incredibly more powerful. The manufacturing procedure in addition has lead in improved finishes about the tires plus opposition which was corrosion that is increasing.
Protection in Alloy Wheels
Alloy Wheels protection that is incorporate simply because they decrease the fat that was unsprung of automobile. This weight will be the potent force which are effective the car’s suspension system system must work against to hold the wheel in contact with the path. Having a lighter wheel, traction plus hold are increasing, hence increasing path control furthermore reducing usage about the tires. The tires are most resistant and also to bending, which may result less tires that are flat.
Use of Alloy Wheels
Alloy Wheels could you need to be used for around almost any vehicle, from cars to cars to SUVs. They truly are introduced in a variety of sizes, kinds, plus completes to suit your certain taste. The Alloy Wheels are made to interest the specific needs for the automobile model, ensuring compatibility due to the car's initial gear. Before purchasing alloy wheels, factors to consider they've become the fit that is correct your vehicle as vehicle.
Utilizing Alloy Wheels
To use Alloy Wheels for the car rims on car, you have to be yes they have been right for your car or truck. You should install bolts being appropriate secure the tires constantly in place. Some alloy tires was accompanied by tire force sensors that may needs to be recalibrated after installation. You need to search for professional assistance if you are uncomfortable plus installation. | amanda_andersongh_189c006 |
1,881,141 | Da Nang Polytechnic | A post by Da Nang Polytechnic | 0 | 2024-06-08T06:53:02 | https://dev.to/duteduvn/da-nang-polytechnic-2l4i | duteduvn | ||
1,881,140 | The Most Stylish Instagram Reels of 2024 | Instagram Reels have taken the social media world by storm, offering a dynamic platform for... | 0 | 2024-06-08T06:52:08 | https://dev.to/socialpro/the-most-stylish-instagram-reels-of-2024-55i9 | news | Instagram Reels have taken the social media world by storm, offering a dynamic platform for creativity and self-expression. In 2024, the trend continues to evolve, with creators pushing the boundaries of style and innovation. From fashion influencers to everyday users, stylish Reels are captivating audiences and setting new standards for visual content. Here’s a look at some of the most stylish Instagram Reels of 2024.
## 1. The Best Outfit Transitions
Fashion transitions have become a hallmark of stylish Instagram Reels. In 2024, creators are taking outfit changes to the next level with seamless and creative transitions. Using clever camera tricks and editing techniques, these Reels feature influencers and fashion enthusiasts transforming their looks in the blink of an eye. The key to a standout outfit transition is smoothness and creativity, often involving props, background changes, and synchronized movements. These Reels not only showcase personal style but also demonstrate impressive editing skills, making them a favorite among fashion lovers and aspiring influencers.
## 2. Mastering the Art of Visual Storytelling
Aesthetic edits are all about creating a visually pleasing and cohesive Reel that tells a story. In 2024, the most stylish aesthetic Reels are characterized by their use of color palettes, lighting, and composition. Creators are meticulously planning each frame to ensure that their content is not just a collection of clips but a harmonious visual experience. Popular themes include vintage vibes, minimalism, and nature-inspired aesthetics. These Reels often incorporate elements like smooth transitions, matching outfits to backgrounds, and using overlays and filters that enhance the overall mood. The result is a Reel that is as much a work of art as it is a video.
### 3. Transformations and Tutorials
Beauty Reels have always been popular on Instagram, but in 2024, they are reaching new heights of style and sophistication. The most stylish beauty Reels feature transformations and tutorials that are both informative and visually stunning. Makeup artists and beauty influencers are using high-definition cameras, professional lighting, and advanced editing software to create flawless content. These Reels often start with a bare face and progress through each step of a makeup routine, showcasing the products and techniques used. The transformation from start to finish is not only captivating but also inspiring, as viewers can learn new skills while enjoying the artistry of the process.
## 4. Dance and Movement: Fluidity and Fashion
Dance Reels are a staple on Instagram, and in 2024, they continue to captivate audiences with their fluidity and fashion-forward approach. Stylish dance Reels combine impressive choreography with trendy outfits and striking locations. Influencers are collaborating with professional dancers and choreographers to create content that is not only entertaining but also visually stunning. These Reels often feature synchronized movements, seamless transitions, and dynamic camera angles that keep viewers engaged from start to finish. The combination of dance and fashion makes these Reels a feast for the eyes, showcasing not just the talent of the dancers but also the creativity and style of the creators.
## 5. Travel Diaries: Exploring the World in Style
Travel Reels have always been a popular way to share adventures, but in 2024, they are more stylish and cinematic than ever. Creators are using advanced filming techniques, drones, and professional editing software to produce travel Reels that look like mini-movies. These Reels capture stunning landscapes, vibrant cityscapes, and cultural experiences in a way that is both informative and visually breathtaking. Stylish travel Reels often include smooth transitions, time-lapses, and carefully curated soundtracks that enhance the storytelling. They offer a glimpse into the creator’s journey, inspiring viewers to explore the world while appreciating the beauty of each destination.
## 6. Culinary Creations: Stylish Cooking Reels
Food Reels are a feast for the eyes, and in 2024, the most stylish cooking Reels are taking culinary creativity to new heights. Chefs and food enthusiasts are using high-quality cameras and artistic plating techniques to create visually stunning content. These Reels often feature step-by-step recipes, cooking hacks, and food styling tips that make even the simplest dishes look gourmet. The key to a stylish cooking Reel is in the details: vibrant colors, close-up shots, and smooth transitions that make the process look effortless. These Reels not only showcase delicious food but also the artistry and passion behind each creation.
## 7. Fitness and Wellness: Stylish Workout Reels
Fitness and wellness Reels have become increasingly popular, and in 2024, they are more stylish than ever. Influencers and trainers are creating Reels that combine effective workouts with stylish athleisure wear and visually appealing settings. These Reels often feature outdoor workouts, home gym setups, and unique fitness challenges that keep viewers motivated and engaged. The use of slow-motion, time-lapses, and dynamic camera angles adds a professional touch, making these Reels both inspiring and visually captivating. Stylish fitness Reels not only promote a healthy lifestyle but also encourage viewers to invest in their well-being with a sense of style.
## 8. Artistic Creations: Showcasing Talent and Creativity
Artistic Reels are a platform for creators to showcase their talents and express their creativity. In 2024, the most stylish artistic Reels feature a variety of mediums, from painting and drawing to sculpture and digital art. Creators are using time-lapses, close-ups, and creative editing techniques to highlight the process and final product. These Reels often include behind-the-scenes glimpses, allowing viewers to see the effort and passion that goes into each piece. The combination of artistic skill and stylish presentation makes these Reels a source of inspiration and admiration for art lovers and aspiring artists alike.
## 9. Pet Reels: Stylish and Adorable
Pet Reels are always a hit on Instagram, and in 2024, they are becoming more stylish and adorable than ever. Pet owners are showcasing their furry friends in creative and fashionable ways, using props, outfits, and themed settings to create engaging content. These Reels often feature pets performing tricks, playing with toys, or simply looking cute in various scenarios. The use of slow-motion, close-ups, and playful music adds to the charm, making these Reels a delight to watch. Stylish pet Reels not only highlight the bond between pets and their owners but also provide a dose of joy and entertainment to viewers.
## 10. Tech and Gadgets: Showcasing Innovation with Style
Tech and gadget Reels are a popular way to share the latest innovations, and in 2024, they are more stylish than ever. Influencers and tech enthusiasts are using high-quality cameras, creative lighting, and professional editing to showcase products in a visually appealing way. These Reels often include unboxings, reviews, and demonstrations that highlight the features and benefits of each gadget. The use of close-ups, slow-motion, and dynamic angles makes these Reels engaging and informative, helping viewers make informed decisions about the latest tech trends. Stylish tech Reels not only showcase the innovation but also the excitement and potential of new gadgets.
## 11. Home Decor and DIY: Stylish Transformations
Home decor and DIY Reels are inspiring viewers to transform their spaces with style and creativity. In 2024, the most stylish home decor Reels feature before-and-after transformations, step-by-step tutorials, and creative hacks that make decorating fun and accessible. Creators are using high-quality filming equipment, professional lighting, and creative editing to showcase their projects in the best light. These Reels often include tips on color schemes, furniture arrangement, and decor trends that help viewers achieve a stylish and cohesive look. The combination of practical advice and stylish presentation makes these Reels a valuable resource for anyone looking to update their home.
## 1. Conclusion
[Instagram Reels views](https://socialpro.uk/buy-instagram-reels-views-uk) in 2024 are pushing the boundaries of creativity and style, offering a platform for creators to showcase their talents and connect with audiences in new and exciting ways. From fashion and beauty to travel and tech, the most stylish Reels are characterized by their attention to detail, innovative techniques, and artistic presentation. As Reels continue to evolve, they offer endless possibilities for self-expression and inspiration, making them a powerful tool for anyone looking to make their mark on social media. Whether you’re a creator or a viewer, these stylish Reels are sure to captivate and inspire, setting the stage for even more creative content in the future.
| socialpro |
1,881,138 | React haqida | React haqida gaplashamiz React o'zi nima? React bu javascript(dasturlash tilining)... | 0 | 2024-06-08T06:45:50 | https://dev.to/ozodboyeva/reactjs-d0a | react, learning, reacthaqida | ## **React haqida gaplashamiz**
- React o'zi nima?
React bu javascript(dasturlash tilining) kutubxonasi hisoblanadi.Ho'p endi react kutubxonaning xususiyatlarini ko'rib chiqamiz.Birinchi tushunchalarga to'xtalamiz.
- Single Page Aplication => SPA (Ma'nosi SPA tushunchasida bitta html file bo'ladi)
- Multi Page Aplication => MPA (Bir nechta html filedan iborat bo'ladi)
- Ustuvorlik xususiyatlarini o'rganib chiqamiz.
1. SEO => SEO (Search Engine Optimization) nima — bu web-saytlarni qidiruv tizimlari natijalari sahifalarida (SERP) yuqori o'rinlarni egallash uchun optimallashtirish jarayoni. SEO veb-saytning ko'rinishini yaxshilash va organik (to'lanmagan) trafikni oshirishga qaratilgan. SEOning asosiy qismlari quyidagilardan iborat:
Kalit so'zlarni tadqiq qilish (Keyword Research): Maqsadli auditoriya tomonidan qidiruv tizimlarida foydalaniladigan kalit so'zlarni aniqlash.
**On-page SEO:** Web-saytning ichki elementlarini optimallashtirish, bu quyidagilarni o'z ichiga oladi:
**Sarlavha teglari**: Har bir sahifa uchun tegishli va aniq sarlavhalar yaratish.
Meta tavsiflar: Har bir sahifa uchun qisqa va qiziqarli meta tavsiflar yozish.
URL tuzilishi: Oddiy va kalit so'zlarni o'z ichiga olgan URL-larni yaratish.
**Kontent**: Yuqori sifatli va kalit so'zlarga boy kontent yozish.
Ichki havolalar: Sayt ichidagi boshqa sahifalarga havolalar qo'shish.
Off-page SEO: Saytdan tashqaridagi omillarni optimallashtirish, bu quyidagilarni o'z ichiga oladi:
**Backlinks**: Boshqa ishonchli saytlardan havolalar olish.
Ijtimoiy signallar: Ijtimoiy tarmoqlardagi faollik va almashinuvlar.
Texnik SEO: Saytning texnik jihatlarini optimallashtirish, bu quyidagilarni o'z ichiga oladi:
**Sayt tezligi**(Speed): Sahifalarning yuklanish vaqtini qisqartirish.
Mobil moslashuvchanlik: Saytning mobil qurilmalarda yaxshi ko'rinishini ta'minlash.
**Sayt xaritasi** (Sitemap): Qidiruv tizimlariga saytning tuzilishini tushunishga yordam beruvchi sayt xaritasini yaratish.
Robots.txt: Qidiruv tizimlariga qaysi sahifalarni indekslash kerakligini aytadigan faylni sozlash.
Kontent Marketing: Foydali, qiziqarli va tegishli kontent yaratish va tarqatish orqali organik trafikni jalb qilish.
Analitika va kuzatuv: Web-saytning ishlashini o'lchash va optimallashtirish strategiyalarini takomillashtirish uchun analitik vositalardan foydalanish, masalan Google Analytics.
SEO - bu doimiy o'zgarib turadigan soha bo'lib, qidiruv tizimlarining algoritmlari va qoidalari muntazam ravishda yangilanib turadi, shuning uchun SEO strategiyalari ham mos ravishda yangilanib turishi kerak.
2.**Initial load** => (dastlabki yuklash) web-sayt yoki web-ilovani foydalanuvchi tomonidan birinchi marta ochilganda sahifaning yuklanish jarayonini anglatadi. Bu jarayonda browser sahifaning barcha zarur elementlarini, jumladan HTML, CSS, JavaScript fayllarini, rasmlar, shriftlar va boshqa resurslarni yuklaydi.
Dastlabki yuklash vaqti foydalanuvchi tajribasi uchun juda muhimdir, chunki uzoq yuklash vaqti foydalanuvchilarni saytdan chiqib ketishga majbur qilishi mumkin.
3.Web-sayt yoki web-ilovaning "**speed**" (tezligi) uning turli jihatlarida o'lchanadi va foydalanuvchi tajribasi uchun muhim hisoblanadi. Sayt tezligi, odatda, sahifa yuklanish vaqti, foydalanuvchi bilan o'zaro ta'sir qilishi va umumiy ishlash qobiliyatiga ishora qiladi.
4.**Server** — bu kompyuter yoki dasturiy ta'minot tizimi bo'lib, u tarmoq orqali boshqa kompyuterlarga (mijozlarga) xizmat ko'rsatadi. Serverlar turli xizmatlar va resurslarni taqdim etadi, masalan, veb-sahifalar, elektron pochta, ma'lumotlar bazalari va fayllar. Serverlar odatda kuchli apparat va dasturiy ta'minotdan iborat bo'lib, tarmoqqa ulanishda yuqori ishonchlilik va unumdorlikni ta'minlaydi.
**Server turlari:**
Web server: Veb-sahifalarni yetkazib berish uchun mas'ul bo'lgan server. Mashhur web serverlar Apache, Nginx va Microsoft Internet Information Services (IIS) kiradi.
Database server: Ma'lumotlar bazasini boshqarish tizimlarini (DBMS) ishga tushiradi va ma'lumotlarni saqlaydi, boshqaradi va ularga kirish imkoniyatini ta'minlaydi. Misollar: MySQL, PostgreSQL, Microsoft SQL Server, Oracle Database.
File server: Foydalanuvchilar va tizimlar orasida fayllarni saqlash va almashish imkoniyatini beradi.
Mail server: Elektron pochta xabarlarini qabul qilish, yuborish va saqlashni boshqaradi. Misollar: Microsoft Exchange Server, Postfix, Sendmail.
Application server: Dasturiy ta'minot dasturlarini ishga tushiradi va ularga mijozlar tomonidan kirish imkonini beradi. Misollar: Apache Tomcat, GlassFish.
DNS server: Domen nomlarini IP manzillarga tarjima qiladi va tarmoqda kerakli qurilmalarga yo'naltiradi. Misollar: BIND, Microsoft DNS Server.
Proxy server: Mijozlar va serverlar orasida vositachilik qiladi, xavfsizlik, kontent filtratsiyasi va keshlash funksiyalarini bajaradi.
Virtual server: Bir jismoniy serverda bir nechta virtual serverlarni ishga tushirish imkonini beradigan texnologiya. Bu server virtualizatsiyasi orqali amalga oshiriladi va misol sifatida VMware, Hyper-V, KVM kiradi.
Serverlarning asosiy vazifalari:
Xizmatlarni taqdim etish: Mijozlarga veb-sahifalar, ma'lumotlar, elektron pochta, fayllar va boshqa xizmatlarni taqdim etish.
Resurslarni boshqarish: Ma'lumotlar bazalari, saqlash tizimlari, hisoblash quvvatlari va tarmoq resurslarini boshqarish.
Xavfsizlikni ta'minlash: Ma'lumotlarni himoya qilish, foydalanuvchi autentifikatsiyasi va ma'lumotlar shifrlashni ta'minlash.
Trafikni boshqarish: Tarmoq trafigini boshqarish va optimallashtirish.
Zaxiralash va tiklash: Ma'lumotlarni zaxiralash va avariyalardan keyin tiklash imkoniyatini ta'minlash.
Serverlar internet va lokal tarmoqlarda asosiy infratuzilma elementlari hisoblanadi. Ular turli xizmatlarni ko'rsatish va ma'lumotlarni boshqarish orqali biznes, ta'lim, hukumat va boshqa ko'plab sohalarda keng qo'llaniladi.
| | SPA | MPA |
| --- | --- | --- |
| SEO | - | + |
| Initial Load | - | + |
| Speed | + | - |
| Server | + | - |
Bu jadval orqali ustunlik tomonlarini ko'rdingiz.
<u>
---
**Real DOM vs Virtual DOM**
**Real DOM**
1.Hujjatning har bir elementi darxt sifatida(nodes) sifatida ifodalasak. Daraxtning yuqori darajasi (root) odatda <html> tegi bo'ladi, va barcha boshqa elementlar shu tegning ostida joylashadi.
2.Elementlarni manipulyatsiya qilish: JavaScript yordamida Real DOMdagi elementlarni o'qish, o'zgartirish, qo'shish va olib tashlash mumkin. Bu getElementById, querySelector, appendChild, removeChild, setAttribute kabi DOM API funksiyalari yordamida amalga oshiriladi.
3.Performans muammolari: Real DOM bilan ishlashda har bir o'zgarish to'g'ridan-to'g'ri brauzerda qayta chizilishiga olib keladi. Bu katta va murakkab hujjatlar uchun sekin ishlashiga sabab bo'lishi mumkin, chunki har bir kichik o'zgarish ham butun hujjatni qayta ko'rib chiqishni talab qiladi.
**Virtual Dom**
Virtual DOM (VDOM) — bu JavaScript-da yaratilgan va ishlaydigan yengil vaznli ko'chirish (copy) bo'lib, u Real DOM (Document Object Model) ning samaradorligini oshirish uchun ishlatiladi. Virtual DOM, asosan, React kabi zamonaviy JavaScript kutubxonalari va ramkalarida (frameworks) ishlatiladi. Bu texnologiya dastur tezligini oshirish va foydalanuvchi tajribasini yaxshilash maqsadida qo'llaniladi.
1.Virtual DOM yaratish: Dastlab, Virtual DOM hujjatning dastlabki ko'rinishini hosil qiladi. Bu dastlabki renderlash paytida sodir bo'ladi.
2.O'zgarishlarni qayd etish: Hujjatda biror o'zgarish bo'lganda, avval bu o'zgarish Virtual DOMda amalga oshiriladi. Real DOMga darhol tegilmaydi.
3.Dif algoriti: Virtual DOMdagi yangi holat eski holat bilan solishtiriladi. Bu solishtirish jarayonida faqatgina o'zgarishlar qayd etiladi. Bu jarayon dif algoriti deb ataladi.
4..Patch (Yamash): Dif algoritmi yordamida qayd etilgan o'zgarishlar minimal to'plami Real DOMga qo'llanadi. Bu Real DOMni qayta chizish (re-rendering) jarayonini sezilarli darajada optimallashtiradi.
Real Dom va Virtual DOM ning asosiy farqari:
Real DOM va Virtual DOM o'rtasidagi asosiy farq ularning qanday ishlashida va samaradorlikda. Real DOMda har qanday o'zgarish to'g'ridan-to'g'ri amalga oshiriladi, bu esa katta va murakkab hujjatlar uchun sekin ishlashga olib keladi. Virtual DOM esa o'zgarishlarni avval Virtual DOMda amalga oshiradi va faqat minimal o'zgarishlarni Real DOMga qo'llab, samaradorlikni oshiradi. Virtual DOMning bu yondashuvi katta va dinamik veb-ilovalar uchun juda qulay va samarali hisoblanadi.
</u>
Endi biz library va frameworklar haiqda gaplashamiz:
Library (kutubxona) va framework nima deydigan bo'lsak.Ularning dasturchiga qanday imkoniyat berishiga va dastur tuzilmasiga qanday ta'sir ko'rsatishi jihatdan ajralib turadi.
- React - library
- Next - framework
- Angular - framework
- Vue - framework
- Nuxt - framework
- Astra - library
**Kutubxona**
_Foydalanish:_ (Usage) Kutubxona funksiyalar, sinflar yoki modullar to'plamini o'z ichiga oladi. Siz kutubxonani kerak bo'lganda chaqirasiz va undan foydalanasiz. Dastur oqimini siz boshqarasiz.
_Boshqaruv:_ (Control) Dastur oqimini siz boshqarasiz. Kutubxona vositalar va funksiyalarni taqdim etadi, lekin umumiy arxitektura yoki operatsiyalar ketma-ketligini belgilamaydi.
_Moslashuvchanlik:_ (Flexibility) Kutubxonalar odatda ko'proq moslashuvchan bo'lib, turli kontekstlarda ishlatilishi mumkin va dasturingizga aniq bir tuzilmani yuklamaydi.
_Misol:_ (Example) JavaScript'da jQuery kutubxonasi DOM bilan ishlash, hodisalarni boshqarish va AJAX so'rovlarini bajarish uchun funksiyalarni taqdim etadi. Siz jQuery funksiyalarini o'zingizning dastur mantiqingizda kerak bo'lganda chaqirasiz.
**Freymvork**
_Foydalanish:_ (Usage) Freymvork dasturlarni yaratish uchun tuzilgan va oldindan belgilangan usulni taqdim etadi. U odatda kutubxonalar, vositalar va eng yaxshi amaliyotlar to'plamini o'z ichiga oladi.
_Boshqaruv:_ (Control) Freymvork dastur oqimini belgilaydi. U o'z dizayni va hayotiy tsiklga asoslangan holda sizning kodingizni ma'lum nuqtalarda chaqiradi.
_Tuzilish:_ (Structure) Freymvorklar dasturingizga aniq tuzilma va dizayn naqshlarini yuklaydi. Ular ko'pincha muayyan konventsiyalarni bajarishingizni va kodlaringizni integratsiyalash uchun aniq nuqtalarni taqdim etishni talab qiladi.
_Misol:_ (Example) JavaScript'da Angular freymvorki veb-ilovalarni yaratish uchun to'liq tuzilmani taqdim etadi, shu jumladan modullar, komponentlar, xizmatlar va yo'naltirish. Sizning kodingiz ushbu tuzilishga mos keladi va Angular umumiy dastur oqimini boshqaradi.
**Asosiy Farqlar**
Kutubxona: Siz kutubxonani chaqirasiz.
Freymvork: Freymvork sizning kodingizni chaqiradi (Boshqaruvning Inversiyasi).
Kutubxona: Dasturingiz oqimini siz boshqarasiz.
Freymvork: Freymvork dastur oqimini boshqaradi va siz aniq tafsilotlarni kiritasiz.
Kutubxona: Odatda tor va aniq funksiyalar to'plamini taqdim etadi (masalan, loglash kutubxonasi, matematik kutubxona).
Freymvork: Dastur ehtiyojlarini qamrab olish uchun keng va integratsiyalangan funksiyalar to'plamini taqdim etadi (masalan, veb-ilova freymvorki).
**Xulosa** qilib aytganda, kutubxonalar qayta foydalanish mumkin bo'lgan kod qismlarini taqdim etadi, siz ularni kerak bo'lganda loyihangizga qo'shasiz, freymvorklar esa loyihangiz arxitekturasi va oqimini boshqarishga yordam beradi, dasturingizga tuzilgan yondashuvni taklif qiladi.
Endi bu tushunchalarni tushungandan keyin **React** haqida gaplashamiz.
**- React bu Javascript kutubxonasi**
**- React SPA technalogiyasi**
**- React Virtual Dom asosida ishlaydi**
Endi Reactda JSX degan tushuncha bor.JSX format bu Bitta div ichida html taglari joylashuviga aytiladi.Bunda alohida div kodlari bo'lmaydi!
Jsx Format.
Jsx formatga to'g'ri kelmaydi!
Ho'p keyingi tushuncha bu Components.Componenta mustaqil hech kim bilan ishi yo'q.O'zi boshqa kodlar bilan umuman ishi yo'q bo'lgan,qayta-qayta foydalana oladigan kodlar majmuasi desak bo'ladi.
Componentalarni ishlatishda 3 ta muhim qoidasi bor.
1-Katta harf bilan yozilishi kerak
2-Componentalar chaqirilganda tag kabi chaqiriladi
3-Componentalar jsx format qaytaradi
Misol ko'rishingiz mumkin.
Reactda 2 xil Components mavjud
- Class (kam ishlatiladi)
- Function
Bular haqida keyingi mavzularda gaplashamiz.
O'ylaymanki yetarli tushunchalarga ega bo'ldingiz hozirgacham.Keyingi mavzulargacha...
| ozodboyeva |
1,881,137 | Why Operational Plans Fail - The Perils of Groupthink and Assumption | I was on a business trip to Vietnam last week, and I had a reflection while visiting my client. In... | 0 | 2024-06-08T06:44:10 | https://victorleungtw.com/2024/06/08/groupthink/ | leadership, strategy, planning, innovation | I was on a business trip to Vietnam last week, and I had a reflection while visiting my client. In any organization, strategic planning is crucial for success. Imagine a scenario where a leader gathers key personnel and top planners to draft an operational plan for the upcoming year. These individuals share a common environment, similar training, and mutual experiences within a hierarchical structure. As they convene, the process appears seamless: decisions align with what they believe the leader wants, what senior personnel suggest, and what everyone collectively “knows” about the organization and its operational landscape. The plan is drafted, approved, and implemented. Yet, it fails.
## Why Plans Fail
### Misunderstanding Leadership Intentions
One critical reason for the failure could be a fundamental misunderstanding of the leader’s intentions. Even though the group aims to please and align with the leader’s vision, their interpretation might be flawed. Miscommunication or lack of clarity from the leader can lead to decisions that deviate from the intended strategy.
### Reliance on Assumptions
Another pitfall is the reliance on “what everyone knows” about the organization and its environment. These assumptions might be outdated or incorrect. When decisions are based on unverified beliefs, the plan is built on a shaky foundation.
### Inertia and Resistance to Change
Organizations often fall into the trap of “doing things the way they’ve always been done.” This inertia prevents the exploration of alternative approaches and stifles innovation. By not challenging the status quo, organizations miss opportunities to improve and adapt to new challenges.
### Ignoring Complex and Ambiguous Issues
Complex and ambiguous issues are often sidelined during planning sessions. These topics are perceived as too difficult to address, leading to gaps in the plan. Ignoring these critical areas can have significant repercussions when the plan encounters real-world scenarios.
### Fear of Contradicting Senior Personnel
Junior team members may recognize potential flaws or have innovative ideas but fear contradicting senior personnel or subject matter experts. This fear stifles open dialogue and prevents valuable insights from surfacing.
### External Factors
External factors, such as the actions of competitors or unforeseen adversarial actions, can derail even the best-laid plans. These factors are often unpredictable and require a level of flexibility and adaptability that rigid plans cannot accommodate.
## Human Behavior and Group Dynamics
### Patterns of Behavior
Humans develop patterns of behavior to achieve goals with minimal effort. We learn to cooperate and agree with others to gain acceptance and avoid conflict. While these behaviors can be beneficial, they can also lead to groupthink, where dissenting opinions are suppressed, and critical thinking is bypassed.
### Cognitive Shortcuts
To save time and energy, we use cognitive shortcuts, applying familiar solutions to new problems, even when they don’t fit perfectly. This can lead to oversights and the application of inappropriate strategies.
### The Influence of Extroverts
In group settings, extroverts often dominate discussions, while introverts, despite having valuable ideas, may remain silent. This dynamic can result in a narrow range of ideas and solutions being considered.
## Overcoming These Challenges
### Foster Open Communication
Encouraging open communication and creating a safe environment for all team members to voice their opinions is crucial. Leaders should actively seek input from junior members and introverts, ensuring diverse perspectives are considered.
### Challenge Assumptions
Regularly questioning and challenging assumptions helps prevent reliance on outdated or incorrect information. This practice encourages critical thinking and keeps the planning process grounded in reality.
### Embrace Change and Innovation
Organizations should cultivate a culture that embraces change and innovation. Encouraging experimentation and considering alternative approaches can lead to more robust and adaptable plans.
### Address Complex Issues
Rather than ignoring complex and ambiguous issues, teams should tackle them head-on. Breaking down these challenges into manageable parts and addressing them systematically can prevent gaps in the plan.
### Monitor External Factors
Maintaining awareness of external factors and being prepared to adapt plans as needed can help mitigate the impact of unforeseen events. Flexibility and resilience are key components of successful operational planning.
In conclusion, while the planning process may appear smooth and collaborative, underlying issues such as misunderstanding leadership intentions, reliance on assumptions, resistance to change, and group dynamics can lead to failure. By fostering open communication, challenging assumptions, embracing innovation, addressing complex issues, and remaining adaptable, organizations can increase the odds of success and develop robust operational plans.
| victorleungtw |
1,863,886 | TXP Golf Carts | TXP Golf Carts Addrress: 425 S Seven Pts Dr, Seven Points, TX 75143 Phone: (903) 432-0042 Email:... | 0 | 2024-05-24T10:59:40 | https://dev.to/txpgolfcarts/txp-golf-carts-1bjo | golf, cart, golfcarttxp | **TXP Golf Carts
Addrress: 425 S Seven Pts Dr, Seven Points, TX 75143
Phone: (903) 432-0042
Email: adrienne@txpgolfcarts.com
Website: https://txpgolfcarts.com/
GMB Profile: https://www.google.com/maps?cid=13648812504572975343**
TXP Golf Carts is your premier destination for high-quality golf carts in Seven Points, TX. Our company is conveniently located at 425 S Seven Pts Dr, ensuring easy access for golf enthusiasts in the area. With a commitment to excellence, we provide a wide range of golf carts that cater to various needs and preferences.
At TXP Golf Carts, we prioritize customer satisfaction, offering not only top-notch products but also exceptional service. Whether you're a seasoned golfer looking to upgrade your cart or a first-time buyer exploring options, our knowledgeable and friendly staff is ready to assist you.
Our inventory features a diverse selection of golf carts, including electric and gas-powered models, designed to enhance your golfing experience. We understand that golf carts are more than just a mode of transportation on the course; they contribute to the overall enjoyment of your game. That's why we carefully curate our collection to ensure reliability, performance, and style.
In addition to sales, TXP Golf Carts provides reliable maintenance and repair services to keep your golf cart in optimal condition. Our skilled technicians have the expertise to handle routine maintenance, repairs, and upgrades, ensuring that your investment lasts for years to come.
Convenience is key, and our location in Seven Points makes it easy for customers to visit, inquire, and explore our offerings. Feel free to drop by or give us a call at +19034320042 to discuss your golf cart needs. At TXP Golf Carts, we're dedicated to elevating your golfing experience through quality products and exceptional service.
**Working Hours:
**
Tuesday-Saturday:10:00 AM- 6:00 PM
Keywords: TXP Golf Carts, Golf Carts Seven Points TX | txpgolfcarts |
1,881,134 | Relational Databases: PostgreSQL Vs. MariaDB Vs. MySQL Vs. SQLite | Relational databases first appeared in the 1970s—that was more than half a century ago! They have... | 0 | 2024-06-08T06:37:54 | https://dev.to/strapi/relational-databases-postgresql-vs-mariadb-vs-mysql-vs-sqlite-5dn7 | beginners, database, coding, sql | Relational databases first appeared in the [1970s](https://en.wikipedia.org/wiki/Relational_database)—that was more than half a century ago! They have stood what one would call the “test of time” and remained the go-to persistence solution for software applications. Other database technologies like NoSQL have challenged this dominance of RDBMS, but their sheer versatility has kept them at the top.
In a landscape filled with open-source and commercial relational databases, this article focuses on the four most prominent open-source databases - [PostgreSQL](https://www.postgresql.org/), [MySQL](https://www.mysql.com/), [MariaDB](https://mariadb.org/), and [SQLite](https://sqlite.org/). These DBMS are the most preferred databases per the [SO’s 2023 survey](https://survey.stackoverflow.co/2023/#section-most-popular-technologies-databases).
When developers face many database options, it can feel like drowning in a sea of choices. But the real danger lies in the aftermath of a poor database selection. It's not just a ticking time bomb; it's a full-blown explosion in the advanced stages of application development, turning a switch to a more suitable database technology into a living nightmare.
This article aims to empower developers with enough knowledge to make informed decisions about various popular relational databases.
## Core Feature Comparison: PostgreSQL Vs. MariaDB Vs. MySQL Vs. SQLite
The core features of a database often emerge as the pivotal factor in your choice of database technology. Whether it's the architecture or the feature set implemented by a database, these properties can significantly sway your decision. Given the importance of these core features, we begin our discussion with an extensive comparison of these across the four databases.
### 1. Database Architecture
While all of the databases we are comparing are relational databases, there are some significant architectural differences among them. Let's explore these differences.
* **PostgreSQL:** PostgreSQL's unique architecture as an Object-Relational DBMS (ORDBMS) is a game-changer. It not only caters to the needs of a relational database but also extends its support to classes, objects, and inheritance. This powerful capability of PostgreSQL effectively bridges the gap between relational databases and object-oriented databases, opening up a world of possibilities for a wide range of applications.
**Example:** This object-oriented perspective of PostgreSQL is evident in several places. Every table in PostgreSQL has a corresponding data type created, and each row of a table can be seen as an instance of that data type.
```bash
CREATE TYPE car_type AS (id integer, maker text, model text);
CREATE TABLE car OF car_type;
```
You can also create tables inherited from other tables.
```bash
CREATE TABLE ev_car (battery_capacity integer) INHERITS (car);
```
Additionally, PostgreSQL is fully ACID-compliant in all of its configurations. This is a desired guarantee for many enterprise-grade applications! Moreover, it is the [closest](https://www.postgresql.org/docs/current/features.html) database to complete conformance with the SQL standards.
PostgreSQL's implementation of MVCC (Multi-Version Concurrency Control) is a testament to its efficiency. Unlike other databases that rely on locks or undo logs, PostgreSQL maintains versioned copies of DB objects. This approach is not just efficient, it's highly efficient, particularly when dealing with a large number of concurrent users and long running transactions. This reassures you of its performance in handling your database's needs.
* **MySQL:** This is a pure relational database with an architecture optimized for read-heavy workloads. It uses a single process for multiple users, resulting in better read performance overall compared to other databases!
MySQL offers a flexible architecture, supporting around 15 DB engines in addition to its default [InnoDB](https://dev.mysql.com/doc/refman/8.3/en/innodb-introduction.html) engine. MySQL allows you to specify database engines at the table level using the TYPE parameter.
**Example**: Using **ISAM engine** for a table in MySQL.
```bash
CREATE TABLE car (
id INT NOT NULL AUTO_INCREMENT,
PRIMARY KEY (id),
maker TINYTEXT,
model TINYTEXT
) TYPE=ISAM
```
* **MariaDB:** This is a fork of MySQL and thus shares many architectural features with MySQL. The project was initiated by MySQL's developers after its acquisition by Oracle, but since then, both databases have been developed independently.
MariaDB's architecture offers improved scalability and performance. It has a larger thread pool for better concurrency, only offered in MySQL's enterprise version. It also provides better performance in terms of the number of queries served per second.
Columnar storages have proven to outperform their row-based counterparts for workloads heavy on analytics. MariaDB sets itself apart by offering a dedicated DB engine for columnar storage, known as [ColumnStore](https://mariadb.com/kb/en/mariadb-columnstore/+questions/). This unique feature positions MariaDB as an exceptional choice for OLAP workloads, further enhancing its appeal for specific use cases.
**Example**: Using **ColumnStore** in MariaDB
```bash
CREATE TABLE `experiment` (
`time` datetime NOT NULL,
`scientist` varchar(1024) NOT NULL,
`content` text NOT NULL
) ENGINE=Columnstore
```
* **SQLite:** Unlike the other three databases, SQLite is a serverless database! A single-file database, it is lightweight, simple, and quickly embeddable. This unique architecture makes it a great choice for embedded applications.
SQLite, a client-side database, operates on a relational data storage model. However, it does come with some limitations when compared to the other three databases. Its unique architecture, while offering benefits, also means that SQLite has limited transaction and concurrency support.
### 2. Data Types & Unique Functionality
All four databases encompass a comprehensive set of basic datatypes, including text, number, boolean, and date, for regular use cases. However, differences start to appear when dealing with advanced data types. Let us compare the support offered by various databases for advanced data types.
- **JSON** - With the increased adaption of JSON in web applications, databases are often required to persist JSON data directly. Both MySQL and PostgreSQL provide support for JSON datatypes. This support is absent for MariaDB and SQLite, and the best we can do is serialise JSON as a string.
- **Arrays** - PostgreSQL is the only database among the four that supports storing arrays in database tables. Arrays can be persisted as JSON in MySQL, but there is no support for storing arrays natively. Again, MariaDB and SQLite do not provide support for persisting arrays natively.
- **Geospatial Data** - Barring SQLite, all the other databases support Geospatial Data. PostgreSQL's [PostGIS](https://postgis.net/) extension supports over 600 spatial operators. MySQL, with its [Spatial](https://www.cmi.ac.in/madhavan/courses/databases10/mysql-5.0-reference-manual/spatial-extensions.html) extension and MariaDB support over 160 operators.
Each database offers unique features that may be suitable for specific use cases. Here is a list of popular features provided by each database.
| Database | Features |
|---------------|----------------------------------------------------|
| PostgreSQL | [Materialized Views](https://www.postgresql.org/docs/current/rules-materializedviews.html), [Pub/Sub Notifications](https://www.postgresql.org/docs/current/sql-notify.html) |
| MySQL/MariaDB | [Invisible Columns](https://dev.mysql.com/doc/refman/8.0/en/invisible-columns.html), [Temporary Tablespaces](https://www.notion.so/Exploring-Top-Relational-Databases-PostgreSQL-vs-MariaDB-vs-MySQL-vs-SQLite-930eac3a8a2b4f4085f2737a02cbab0e?pvs=21) |
| SQLite | [Virtual Table](https://www.notion.so/Exploring-Top-Relational-Databases-PostgreSQL-vs-MariaDB-vs-MySQL-vs-SQLite-930eac3a8a2b4f4085f2737a02cbab0e?pvs=21) |
### 3. Performance & Scalability
The performance of a database depends on several factors, such as data volume, mix of operations, number of concurrent users, and hardware capability. Therefore, a statement like “***Database system X is more performant than database system Y***” is incomplete without mentioning all of these variables!
MySQL/MariaDB have generally been found to provide better performance for a read-heavy workload. On the other hand, when the workload consists of both read and write operations, PostgreSQL outperforms other databases. For very simple queries on small to medium-sized databases, SQLite will be the most efficient since there is no overhead of maintaining a server and heavy concurrency machinery.
> **NOTE**: It is very important to characterize your workloads and compare database performance on each workload instead of using a general performance comparison!
Talking about scalability, all databases, except SQLite, offer replication and horizontal scalability. Between MariaDB and MySQL, MariaDB is known to be better scalable.
## Development Experience
Besides the core features, general development experience is another significant factor when deciding on a database. This section will explore key factors influencing your experience working with each database option.
### 1. Ease of Use & Learning Curve
#### Installation and Setup Complexity
Regarding setup and installation, SQLite wins the race by miles. With its server-less architecture and zero-configuration setup, it is the simplest to spin up and use. Everything needed to use SQLite comes bundled with the application!
Both MariaDB and MySQL offer a relatively straightforward configuration and usage experience. This ease of installation is a key factor in their popularity for quick Proof of Concept (PoC) and ideation, as it allows developers to focus on their projects rather than the setup process.
PostgreSQL has the most complex configuration of all four. Installing it can be challenging, especially for beginners. While efforts are being made to simplify its installation, it still lacks MariaDB and MySQL in terms of ease of installation.
#### Learning Curve
Without the complexities of large database systems, SQLite has the gentlest learning curve. With some basic knowledge of SQL and data persistence, anyone can start using and working with SQLite.
Both MySQL and MariaDB, with their shared architecture, offer a smooth learning curve for beginners. The knowledge you gain from one database can be easily applied to the other, making the learning process even more efficient.
With its extensive set of features, PostgreSQL has the steepest learning curve. Before they can start using it, users should be familiar with the ORDBMS architecture and several database configurations.
### 2. Community & Support
All four databases are open-source and highly popular, so they provide good community support. However, MySQL also provides an enterprise version, and some feature requests might be denied in the community version in favor of the enterprise version.
### 3. Third-Party Tools and Integrations
All four databases enjoy a rich repository of third-party tools and integrations. These tools simplify day-to-day database management and usage.
#### PostgreSQL
PostgreSQL has a large collection of extensions that add a number of features to it. Some of the popular ones are PostGIS, LTree, and HStore. All four databases are open-source and highly popular, so they provide good community support. However, MySQL also provides an enterprise version, and some feature requests might be denied in the community version in favor of the enterprise version.
* ***Management Tools*** - [psql](https://www.postgresql.org/docs/7.0/app-psql.htm) and [pgAdmin](https://www.pgadmin.org/).
* ***Backup & Restore*** - [pg_dump](https://www.postgresql.org/docs/current/app-pgdump.html) and [pg_restore](https://www.postgresql.org/docs/current/app-pgrestore.html).
* ***Monitoring*** - [pg_stat_activity](https://www.postgresql.org/docs/current/monitoring-stats.html) and [pg_stat_statement](https://www.postgresql.org/docs/current/monitoring-stats.html)
#### MySQL and MariaDB
MySQL and MariaDB being interoperable shares most of the tools in common.
* ***Management Tools*** - mysql and [phpMyAdmin](https://www.phpmyadmin.net/)
* ***Backup & Restore*** - [mysqldump](https://dev.mysql.com/doc/refman/8.4/en/mysqldump.html) and[ mysqlimport](https://dev.mysql.com/doc/refman/8.4/en/mysqlimport.html)
#### SQLite
SQLite too offer tools like [sqlite3](https://docs.python.org/3/library/sqlite3.html) to manage database from command line.
## Database Integration with Strapi
Strapi allows you to use either of these four databases for your application development purposes. Once you decide on the most suitable database technology for your application, you can configure Strapi to persist your application data inside that database. Let us understand the configurations required in Strapi for each database. Check out the [documentation](https://docs.strapi.io/dev-docs/configurations/database) for database configurations in Strapi.
### SQLite Integration with Strapi
SQLite is the default ([quickstart](https://docs.strapi.io/dev-docs/quick-start)) and the recommended database to quickly create an app locally. You can use the `quickstart` flag to automatically configure the SQLite database.
```bash
yarn create strapi-app my-project --quickstart
```
This should automatically open up the admin page on `localhost:1337/admin`. Once logged in, you can create collections and SQLite database will be used to persist all data.
By default the database file (`data.db`) for SQLite will be placed inside `.tmp` folder at the root of your Strapi project. This can be configured in the `database.js` file inside the `config` directory.
```js
module.exports = ({ env }) => ({
connection: {
client: 'sqlite',
connection: {
filename: path.join(__dirname, '..', env('DATABASE_FILENAME', '.tmp/data.db')),
},
useNullAsDefault: true,
},
});
```
You can either set `DATABASE_FILENAME` environment variable or explicitly provide database file path in `database.js`. As discussed, SQLite is the easiest way to get you started when working on applications.
### PostgreSQL Integration with Strapi
We can use the custom installation method for creating Strapi projects that uses PostgreSQL. For this to work, you must already have a running PostgreSQL instance on your machine.
Here is how this can be done. Specify the correct database name, host, port, username, and password for your Postgres database and Strapi will do the rest for you!
```bash
npx create-strapi-app strapi-with-postgres
? Choose your installation type Custom (manual settings)
? Choose your preferred language JavaScript
? Choose your default database client postgres
? Database name: postgres
? Host: 127.0.0.1
? Port: 5432
? Username: postgres
? Password: ********
? Enable SSL connection: No
Creating a project with custom database options.
Creating a new Strapi application at /home/strapi-with-postgres.
Creating files.
Dependencies installed successfully.
Initialized a git repository.
Your application was created at /home/strapi-with-postgres.
Available commands in your project:
yarn develop
Start Strapi in watch mode. (Changes in Strapi project files will trigger a server restart)
yarn start
Start Strapi without watch mode.
yarn build
Build Strapi admin panel.
yarn strapi
Display all available commands.
You can start by doing:
cd /home/strapi-with-postgres
yarn develop
```
As suggested in the output of the npx command, we can start the server and our Strapi application will now use the Postgres database. You might see errors like below if the PostgreSQL database is not running or is not configured properly.
```bash
┌───────────────────────────────────────────────────────────────────────────┐
│ │
│ Error: connect ECONNREFUSED 127.0.0.1:5432 │
│ at TCPConnectWrap.afterConnect [as oncomplete] (node:net:1195:16) │
│ │
└───────────────────────────────────────────────────────────────────────────┘
```
Again, you can find all the database configuration inside the `config/database.js` file.
```js
postgres: {
connection: {
connectionString: env('DATABASE_URL'),
host: env('DATABASE_HOST', 'localhost'),
port: env.int('DATABASE_PORT', 5432),
database: env('DATABASE_NAME', 'strapi'),
user: env('DATABASE_USERNAME', 'strapi'),
password: env('DATABASE_PASSWORD', 'strapi'),
ssl: env.bool('DATABASE_SSL', false) && {
key: env('DATABASE_SSL_KEY', undefined),
cert: env('DATABASE_SSL_CERT', undefined),
ca: env('DATABASE_SSL_CA', undefined),
capath: env('DATABASE_SSL_CAPATH', undefined),
cipher: env('DATABASE_SSL_CIPHER', undefined),
rejectUnauthorized: env.bool(
'DATABASE_SSL_REJECT_UNAUTHORIZED',
true
),
},
schema: env('DATABASE_SCHEMA', 'public'),
},
pool: { min: env.int('DATABASE_POOL_MIN', 2), max: env.int('DATABASE_POOL_MAX', 10) },
}
```
For a comprehensive tutorial on setting up Strapi with Postgres, refer to [this](https://strapi.io/blog/postgre-sql-and-strapi-setup) article.
### MySQL/MariaDB Integration with Strapi
The configuration process for MySQL/MariaDB is similar to that of PostgreSQL. We can use custom installation method for starting a MySQL/MariaDB based Strapi application.
```bash
npx create-strapi-app strapi-with-mysql
? Choose your installation type Custom (manual settings)
? Choose your preferred language JavaScript
? Choose your default database client mysql
? Database name: strapi-with-mysql
? Host: 127.0.0.1
? Port: 3306
? Username: mysql
? Password: *****
? Enable SSL connection: No
Creating a project with custom database options.
Creating a new Strapi application at /home/strapi-with-mysql.
Creating files.
Dependencies installed successfully.
Initialized a git repository.
Your application was created at /home/strapi-with-mysql.
Available commands in your project:
yarn develop
Start Strapi in watch mode. (Changes in Strapi project files will trigger a server restart)
yarn start
Start Strapi without watch mode.
yarn build
Build Strapi admin panel.
yarn strapi
Display all available commands.
You can start by doing:
cd /home/strapi-with-mysql
yarn develop
```
This will add the following configuration inside the `database.js` file. It lists out the client, host, password, database, and user to be used for connecting.
```js
mysql: {
connection: {
connectionString: env('DATABASE_URL'),
host: env('DATABASE_HOST', 'localhost'),
port: env.int('DATABASE_PORT', 3306),
database: env('DATABASE_NAME', 'strapi'),
user: env('DATABASE_USERNAME', 'strapi'),
password: env('DATABASE_PASSWORD', 'strapi'),
ssl: env.bool('DATABASE_SSL', false) && {
key: env('DATABASE_SSL_KEY', undefined),
cert: env('DATABASE_SSL_CERT', undefined),
ca: env('DATABASE_SSL_CA', undefined),
capath: env('DATABASE_SSL_CAPATH', undefined),
cipher: env('DATABASE_SSL_CIPHER', undefined),
rejectUnauthorized: env.bool(
'DATABASE_SSL_REJECT_UNAUTHORIZED',
true
),
},
},
pool: { min: env.int('DATABASE_POOL_MIN', 2), max: env.int('DATABASE_POOL_MAX', 10) },
}
```
For a more comprehensive tutorial on using MySQL/MariaDB with Strapi, refer to [this](https://strapi.io/blog/configuring-strapi-mysql-database) article!
## Use Cases & Recommendations
Equipped with the knowledge of core features and development experience for each of the database, it is time for us to identify what scenarios makes one database preferrable over the other.
* **SQLite**: This is most suited for embedded applications. It can also be a viable option if you are working with low volumes of data without much concern for data concurrency.
* **MySQL**: MySQL is a good choice for quick prototyping. Additionally, if your workload consists of bulk reads and a comparatively smaller number of writes, MySQL is a better candidate.
* **MariaDB**: The fact that MariaDB and MySQL share the same architecture implies that both databases are good candidates for many everyday use cases. But if you are looking for a scalable database that offers high query speed, then MariaDB is the way to go.
* **PostgreSQL**: PostgreSQL becomes the best option when building large and complex enterprise-grade applications. Its rich feature set and SQL standard conformance offer everything you need from a relational database. Strapi allows you to use either of these four databases for your application development purposes. Once you decide on the most suitable database technology for your application, you can configure Strapi to persist your application data inside that database. Let us understand the configurations required in Strapi for each database.
## Comparison Matrix: PostgreSQL Vs. MariaDB Vs. MySQL Vs. SQLite
The image below shows some summarized differences between the top relational databases discussed so far.
## Conclusion
Each database has its own strengths and weaknesses. While one might be easy to install and use, the other might offer more features. When dealing with large volumes of data requiring complex queries, PostgreSQL is the way to go. For embedded applications or low volume-low concurrency use cases, SQLite offers the best solution. MariaDB/MySQL is a better option for medium data volumes and read-heavy workloads.
Choosing the correct database for your particular use case is challenging. Finding one that best aligns with your needs takes a lot of research and experimentation. A thorough understanding of core database features facilitates making informed decisions, as explored in this comparison of PostgreSQL, MySQL, MariaDB, and SQLite. While this article covered the four most popular relational databases, a similar exercise can be done for any database. | the_infinity |
1,881,133 | Unleashing Innovation: The Power of Unnatim India Limited | In today’s fast paced digital space, businesses are constantly seeking for new and innovative ways to... | 0 | 2024-06-08T06:36:47 | https://dev.to/soudipta_barua_8c38b8c914/unleashing-innovation-the-power-of-unnatim-india-limited-5529 | In today’s fast paced digital space, businesses are constantly seeking for new and innovative ways to grow efficiently, enhance productivity and gain a competitive edge in the market.
At **Unnatim**, we understand the challenges that come on the way and provide you streamlined solutions to take your organisation forward without any hazards.
We are tailored to your unique needs. At Unnatim India Limited, we take a comprehensive approach that will collaborate closely with you to craft all software solutions that will align with your needs.
We are equipped with a team of innovative technologies and trained professionals for digital marketing, website design and services.
Partner with us to go on board on a transformative journey, where your business thrives in the digital age.
Check out our website for more: https://unnatim.in/ | soudipta_barua_8c38b8c914 | |
1,881,132 | React 19: Highlights of the Most Recent React JS v19 Version | Every so often, Even as trends change frequently, React remains a popular choice for front-end... | 0 | 2024-06-08T06:32:50 | https://dev.to/lewisblakeney/react-19-highlights-of-the-most-recent-react-js-v19-version-1d3f | react, reactjsdevelopment, news |
Every so often, Even as trends change frequently, React remains a popular choice for front-end developers due to its ability to create efficient and user-friendly web applications. This continued demand for React skills means many companies are actively looking to [hire React JS developers](https://www.webcluesinfotech.com/react-js-development-services/)
The popularity of React is not accidental in any way. With a component-based architecture, declarative nature, and vast tooling ecosystem, it has always been easy for developers to build dynamic user interfaces with React. Many developers worldwide have found it useful in developing anything from single-page applications to complex web experiences.
But everything changes when we talk about React 19. The latest version of the platform does not only entail another minor update; it contains several innovative features that can enable programmers to streamline their workflows and enhance performance by using optimized solutions to build websites.
In this blog post, we will delve into everything about React 19– its main characteristics and how they might affect your project development work. For both experienced and beginner React programmers, this comprehensive guide gives you all the information you need on how best you can maximize React 19.
**React 19: A Game Changer**
React 19 is not simply another incremental update to the React library, which was already awesome. It is a big step forward that takes the best of its precursors and brings it to the next stage with amazing features that can be game changers in web development.
One of the core concepts behind React 19 has been to enable developers to build great user experiences without getting into complicated code patterns or performance pitfalls. Some basic highlights of this are seen in Server Components and an enhanced concurrent rendering.
Server Components, which is a new feature introduced by React 19, enables you to write components once and render them on the server side as well as client side. This comes with various advantages. Primarily, it allows for server-side rendering (SSR) that results in better page loading time initially and SEO enhancements. Secondly, it simplifies data fetching as information can be pulled on the server side and passed down as props to components thus eliminating complex client-side data fetching techniques.
Another major improvement with regards to user interactions is concurrent rendering which forms one of the pillars of React 19 versions. In the previous cases, when being referred to a current render before dealing with user input it might appear laggy or slow down. But if using concurrent rendering, the mix can work through two updates at once such that there will no longer be perceived sluggishness while scrolling, etc., especially in high-interaction applications.
These are some instances where React 19 goes beyond mere bug fixes and version bumps. It revolutionizes how we develop web apps allowing developers to create more performant applications that scale better and are search engine optimized (SEO).
**Technical Deep Dive:**
As much excitement as Server Components and concurrent rendering attract among developers; another upcoming feature has created quite a buzz around: The React compiler. Although still under development, the React compiler seems like it will change performance optimization completely. This experiment seeks ways in which react code could be analyzed and automatically transformed into efficient JavaScript thereby enabling significant performance improvements without requiring developers to implement complex optimization themselves.
**Key Features of React 19:**
React 19 is packed with a host of thrilling traits meant to smoothen the development process and enable you to make outstanding web apps. Here we take a closer look at some of the most influential additions.
**1. Server Components**
Server Components are a shift in the React paradigm that makes it possible for you to write reusable components that can be rendered on both the server and client side. This comes with an attractive pack of benefits:
Improved Initial Load Time and SEO: During the initial request, Server Components are rendered at the server hence delivering fully formed HTML to the browser. Consequently, this results in faster initial page loads which is very crucial for user experiences thus enhancing SEO. Search engines can easily crawl and index such content thereby growing your application's visibility.
Simplified Data Fetching: No more complicated client-side data fetching logic. With Server Components, you may now fetch data directly on the server before passing it down as props into your component. As such, this reduces code redundancy while shifting processing burden from clients making your application more performant.
Code Reusability: The reason why Server Components are special is because they are usable again. You will only need one component that can be rendered both on server or client thus eliminating code duplication each environment requires.
Example:
Suppose you had a blog post component that displayed title, content, as well as author information. In the traditional approach, there might have been separate components for the server-side rendered version (with pre-fetched data) and the client-side rendered version (fetching data dynamically). However, using this Server Component approach means that you can write just one component that handles these two situations hence better code maintainability plus cleanliness.
**2. Improved Performance**
To optimize performance React 19 has emphasized several features for rendering and user interaction streamlining purposes.
Enhanced Concurrent Rendering: Such concurrent rendering enables React to work on another update even as previous ones have been still rendering as mentioned earlier. Such a situation therefore improves user experience, especially in applications with fast user interactions such as typing or scrolling. Users experience a smoother and more responsive application even during complex updates.
Improved Error Boundaries: React 19 enhances error boundaries thus making it possible for you to isolate and output meaningful error messages whenever components fail. This keeps the whole application from crashing and makes it more usable for your customers.
**3. Document Metadata in Components**
Managing document metadata like title tags, and meta descriptions is very easy thanks to React 19. Through the use of the new useDocumentMetadata hook, you can simply define these within your components. This simplifies code while ensuring that SEO best practices are followed throughout your application.
**4. New Hooks**
React 19 comes with two new hooks that improve developer productivity and make code easier to maintain:
useResource: While rendering phase, this hook allows reading resources (e.g., data or files), making data fetching logic simpler and leading to improved code organization.
useDeferredValue with initialValue: This hook gives more power over deferred values by allowing one to specify an initial value that is used while the actual value is being fetched hence avoiding UI glitches plus providing a smooth UX.
**5 Asset Loading**
Apart from other things, React 19 provides new APIs for loading and preloading browser resources which empower developers to handle resource loading better; thus resulting in enhanced response/application time and improved performance.
React 19 is a significant advance because it has many main aspects about which people ought to know. By integrally adding these innovations into your development workflow, you can build performant, scalable, and search engine-optimized websites that offer great user experiences.
**Benefits of Upgrading to React 19**
A huge decision to be made is whether to move to a new framework version or not. Nonetheless, React 19 comes with compelling advantages that make it an indispensable component in any development plan. Here’s why enhancing your business with React 19 can empower you.
- Superior Performance: quicker start-up times and a more fluid user interface experience are some of the performance enhancements implemented using React 19. This implies better user engagement and improved conversions on your applications.
- Smooth Development Workflow: Improved error boundary, server components, and innovative hooks like useResource are a few things that simplify your development process. It enables you to write cleaner maintainable codes while concentrating on creating great UX.
- SEO Benefits: Additionally, Server Components help in controlling document metadata within components to enhance SEO for instance. As such, it allows search engines to easily crawl and index your content thus increasing the visibility of your application in search results.
- Ensuring future-proofed Applications: Embracing cutting-edge technology through React's latest developments for building your apps ensures they will always be ahead of the curve. In return, this makes integration easier with future React features which sets a precedent for you moving forward.
Incorporating React 19 does more than just modernize; rather, it unlocks many benefits for both developers during their development process and end users of their products.
**Conclusion**
React 19 is a big step in developing this formidable front-end framework. It is not just some new features put together; it confirms the dedication of the React team to making developers more powerful and discovering new heights on the web.
Due to Server Components, enhanced performance optimizations, and a concentration on developer experience, React 19 provides great opportunities for building next-generation web applications. Whether you have been working with React for years or are about to start your journey, get yourself well-versed in these advancements so that you can create fast-running, scalable, and SEO-friendly apps with great user experiences.
Are you Interested in using the strength of React 19 for your upcoming project? **WebClues Infotech** offers everything you need. Our team comprises highly skilled React experts who are very conversant with React 19 and its functionalities. We have full-fledged [**reactjs development services**](https://www.webcluesinfotech.com/react-js-development-services/) that enable you to utilize recent updates while developing outstanding web applications like no other. Contact us now and let’s talk about the requirements of your assignment as well as how our knowledge can help bring your idea into reality.
| lewisblakeney |
1,881,131 | Alloy Tires: The Ultimate Upgrade for Your Vehicle | Hbab2cafa425540aca9514e29b374de0de.png Alloy Tires: The Ultimate Upgrade for Your Vehicle Are you... | 0 | 2024-06-08T06:31:55 | https://dev.to/amanda_andersongh_189c006/alloy-tires-the-ultimate-upgrade-for-your-vehicle-3mng | design | Hbab2cafa425540aca9514e29b374de0de.png
Alloy Tires: The Ultimate Upgrade for Your Vehicle
Are you currently sick and tired with your truck or car looking older plus run directly straight down. Do you need to upgrade their drive plus turn minds on your way. Then alloy tire wheel rims would be the revision which are ultimate the vehicle/ if that's so.
Options that come with Alloy Tires
Alloy tires are tires created from a variety of metals, like aluminum plus magnesium. One of the top that is main of alloy tires try they truly are lighter than main-stream steel tires. What this means is your truck or car may very well be considerably fuel-efficient, working for you save money on gas in to the run that was very very long.
In choice, alloy tires is searching that is many is excellent steel tires. They have been for sale in a range that is real, like chrome, black colored colored, plus silver. And that means you have the ability to alter your truck or car to fit your faculties plus design.
Alloy tires offer traction which is better plus managing on the road. It is because they could dissipate conditions better than steel tires, which will end up in effectiveness which is better in moist circumstances.
Innovation in Alloy Tires
Alloy tires went to an means which is easy was most very long they definitely had been first introduced inside the 1960s. Nowadays, alloy tires is produced manufacturing which was using ended up being advanced plus information.
One example of this try technology that are flow-forming. This process involves rotating the Alloy tires at extreme rates while simultaneously force that are utilizing the rim that are outside. This produces the slimmer plus lighter wheel, which regularly creates effectiveness which is better and fuel effectiveness.
Another innovation in alloy tires could be the usage of carbon fiber. Carbon fiber is really a lightweight plus items that are more powerful is normally employed in competition plus aerospace applications. By integrating carbon fiber into an alloys wheels, services are able to establish better plus lighter wheel giving you well satisfaction and administration.
Protection of Alloy Tires
Alloy tires are safer than additionally steel that is old-fashioned. They put less concerns in your car or truck's suspension system system system, that could cause a lifespan which are stretched the automobile because they are lighter.
Alloy tires or aluminun alloy wheels could also be less prone to corroding than metal tires. The reason why steel which will be are more prone to rust along with other forms of oxidation, that could harm the integrity that are structural of wheel.
Utilizing Alloy Tires
Using alloy wheels is easy plus direct. Simply prevent their older steel tires plus trade these with a few alloy tires that fit your car's specifications.
It is critical to remember alloy tires ought to be setup and a specialist that is real because bad installation causes problems for both the wheel with your vehicle.
Service plus Quality
When choosing alloy tires for the car, you need to select a manufacturer which take to offers that are reputable plus tires which can be durable. Try to look for organizations warranties which can be providing likewise have the real history of developing dependable plus things that was durable.
In preference, it's important to precisely keep your alloy tires and alloy wheels to be sure their durability. Like usually cleaning these and detergent that is moderate fluid, avoiding chemical which are harsh, plus curb damage that has been avoiding.
| amanda_andersongh_189c006 |
1,881,130 | Advanced SEO Techniques: Specialized Course in Rohini | Search Engine Optimization (SEO) has become a critical skill for anyone looking to establish a strong... | 0 | 2024-06-08T06:23:14 | https://dev.to/babita_kumari_2b60a23f4a9/advanced-seo-techniques-specialized-course-in-rohini-3c08 |
Search Engine Optimization (SEO) has become a critical skill for anyone looking to establish a strong online presence. Whether you are a business owner, marketer, or aspiring digital professional, mastering SEO can significantly enhance your digital footprint. If you are based in Rohini, you are in luck. Our specialized course, "Advanced SEO Techniques," is designed to equip you with cutting-edge SEO strategies and practices to outperform your competition. This article delves into the importance of advanced SEO techniques, the benefits of our course, and what you can expect to learn.
Why Advanced SEO Techniques Matter
The digital landscape is constantly evolving, with search engines like Google updating their algorithms regularly. Basic SEO knowledge is no longer sufficient to stay competitive. Advanced SEO techniques are necessary to adapt to these changes and maintain or improve your website's rankings. Here are a few reasons why advanced SEO techniques are crucial:
1. Increased Competition: As more businesses realize the importance of SEO, the competition to rank higher in search engine results pages (SERPs) intensifies. Advanced techniques help you stay ahead.
2. Algorithm Updates: Search engines frequently update their algorithms to provide better search results. Advanced SEO techniques help you stay compliant with the latest updates.
3. User Experience: Advanced [SEO Course in Rohini ](https://dssd.in/seo.html) focuses on enhancing user experience, which is a significant factor in search engine rankings. Techniques like mobile optimization, faster loading times, and intuitive navigation are essential.
4. Data-Driven Decisions: Advanced SEO relies heavily on data analysis. Understanding analytics and utilizing tools to monitor performance can lead to more informed decisions and better results.
Benefits of Enrolling in Our Specialized SEO Course in Rohini
Our Advanced SEO Techniques course in Rohini offers numerous benefits:
1. Expert Instructors: Learn from industry experts who bring years of experience and knowledge. Our instructors stay updated with the latest SEO trends and algorithm changes.
2. Comprehensive Curriculum: The course covers a wide range of advanced topics, ensuring you gain a deep understanding of SEO.
3. Practical Experience: Engage in hands-on projects and real-world scenarios to apply what you learn.
4. Networking Opportunities: Connect with other professionals and build a network that can support your career growth.
5. Certification: Earn a certificate that validates your expertise and enhances your professional credibility.
What You Will Learn
Our Advanced SEO Techniques course in Rohini is designed to cover all essential aspects of advanced SEO. Here’s an overview of the key modules:
1.Keyword Research and Analysis: Learn how to identify high-value keywords and use them effectively. Advanced techniques in keyword clustering and semantic search will be covered.
2. On-Page Optimization: Dive deep into advanced on-page SEO techniques, including optimizing meta tags, headers, content, and images. Learn about schema markup and how to use it to enhance your search listings.
3. Technical SEO: Understand the technical aspects of SEO, such as website architecture, XML sitemaps, and robots.txt. Learn how to improve site speed, mobile optimization, and secure your site with HTTPS.
4. Content Strategy: Discover how to create high-quality, engaging content that not only attracts visitors but also ranks well. Explore the use of content hubs, pillar content, and topic clusters.
5. Link Building: Master advanced link-building strategies, including broken link building, guest blogging, and skyscraper techniques. Learn how to acquire high-authority backlinks and avoid penalties.
6. Local SEO: If you have a local business, this module will teach you how to optimize for local search. Learn about Google My Business, local citations, and local link building.
7. SEO Audits: Learn how to conduct thorough SEO audits to identify and fix issues that may be hindering your site's performance. Use advanced tools and techniques to analyze your site's health.
8. Analytics and Reporting: Understand how to use tools like Google Analytics, Google Search Console, and other SEO tools to monitor your performance. Learn how to create comprehensive reports and use data to drive your SEO strategy.
9. Algorithm Updates: Stay up-to-date with the latest algorithm changes and understand how they impact your SEO efforts. Learn how to adapt your strategy to remain compliant and maintain your rankings.
10. Future Trends in SEO: Explore upcoming trends in SEO, such as voice search optimization, AI in SEO, and the impact of new technologies on search behavior.
Practical Experience
Theoretical knowledge is essential, but practical experience is invaluable. Our course includes:
1. Real-World Projects: Work on real-world projects that simulate actual SEO challenges. This hands-on experience will help you apply what you learn and build your portfolio.
2. Case Studies: Analyze case studies of successful SEO campaigns to understand the strategies and techniques used.
3. Tools and Software: Gain proficiency in using advanced SEO tools such as Ahrefs, SEMrush, Moz, and Screaming Frog. These tools are essential for effective SEO analysis and implementation.
Networking and Career Opportunities
One of the significant advantages of our SEO course in Rohini is the opportunity to network with like-minded individuals. Here’s how you can benefit:
1. Networking Events: Participate in events and workshops where you can meet other professionals, share insights, and build connections.
2. Job Placement Assistance: Our course includes job placement assistance to help you find opportunities in the SEO industry.
3. Alumni Network: Join our alumni network to stay connected with past students and leverage their experiences and knowledge.
Certification and Recognition
Upon completing our Advanced SEO Techniques course in Rohini, you will receive a certificate that demonstrates your expertise in advanced SEO. This certification can:
1. Enhance Your Resume: Add value to your resume and make you a more attractive candidate to potential employers.
2. Boost Your Credibility: Show clients or employers that you have undergone rigorous training and possess the necessary skills.
3. Open New Opportunities: With advanced SEO skills, you can explore various career paths such as SEO specialist, digital marketing manager, content strategist, and more.
Why Choose Our Course in Rohini?
Rohini is a bustling area with a growing demand for digital marketing skills. Choosing our Advanced SEO Techniques course offers several local advantages:
1. Convenient Location: Our training center is easily accessible, making it convenient for you to attend classes.
2. Local Market Insights: Gain insights into the local market and understand how to apply SEO techniques to businesses in Rohini.
3. Community Support: Be part of a local community of learners and professionals who can support your growth.
Conclusion
In today’s digital age, advanced SEO techniques are essential for anyone looking to improve their online presence and achieve digital success. Our specialized course in Rohini is designed to provide you with the knowledge, skills, and practical experience needed to excel in SEO. Whether you are a beginner looking to enter the field or a professional seeking to upgrade your skills, this course offers a comprehensive and hands-on approach to mastering advanced SEO.
Don’t miss the opportunity to learn from industry experts, gain practical experience, and join a network of like-minded professionals. Enroll in our Advanced SEO Techniques course in Rohini today and take the first step towards becoming an SEO expert.
For more information and to register, visit our website or contact us at [Contact Information]. We look forward to helping you achieve your SEO goals!
Address - 1st Floor, H-34/1, near, Ayodhya Chowk, Sector 3, Rohini, Delhi, 110085
https://www.linkedin.com/pulse/choosing-right-digital-marketing-course-vvmtf/
```
```
| babita_kumari_2b60a23f4a9 | |
1,881,129 | Latest Newsletter: Collaborating on a Rocky Road (Issue #167) | Crypto going mainstream, belgians on bitcoin, the etherium vs solana debate, another open source rug pull, superintelligence and digital collaboration in VFX | 0 | 2024-06-08T06:22:59 | https://dev.to/mjgs/latest-newsletter-collaborating-on-a-rocky-road-issue-167-3ph5 | javascript, tech, webdev, discuss | ---
title: Latest Newsletter: Collaborating on a Rocky Road (Issue #167)
published: true
description: Crypto going mainstream, belgians on bitcoin, the etherium vs solana debate, another open source rug pull, superintelligence and digital collaboration in VFX
tags: javascript, tech, webdev, discuss
---
Latest Newsletter: Collaborating on a Rocky Road (Issue #167)
Crypto going mainstream, belgians on bitcoin, the etherium vs solana debate, another open source rug pull, superintelligence and digital collaboration in VFX
https://markjgsmith.substack.com/p/saturday-8th-june-2024-collaborating
Would love to hear any comments and feedback you have.
[@markjgsmith](https://twitter.com/markjgsmith) | mjgs |
1,881,128 | My Pen on CodePen | Check out this Pen I made! | 0 | 2024-06-08T06:22:34 | https://dev.to/dog_man/my-pen-on-codepen-30e5 | codepen | Check out this Pen I made!
{% codepen https://codepen.io/Bigandrewc/pen/YzbxpNp %} | dog_man |
1,881,097 | Configuring Hibernate for Azure Virtual Desktop (AVD) | Step-by-Step Guide | This blog post discusses how to configure the hibernate feature for Azure Virtual Desktop (AVD)... | 0 | 2024-06-08T06:20:49 | https://dev.to/amalkabraham001/configuring-hibernate-for-azure-virtual-desktop-avd-step-by-step-guide-67a | avd, microsoft, azure | This blog post discusses how to configure the hibernate feature for Azure Virtual Desktop (AVD) desktops.Many companies use autoscaling features to reduce cloud spending. However, personal AVD users may experience wait times while VMs transition from a deallocated state to a ready state.The hibernate option allows users to resume their work or restore the AVD's current state when they return the next day.It allows users to faster access to their desktops and preserve application states. Hibernation also benefits companies by saving cloud costs and reducing energy consumption, aligning with sustainability initiatives.
Let's now explore how to configure hibernation for AVD desktops...
Hibernate feature is supported only in specific Azure VM families like DsV5 series and Esv5 series.
## Enabling Hibernate feature during AVD Session Host creation
For those new to AVD, a session host is a virtual machine that provides desktops to users. To enable hibernation, follow these steps:
1. Initiate the session host creation wizard within AVD.
1. During the VM creation workflow, locate the option labeled "Hibernate" and tick the checkbox. This action will activate the hibernate feature for the virtual machine (as illustrated in the available screenshot).
Proceed with the session host creation. Once the session hosts are created, the next step is to configure hibernate via auto scaling.
## Configure the Hibernate via auto scaling.
For those new to AVD auto-scaling, you can refer to your earlier blog... (https://amalcloud.wordpress.com/2023/07/22/770/) .
In the auto scaling settings, change the disconnect and log off settings to Hibernate the VM rather than shutting it down(as illustrated in the available screenshot). Perform the same for weekend and weekday schedules.
## VM going to Hibernate
We have configured the auto scaling feature to hibernate the VM after X minutes of disconnection, logoff as per the configuration. I configured 1 minute to hibernate my VM after disconnection. In the Azure console the VM state has changed to "hibernated(deallocated)"(as illustrated in the available screenshot).
One interesting fact is; my VM took 1 minute 47 seconds to restore completely and become accessible (or to be able to see) my desktop. This includes entering the credentials to AVD as well.
However my VDI state has been preserved and the user satisfaction increased.
I haven't observed any other issues with Hibernate feature, please comment if you are seeing any abnormalities after enabling autoscaling feature.
#enable Hibernate option in existing VMs
While hibernation can be enabled for existing VMs using various methods like PowerShell, CLI, ARM, SDKs, and APIs, let's explore how to achieve this using PowerShell.
For this demo, I took a VM where hibernate feature is disabled as shown in the below screenshot.
Execute the script located in my github to enable hibernate feature
(https://github.com/amalkabraham001/AVD/blob/c1a60c159253eb628aff589004cd3ec3f11bdcaf/Session%20Host/hibernate/enablehibernate.ps1).
The script will first deallocate the VM and then enable hibernation support in the OS disk.
Once the disk level hibernation support is enabled, the script will enable hibernate feature in the VM as shown in the below screenshots.
Hope this blog is informative. Please feel free to share this blog.
| amalkabraham001 |
1,880,525 | Exploring Angular Directives: A Comprehensive Guide | Angular directives are one of the core building blocks of the Angular framework. They allow... | 0 | 2024-06-08T06:15:00 | https://dev.to/manthanank/exploring-angular-directives-a-comprehensive-guide-4bia | webdev, javascript, beginners, angular | Angular directives are one of the core building blocks of the Angular framework. They allow developers to extend HTML's capabilities by creating new HTML elements, attributes, classes, and comments. Directives can be used to manipulate the DOM, apply styles, manage forms, and more.
In this blog, we'll dive deep into Angular directives, exploring their types, usage, and how to create custom directives with practical code examples.
### Table of Contents
1. What are Angular Directives?
2. Types of Directives
- Attribute Directives
- Structural Directives
- Component Directives
3. Creating Custom Directives
- Custom Attribute Directive
- Custom Structural Directive
4. Practical Examples
5. Conclusion
### 1. What are Angular Directives?
Angular directives are special tokens in the markup that tell the Angular compiler to do something with a DOM element or even the entire DOM tree. They play a crucial role in extending the HTML vocabulary and making it more expressive.
### 2. Types of Directives
Angular directives can be categorized into three main types:
#### Attribute Directives
Attribute directives are used to change the appearance or behavior of an element, component, or another directive. They are typically applied as attributes to elements.
**Example: `ngClass`**
```html
<div [ngClass]="{'highlight': isHighlighted}">Hello, Angular!</div>
```
#### Structural Directives
Structural directives change the DOM layout by adding or removing elements. They are denoted by a leading asterisk (`*`).
**Example: `ngIf`**
```html
<div *ngIf="isVisible">This content is conditionally visible.</div>
```
#### Component Directives
Component directives are the most common directives in Angular. Every component you create is a directive with a template.
**Example: Custom Component**
```typescript
@Component({
selector: 'app-greeting',
template: `<h1>Hello, {{name}}!</h1>`
})
export class GreetingComponent {
name: string = 'Angular';
}
```
### 3. Creating Custom Directives
Creating custom directives in Angular is straightforward. Let's explore how to create both attribute and structural directives.
#### Custom Attribute Directive
We'll create an attribute directive that changes the background color of an element when it is hovered over.
**Step 1: Generate the Directive**
```bash
ng generate directive hoverHighlight
```
**Step 2: Implement the Directive**
```typescript
import { Directive, ElementRef, HostListener, Input } from '@angular/core';
@Directive({
selector: '[appHoverHighlight]'
})
export class HoverHighlightDirective {
@Input() highlightColor: string = 'yellow';
constructor(private el: ElementRef) {}
@HostListener('mouseenter') onMouseEnter() {
this.highlight(this.highlightColor);
}
@HostListener('mouseleave') onMouseLeave() {
this.highlight(null);
}
private highlight(color: string | null) {
this.el.nativeElement.style.backgroundColor = color;
}
}
```
**Step 3: Use the Directive in a Template**
```html
<p appHoverHighlight highlightColor="lightblue">Hover over me to see the effect!</p>
```
#### Custom Structural Directive
We'll create a structural directive that conditionally includes a template based on a boolean expression.
**Step 1: Generate the Directive**
```bash
ng generate directive ifNot
```
**Step 2: Implement the Directive**
```typescript
import { Directive, Input, TemplateRef, ViewContainerRef } from '@angular/core';
@Directive({
selector: '[appIfNot]'
})
export class IfNotDirective {
@Input() set appIfNot(condition: boolean) {
if (!condition) {
this.viewContainer.createEmbeddedView(this.templateRef);
} else {
this.viewContainer.clear();
}
}
constructor(
private templateRef: TemplateRef<any>,
private viewContainer: ViewContainerRef
) {}
}
```
**Step 3: Use the Directive in a Template**
```html
<div *appIfNot="isVisible">This content is conditionally hidden.</div>
```
### 4. Practical Examples
Let's put everything together with a practical example. We will create an Angular application that uses both custom attribute and structural directives.
**Step 1: Create a New Angular Application**
```bash
ng new directive-demo
cd directive-demo
```
**Step 2: Create Directives (ifNot and hoverHighlight)**
Follow the steps above to generate and implement `HoverHighlightDirective` and `IfNotDirective`.
**Step 3: Update the App Component**
**app.component.html:**
```html
<h1>Angular Directive Demo</h1>
<p appHoverHighlight highlightColor="lightgreen">Hover over this text to see the background color change.</p>
<button (click)="toggleVisibility()">Toggle Visibility</button>
<div *appIfNot="isContentVisible">This content is conditionally hidden.</div>
```
**app.component.ts:**
```typescript
import { Component } from '@angular/core';
@Component({
selector: 'app-root',
templateUrl: './app.component.html',
styleUrls: ['./app.component.css']
})
export class AppComponent {
isContentVisible: boolean = true;
toggleVisibility() {
this.isContentVisible = !this.isContentVisible;
}
}
```
[Stackblitz Link](https://stackblitz.com/edit/stackblitz-starters-sdgf7s?file=src%2Fmain.ts)
### 5. Conclusion
Angular directives are powerful tools for extending HTML's capabilities and building dynamic, interactive applications. By understanding and utilizing attribute, structural, and component directives, you can create more modular and reusable code. Custom directives further enhance your ability to create tailored behaviors and improve the overall user experience.
Experiment with creating your own directives to see how they can simplify and enrich your Angular projects. Happy coding! | manthanank |
1,881,124 | What other skills does industry need in ML? | Hey, I have a doubt. I have been applying for internships on various platforms but unable to get none... | 0 | 2024-06-08T06:14:43 | https://dev.to/johnrs/what-other-skills-does-industry-need-in-ml-1995 | machinelearning, datascience, help, expert | Hey,
I have a doubt. I have been applying for internships on various platforms but unable to get none in Data Science and Machine Learning. Let me give you guys an overview on my experience.
Background: I have been getting experience in Data Science and Machine Learning. I have learnt about Data Preprocessing, Data Visualization, Training and Testing a ML model, Hyperparameter Tuning and Cross Validation. I have also been working learning Deep Learning. I sometimes also feel that I lack various skills which I have to work on like Computer Vision and NLP, but can't get started.
I would like to get some suggestions on what other skills like API building, CI/CD, Docker is essential for ML. Also, want a thought on how to get aways from this stuck phase.
A true remark will be appreciated.
| johnrs |
1,881,122 | JavaScript Performance: Making Websites Fast and Responsive🚀🚀🚀 | Creating a fast and responsive website is essential for user satisfaction and engagement. This guide... | 0 | 2024-06-08T06:12:09 | https://dev.to/dharamgfx/javascript-performance-making-websites-fast-and-responsive-g9 | webdev, javascript, beginners, programming | Creating a fast and responsive website is essential for user satisfaction and engagement. This guide explores the importance of web performance, how to measure it, and various techniques to optimize JavaScript, HTML, CSS, and multimedia content.
---
## **The "Why" of Web Performance**
### Importance of Web Performance
- **User Experience:** Faster websites reduce bounce rates and improve engagement.
- **SEO:** Search engines prioritize faster websites.
- **Conversion Rates:** Faster load times can significantly boost sales and conversions.
**Example:** Amazon found that every 100ms of latency cost them 1% in sales.
---
## **What is Web Performance?**
### Understanding Web Performance
- **Definition:** The speed and responsiveness of a website, affecting how quickly content is delivered to users.
- **Key Metrics:** Page load time, time to interactive (TTI), and first contentful paint (FCP).
**Example:** A website with good performance loads within 2-3 seconds and has minimal delays in user interactions.
---
## **Perceived Performance**
### Enhancing Perceived Speed
- **Perceived Performance:** How fast a website feels to the user.
- **Techniques:**
- **Lazy Loading:** Load images and other resources only when needed.
- **Skeleton Screens:** Display placeholders while content is loading.
**Example:** Implementing lazy loading for images can reduce initial load time, making the site feel faster.
---
## **Measuring Performance**
### Tools and Metrics
- **Performance Tools:** Google Lighthouse, WebPageTest, Chrome DevTools.
- **Key Metrics to Track:** FCP, TTI, and Largest Contentful Paint (LCP).
**Example:** Using Google Lighthouse to audit a website provides a comprehensive performance report with actionable insights.
---
## **Multimedia: Images**
### Optimizing Images
- **Compression:** Reduce file size without losing quality.
- **Responsive Images:** Serve different image sizes based on the device.
- **Formats:** Use modern formats like WebP for better compression.
**Example:** Using `srcset` and `sizes` attributes in HTML to serve responsive images:
```html
<img src="image.jpg" srcset="image-320w.jpg 320w, image-480w.jpg 480w" sizes="(max-width: 600px) 480px, 800px" alt="Sample Image">
```
---
## **Multimedia: Video**
### Optimizing Video
- **Formats:** Use efficient video formats like MP4 or WebM.
- **Streaming:** Implement adaptive streaming to adjust quality based on bandwidth.
- **Lazy Loading:** Load videos only when they come into the viewport.
**Example:** Embedding a video with lazy loading:
```html
<video width="600" controls>
<source src="movie.mp4" type="video/mp4">
Your browser does not support the video tag.
</video>
```
---
## **JavaScript Performance Optimization**
### Techniques for Faster JavaScript
- **Minification:** Reduce file size by removing whitespace and comments.
- **Code Splitting:** Split code into smaller chunks to load only what is needed.
- **Debouncing and Throttling:** Optimize event handling to reduce unnecessary function calls.
**Example:** Using a bundler like Webpack to split JavaScript files:
```javascript
// webpack.config.js
module.exports = {
entry: {
app: './src/index.js',
},
output: {
filename: '[name].bundle.js',
},
optimization: {
splitChunks: {
chunks: 'all',
},
},
};
```
---
## **HTML Performance Optimization**
### Strategies for Optimizing HTML
- **Minification:** Reduce the size of HTML files by removing unnecessary whitespace and comments.
- **Preloading:** Use `<link rel="preload">` to load critical resources faster.
- **Defer Non-Essential Scripts:** Use `async` or `defer` attributes for scripts.
**Example:** Preloading critical CSS:
```html
<link rel="preload" href="styles.css" as="style">
<link rel="stylesheet" href="styles.css">
```
---
## **CSS Performance Optimization**
### Improving CSS Efficiency
- **Minification:** Compress CSS files to reduce size.
- **Critical CSS:** Inline critical CSS for above-the-fold content.
- **Avoiding Blocking:** Load non-critical CSS asynchronously.
**Example:** Inlining critical CSS:
```html
<style>
/* Critical CSS */
body {
margin: 0;
font-family: Arial, sans-serif;
}
</style>
```
---
## **The Business Case for Web Performance**
### Why Performance Matters for Business
- **Revenue Impact:** Faster websites lead to higher conversion rates and sales.
- **Customer Satisfaction:** Improved performance enhances user satisfaction and retention.
- **Competitive Advantage:** A fast, responsive website can set a business apart from competitors.
**Example:** Walmart found that for every 1-second improvement in page load time, their conversion increased by 2%.
---
## **Additional Topics**
### Caching Strategies
- **Browser Caching:** Utilize browser cache to store static resources.
- **Content Delivery Networks (CDNs):** Use CDNs to distribute content geographically, reducing latency.
**Example:** Setting cache headers in the HTTP response:
```http
Cache-Control: max-age=31536000
```
### Accessibility and Performance
- **Inclusive Design:** Ensure performance optimizations do not hinder accessibility.
- **Progressive Enhancement:** Deliver core functionality to all users, regardless of device or browser.
**Example:** Using ARIA roles and properties to improve accessibility:
```html
<button aria-label="Close" onclick="closeDialog()">X</button>
```
### Continuous Performance Monitoring
- **Automated Tools:** Implement automated tools and processes for continuous performance monitoring and optimization.
- **User Feedback:** Collect and analyze user feedback to identify performance bottlenecks.
**Example:** Using performance monitoring tools like New Relic to track real-time performance metrics.
---
By focusing on these key areas, developers can significantly enhance the performance of their websites, leading to better user experiences, improved search engine rankings, and higher business success. | dharamgfx |
1,881,121 | How to Remain the Defined Text Color on iOS Devices | I wanted to share an issue I faced throughout my project and hope this article will help someone who... | 0 | 2024-06-08T06:08:25 | https://dev.to/ryoichihomma/how-to-remain-the-desired-text-color-on-ios-devices-53pj | I wanted to share an issue I faced throughout my project and hope this article will help someone who may be facing the same one.
## The Issue and Solution
While the text color on Windows devices is the same as the defined color in CSS, it turns blue on iOS devices. To fix this issue, I added this line.
```
-webkit-text-fill-color: black;
color: black;
```
## Similar Issue I Found. Please Give Me Advice.
Even though I did not define the text-decoration property and its value as "underline", the underline becomes visible on only iOS devices. The funny thing is it gets visible only on Google Chrome when I tested it on iOS devices.
I defined the "none" value to the text-decoration property but it did not work. I already fixed this issue by wrapping with the anchor element though, I am just curious if there is any other way.
Your feedback and advice is appreciated! | ryoichihomma | |
1,881,120 | Elevate Your PR Business with Proven Strategies | In the fast-paced world of business news today, staying ahead is not just an advantage—it's a... | 0 | 2024-06-08T06:07:08 | https://dev.to/prbusiness/elevate-your-pr-business-with-proven-strategies-2288 | prbusiness, pressreleasesites, newsrelease, businesspressreleases | In the fast-paced world of business news today, staying ahead is not just an advantage—it's a necessity. Your **PR business** needs to be on top of the game, delivering news releases that captivate and compel. With strategic approaches, you can ensure your business stands out amidst the noise.
## Mastering the Art of News Release
Crafting compelling [news releases](https://www.pressreleasepower.com/) is at the core of PR success. It's about more than just sharing information; it's about storytelling. Engage your audience from the first line, offering them valuable insights and leaving them eager for more.
### Unleash Your Potential with Press Release Sites
[Press release sites](https://www.pressreleasepower.com/) are your gateway to a wider audience. Utilize these platforms to amplify your message and reach new heights. With strategic placement and compelling content, your press releases can garner attention from key players in your industry.
### Leveraging News Wires for Maximum Impact
News wires offer unparalleled reach and exposure. By tapping into these networks, you can ensure your press releases are seen by the right people at the right time. Harness the power of [news wires](https://pressreleasepower.com/distribution) to amplify your message and solidify your presence in the market.
### Transform Your Approach with the Best Press Release Service
Investing in the [best press release service](https://pressreleasepower.com/distribution) can make all the difference. With a team of experts behind you, you can craft press releases that command attention and drive action. Choose a service that understands your goals and knows how to achieve results.
### Issue Press Release: Your Gateway to Success
Don't underestimate the power of issuing press releases regularly. Consistency is key in the world of PR, and by maintaining a steady stream of news releases, you can keep your audience engaged and informed. Make [issuing press releases](https://pressreleasepower.com/distribution) a priority and watch your business thrive.
### Navigating the PR Landscape with Expertise
In the dynamic world of PR, staying ahead requires expertise and innovation. Embrace new trends and technologies, but never lose sight of the fundamentals. With a strategic approach and a commitment to excellence, you can elevate your PR business to new heights of success.
### Elevate Your PR Business Today
It's time to take your [PR business](https://pressreleasepower.com/best-press-release-distribution-service) to the next level. With proven strategies and a dedication to excellence, you can unlock new opportunities and achieve unparalleled success. Embrace the power of press releases and watch your business soar.
### Harnessing the Power of Business Press Releases
[Business press releases](https://pressreleasepower.com/best-press-release-distribution-service) are a cornerstone of effective PR strategy. These succinct documents communicate vital information about your company, products, or services to the media and the public. However, crafting a compelling press release requires more than just relaying facts; it demands storytelling finesse and strategic dissemination.
### Crafting Compelling Business Press Releases
To create press releases that resonate with your audience, start by identifying the key message you want to convey. Whether it's a new product launch, a company milestone, or an industry event, your press release should focus on a single, clear objective. Use engaging language and vivid imagery to captivate readers from the outset.
### Optimizing for Maximum Visibility
Once your press release is polished and perfected, it's time to distribute it strategically. Utilize press release distribution services to ensure your message reaches the widest possible audience. Target industry-specific journalists and media outlets to increase the likelihood of coverage and maximize visibility.
### Monitoring and Measuring Success
After distributing your press release, don't forget to monitor its performance and measure its impact. Track metrics such as website traffic, social media engagement, and media mentions to gauge the effectiveness of your PR efforts. Use this data to refine your strategy and optimize future press releases for even greater success.
### Leveraging Multimedia Elements
In today's digital age, multimedia elements such as images, videos, and infographics can significantly enhance the effectiveness of your press releases. Incorporate visually appealing content to complement your written message and capture the attention of your audience. Remember to optimize multimedia files for fast loading times and compatibility across devices.
### Embracing Innovation and Adaptation
As the PR landscape continues to evolve, it's crucial to embrace innovation and adapt to changing trends. Experiment with new formats, distribution channels, and storytelling techniques to stay ahead of the curve. By remaining agile and proactive, you can position your business for long-term success in an ever-changing media landscape.
### Embracing the Future of PR Business
As we navigate the ever-evolving landscape of PR, it's essential to embrace the future with open arms. Stay agile, adapt to changes, and leverage emerging technologies to stay ahead of the curve. The future belongs to those who are willing to innovate and push the boundaries of what's possible.
### Investing in Your Success
Your PR business is more than just a venture—it's a journey towards success. Invest in the right tools, resources, and talent to ensure your business thrives in the competitive market. Whether it's upgrading your technology or expanding your team, every investment you make brings you one step closer to your goals.
The world of PR is ever-changing, but with the right strategies and mindset, you can elevate your business to new heights of success. From mastering the art of news release to embracing emerging technologies, the opportunities are endless. So, take the leap, seize the moment, and elevate your **PR business** to greatness.
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Mobile - +91-9212306116
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Email - contact@pressreleasepower.com | pragencyuk |
1,881,119 | Setting up for Drupal's Functional JavaScript tests | Resources PHPUnit Browser test tutorial, Drupal.org, 26 January 2024 Running PHPUnit... | 0 | 2024-06-08T06:06:43 | https://dev.to/drupalista/drupal-functionaljavascript-testing-1fo7 | drupal, docker, php, phpunit | ## Resources
- [PHPUnit Browser test tutorial](https://www.drupal.org/docs/develop/automated-testing/phpunit-in-drupal/phpunit-browser-test-tutorial), Drupal.org, 26 January 2024
- [Running PHPUnit JavaScript tests](https://www.drupal.org/docs/develop/automated-testing/phpunit-in-drupal/running-phpunit-javascript-tests), Drupal.org, 8 June 2024
- [PHPUnit JavaScript test writing tutorial](https://www.drupal.org/docs/automated-testing/phpunit-in-drupal/phpunit-javascript-test-writing-tutorial), Drupal.org, 24 July 2022
- [Mink documentation](https://mink.behat.org/en/latest/index.html), Behat.org, latest version
- [Inspiration for custom Dockerfile I'm using in Lando](https://github.com/lando/php/issues/77), Github, 2023
- [D.O. issue #3405976: Transaction autocommit during shutdown relies on unreliable object destruction order (xdebug 3.3+ enabled)](https://www.drupal.org/project/drupal/issues/3405976), Drupal.org, created 2023, updated 3 June 2024.
### About you
You are a Drupal, Symfony, or any kind of PHP dev and are looking for help with a peculiar aspect of unit testing (see title above), a tale from the crypts, or nap time story that will put you to sleep. Probably a combination of all of those. Otherwise you should probably move along ;)
### The context
I'm testing a OAuth implementation between Drupal and SoundCloud and using Drupal's functional suite to do so. The rest of my module is using either kernel or regular unit tests. But for OAuth it's either a mock (see tests for [Martin1982\OAuth2](https://packagist.org/packages/martin1982/oauth2-soundcloud) on Packagist), or a live call.
I already looked at [some mocking methods](https://github.com/Martin1982/oauth2-soundcloud/blob/24ac2edc9151bde477bc8841e49a6421d2a449ff/tests/Provider/SoundCloudTest.php) and I don't like them, too fake; I know, hot take. The SoundCloud service decommissions your access if you do not use it. Baking a live OAuth call into the testing helps keep the access alive (otherwise you'd have to wait months for re-authorization).
I'm aiming to TDD the heck out of a contrib module I'm doing for fun, and so leaving stones unturned (in testing) is not an option. _This is our definition of fun in the development department._
Not trying to say one way (mocking) is better than the other (live call), or that there is a right answer. I'm not going to Joel Spolsky this post either. I'm just going with my gut feeling and documenting the process.
### Why this post
I already lost the opportunity to document other fixes/discoveries/tips I've done so far with regards to "functional javascript" unit testing today, and so that's why I am starting this post.
I know that not in a week, but rather by tomorrow I'll forget the details because they're too many to keep track of. Not a bug of this business, just a feature. Documenting stuff somewhere is how we deal with this ... loss of context.
Also the sooner I can start dumping my browser tabs somewhere else other than a session saver or OneNote, the faster that I can close them up. Marie Kondo would not approve of the amount of tabs I have open, and neither do I! The thing I hate about dumping an entire browser session is that I'll barely revisit those while hunting for a resource. And OneNote just gets out of control, _too... many... notes_
Needless to say, you should know this is a _raw_ post. There is no editing. There is no shiny [merchandising](https://www.denofgeek.com/movies/how-george-lucas-prevented-spaceballs-merchandise/) material, alt coins or artificial intelligence involved.
### Anyways.
Before PHPUnit was having trouble connecting to Chrome. A quick telnet in the Lando appserver container confirmed that Chrome was indeed up and reachable by the PHP container:
And before that I dealt with
```
/app/docroot/web/core/tests/Drupal/FunctionalJavascriptTests/WebDriverTestBase.php:146
The "chromeOptions" array key is deprecated in drupal:10.3.0 and is removed from drupal:11.0.0. Use "goog:chromeOptions instead.
```
The link (with fix) to that notice is https://www.drupal.org/node/3422624.
I prefer to use environment variables to configure the unit testing because they're easier to access than `phpunit.xml`. While I've set them before in the Lando config file, setting things in Lando means that you have to rebuild and restart the whole stack for environmental changes to take effect. Time, it just adds up, man.
Instead I put it in a bash helper called by Lando tooling. This is the env var:
```bash
# The "chromeOptions" array key is deprecated in drupal:10.3.0 and is removed from drupal:11.0.0.
# Use "goog:chromeOptions instead. See https://www.drupal.org/node/3422624
export MINK_DRIVER_ARGS_WEBDRIVER='["chrome", {"browserName": "chrome", "goog:chromeOptions": {"args": ["--disable-gpu","--headless", "--no-sandbox", "--disable-dev-shm-usage"]}}, "http://chrome:9515"]'
```
### Fixing the (second) connectivity issue
My Lando chrome spec needed to be updated to add the allowed origins flag to the chromedriver:
```yaml
chrome:
type: compose
services:
image: drupalci/webdriver-chromedriver:production
command: chromedriver --log-path=/tmp/chromedriver.log --verbose --allowed-origins=* --whitelisted-ips=
```
Note that there is a myriad chromedriver images out there, and that the drupalci happens to be the one mentioned by either Lando or [Drupal.org](https://www.drupal.org/docs/develop/automated-testing/phpunit-in-drupal/running-phpunit-javascript-tests#docker-compose) documentation (maybe).
Credit for that fix is in Github, thanks to user [@Niklan](https://github.com/wodby/docker4drupal/issues/491#issuecomment-1195192823).
### Access is denied and invalid cookie domain
Mink is reporting `Failed to read the 'sessionStorage' property from 'Window': Access is denied for this document.`
PHPUnit is reporting `
Test Skipped (Drupal\Tests\musica\FunctionalJavascript\FooTest::testMyFirstJavasScriptTest)
An unexpected error occurred while starting Mink: invalid cookie domain`
### T.B.C., 6/7/24
I still have 30 or so browser tabs open (lol) and have to hunt this one down.
Love spending time on testing infrastructure instead of "actual code" (sarcasm).
It's well past beyond midnight and tomorrow is another day. I'll come back to update this post as I move along.
T.B.C. ...
### Invalid cookie domain, 6/8/24
This seems to be highly correlated to env vars `SIMPLETEST_BASE_URL` and `BROWSERTEST_OUTPUT_BASE_URL`. I changed the first from secure `https` to plain-text `http`. The URL belongs to the Lando project hosting the Docker and Drupal stack.
Here is what my environment variables for PHPUnit are looking like now:
```
# Variables by integration tests.
export SIMPLETEST_BASE_URL="http://d10ee.lndo.site"
export SIMPLETEST_DB="mysql://drupalX:drupalX@database/drupal10_simpletest"
export BROWSERTEST_OUTPUT_DIRECTORY="$SITES_PATH/simpletest/browser_output"
export BROWSERTEST_OUTPUT_BASE_URL="http://d10ee.lndo.site"
```
This feels good, this is a great start to my weekend. The Chrome webdriver logs went from displaying _nada_ to basically a million lines of verbose output? It's doing a lot of something!
Another good thing that happened is that the `invalid cookie domain` error in the PHPUnit logs went away (when run with the `--debug` flag), and I got a hit in the breakpoint for one of the tests. Both dummy tests I have in place were getting skipped before and so no test function breakpoints were getting hit.
Now here's an interesting error that I've never seen before while doing Unit or Kernel tests in Drupal:
`PHPUnit\Framework\Exception: PHP Fatal error: Uncaught AssertionError: Transaction $stack was not empty.`
All I have for my dummy test is the following:
```php
/**
* Stub.
*/
public function testCancelExpressionInRule(): void {
$page = $this->getSession()->getPage();
$this->assertTrue(TRUE, 'dumb assertion');
$test = NULL;
}
```
I'll be interesting to see where that error is coming from. I've never done _this_ particular kind of test in Drupal (Functional JavaScript through PHPUnit), so I'll be learning something new and sharing it here.
T.B.C., see you later today!
### Test Class Structure, 6/8/24 1:44pm
I want to make a brief note about how the Functional JavaScript test is structured.
When I declare my test, the class looks something like this:
```php
#[CoversNothing]
#[Group('javascript')]
class FooTest extends WebDriverTestBase {
```
The covers nothing group is used because as far as I understand, Functional and Functional JavaScript tests are not able to cover anything (hence they cover nothing). The group is arbitrary and I use it to fine-tune which tests get run.
Note the extension of `WebDriverTestBase`. This is an abstract class in Drupal core, which itself extends `BrowserTestBase`.
```php
/**
* Runs a browser test using a driver that supports JavaScript.
*
* Base class for testing browser interaction implemented in JavaScript.
*
* @ingroup testing
*/
abstract class WebDriverTestBase extends BrowserTestBase {
```
`WebDriverTestBase` is located at `core/tests/Drupal/FunctionalJavascriptTests/WebDriverTestBase.php`.
`BrowserTestBase` itself extends `PHPUnit\Framework\TestCase`, which as the namespace indicates comes from PHPUnit itself.
So the inheritance hierarchy looks something like this:
`PHPUnit\Framework\TestCase -> BrowserTestBase -> WebDriverTestBase -> YourFooBarTest`
The reason why I bring this up is because the `BrowserTestBase->setUp()` method is interesting:
```php
/**
* {@inheritdoc}
*/
protected function setUp(): void {
parent::setUp();
$this->setUpAppRoot();
chdir($this->root);
// Allow tests to compare MarkupInterface objects via assertEquals().
$this->registerComparator(new MarkupInterfaceComparator());
$this->setupBaseUrl();
// Install Drupal test site.
$this->prepareEnvironment();
$this->installDrupal();
// Setup Mink. Register Mink exceptions to cause test failures instead of
// errors.
$this->registerFailureType(MinkException::class);
$this->initMink();
// Set up the browser test output file.
$this->initBrowserOutputFile();
// Ensure that the test is not marked as risky because of no assertions. In
// PHPUnit 6 tests that only make assertions using $this->assertSession()
// can be marked as risky.
$this->addToAssertionCount(1);
}
```
In particular,
```
// Install Drupal test site.
$this->prepareEnvironment();
$this->installDrupal();
```
Why is this interesting? Well, on the Chrome driver logs I'm seeing the following:
```
[1717864444.039][DEBUG]: DevTools WebSocket Response: Page.getFrameTree (id=30) (session_id=DFB171623C6AD0FD50AE0D2C08195426) 0A012DB02731872ED0B91131E95AB5F4 {
"frameTree": {
"frame": {
"adFrameStatus": {
"adFrameType": "none"
},
"crossOriginIsolatedContextType": "NotIsolated",
"domainAndRegistry": "lndo.site",
"gatedAPIFeatures": [ ],
"id": "0A012DB02731872ED0B91131E95AB5F4",
"loaderId": "D4966004B7AA6D4BA7B903A2FC1BE098",
"mimeType": "text/html",
"secureContextType": "InsecureScheme",
"securityOrigin": "http://d10ee.lndo.site",
"url": "http://d10ee.lndo.site/core/install.php"
}
}
}
```
This is odd because as I highlighted above, the Functional JavaScript test, by capacity of it's inheritance model is supposed to `$this->installDrupal();`.
Basically PHPUnit installs it's own database scheme, separate from whatever the default Lando/DDev/Docker database is for your Drupal instance. And it does it for each test suite, at the bare minimum. Not 100% sure if it does it for each single test case, but it works along those broad outlines. The finer-grained details of how many times the database is installed is not relevant here, just the fact that PHPUnit installs the database at least once is.
When I see `install.php` it means that something is still probably amiss in the PHPUnit configuration... because the test cases should be visiting an already-installed Drupal instance, not a yet-to-be installed instance.
Digging into it.
C.U. later
### Wholly molly: Transaction $stack was not empty
Well I didn't see this one coming, certainly out of leftfield it came.
The full error (minus stack trace) is: `PHPUnit\Framework\Exception: PHP Fatal error: Uncaught AssertionError: Transaction $stack was not empty. Active stack: 666487f8d33255.42467631\drupal_transaction in /app/docroot/web/core/lib/Drupal/Core/Database/Transaction/TransactionManagerBase.php:99`
Luckily the first Google result is for [D.O. issue #3405976: Transaction autocommit during shutdown relies on unreliable object destruction order (xdebug 3.3+ enabled)](https://www.drupal.org/project/drupal/issues/3405976)
Scrolling through the comments I see Mondrake mention that a fix is to [disable xdebug's develop mode](https://www.drupal.org/project/drupal/issues/3405976#comment-15621320).
Let's see, what does my Lando say:
```yaml
appserver:
# Lies, deception: tell Lando it's 8.2 instead of 8.3.
# https://github.com/lando/php/issues/77.
type: php:8.2
# https://docs.lando.dev/config/php.html#configuration
xdebug: "debug,develop,coverage"
config:
php: ../lando/resources/php.ini
```
Container:
```bash
www-data@31a2e4846210:/app/docroot$ echo $XDEBUG_MODE
debug,develop,coverage
```
I'm definitely not gonna spend a dollar or two in electricity rebuilding the Docker stack, times are tight!
I go to my trusty Bash test runner for PHPUnit and change `XDEBUG_MODE`:
```bash
# From this :
# export XDEBUG_MODE="debug,develop,coverage"
# To this :
export XDEBUG_MODE="debug"
```
Coverage hasn't been working at all for me lately, so I'll leave it disabled until I get to that particular bone another day.
#### Fixing XDebug fatal error
Before:
```bash
PHPUnit 10.5.20 by Sebastian Bergmann and contributors.
Runtime: PHP 8.3.7
Configuration: /app/docroot/web/core/phpunit.xml.dist
E
Time: 00:37.061, Memory: 12.00 MB
Foo (Drupal\Tests\musica\FunctionalJavascript\Foo)
✘ Cancel expression in rule
┐
├ PHPUnit\Framework\Exception: PHP Fatal error: Uncaught AssertionError: Transaction $stack was not empty. Active stack: 666487f8d33255.42467631\drupal_transaction in /app/docroot/web/core/lib/Drupal/Core/Database/Transaction/TransactionManagerBase.php:99
├ Stack trace:
...
ERRORS!
Tests: 1, Assertions: 0, Errors: 1.
```
After
```bash
PHPUnit 10.5.20 by Sebastian Bergmann and contributors.
Runtime: PHP 8.3.7
Configuration: /app/docroot/web/core/phpunit.xml.dist
.F 2 / 2 (100%)
Time: 01:03.459, Memory: 12.00 MB
Foo (Drupal\Tests\musica\FunctionalJavascript\Foo)
✔ Cancel expression in rule
✘ My first javas script test
┐
├ Behat\Mink\Exception\UnsupportedDriverActionException: Status code is not available from Drupal\FunctionalJavascriptTests\DrupalSelenium2Driver
...
FAILURES!
Tests: 2, Assertions: 5, Failures: 1.
```
Notice the test result goes from `E` to `.F`, which in PHPUnit lingo means the first unit test ran! I must say I was surprised when I saw that dot "pop up".
If you're wondering what version of Xdebug you're running, just do `php -v`, like so:
```
www-data@31a2e4846210:/app/docroot$ php -v
PHP 8.3.7 (cli) (built: Jun 6 2024 01:39:14) (NTS)
Copyright (c) The PHP Group
Zend Engine v4.3.7, Copyright (c) Zend Technologies
with Zend OPcache v8.3.7, Copyright (c), by Zend Technologies
with Xdebug v3.4.0alpha2-dev, Copyright (c) 2002-2024, by Derick Rethans
```
The D.O. issue mentions Xdebug 3.3+, and I'm on 3.4.x, so the version matches the description, along with the database-related fatal error stack trace. Another win for today.
## Conclusion
With the last fix for Xdebug addressed, and all the kinks of getting Chrome up and running for the Drupal Functional JavaScript tests (I really wish they changed the name to something shorter), I am going to wrap up this post.
With this part of the testing infrastructure fully operational I can now finally go around my business of _actually writing software_ as opposed to _infrastructure as software_.
I'm sure these errors will pop up someday again and I'll be glad I posted this here for my future self.
If you have any questions or feedback, make sure to use the comments below!
I will leave here the bash test runner I've been referencing through the post:
{% embed https://gist.github.com/AlexanderAllen/bcb8afa3d5c9ec5c718edbf0fc33bb96.js %}
Here is the current Landofile `.lando.yml` I am using. Notice I am not using Lando's default PHP image. This is because my current version of Lando does not support the latest Lando PHP recipe, so I had to cook my own PHP image in order to get the latest PHP.
{% embed https://gist.github.com/AlexanderAllen/0854a0d3151e784de3608ce458ad975f
%}
If you really want or need to build your own Docker container like I'm doing, just check out the Lando issue I'm referencing at https://github.com/lando/php/issues/77. It contains pretty much the `Dockerfile` I'm using in the `build` parameter. I'm not pushing it (the image is massive), so you'll literally have to build instead of pulling if you go that route.
For the Lando tooling in `.lando.base.yml`, the relevant config is:
```yaml
# Call PHPUnit from the directory that contains Drupal core /vendor.
# It's where bootstrap.php expects to be called from.
test:
description: Debug PHPUnit
dir: /app/docroot
cmd:
- appserver: ./test-lando
```
That's it for today, [Brooklyn sends its regards](https://youtu.be/SnKPz2acsBk?si=D70z8rxqtggZWfuz)!
| drupalista |
1,881,118 | pip Trends newsletter | 8-Jun-2024 | This week's pip Trends newsletter is out. Interesting stuff by Socket Inc, Katherine Michel, Jason... | 0 | 2024-06-08T06:01:17 | https://dev.to/tankala/pip-trends-newsletter-8-jun-2024-1098 | webdev, programming, python, ai | This week's pip Trends newsletter is out. Interesting stuff by Socket Inc, Katherine Michel, Jason Brownlee, Stephen David-Williams, Bill Chambers, Miguel Grinberg, Ewho Ruth, John Loewen & Kanwal Mehreen are covered this week
{% embed https://newsletter.piptrends.com/p/pycon-us-2024-recap-how-llms-work %} | tankala |
1,880,203 | Are Device-Bound Passkeys AAL2- or AAL3-Compliant? | Introduction Traditional password-based authentication methods are increasingly seen as... | 0 | 2024-06-08T06:00:00 | https://www.corbado.com/blog/nist-passkeys | nist, aal3, aal2, passkeys | ## Introduction
Traditional password-based authentication methods are increasingly seen as outdated and insecure. The National Institute of Standards and Technology (NIST), a leading authority in standards and technology, has recently endorsed synced passkeys, **confirming their compliance with Authentication Assurance Level 2 (AAL2).** This endorsement marks a significant step forward in the adoption of passkeys, offering enhanced security and user convenience.
**_[READ FULL ANALYSIS HERE](https://www.corbado.com/blog/nist-passkeys)_**
## Understanding NIST and Its Role
NIST, part of the U.S. Department of Commerce, sets the gold standard for digital identity and cybersecurity guidelines. Its frameworks influence both public and private sectors globally, ensuring high security and interoperability standards. Although NIST guidelines are not legally binding, they are often adopted by federal agencies and contractors, impacting global cybersecurity practices.
## NIST's Decision on Passkeys
NIST's recent supplement to its Special Publication 800–63B officially recognizes synced passkeys as AAL2-compliant. This endorsement highlights the [phishing-resistant nature of synced passkeys](https://www.corbado.com/blog/passkeys-phishing-resistant) and their suitability for secure authentication processes. Device-bound passkeys, on the other hand, meet the stricter AAL3 standards due to their higher security requirements.
## Why This Decision Matters
NIST's endorsement is crucial for several reasons:
**1. Global Trust and Influence:** NIST's guidelines are trusted worldwide. Their endorsement of passkeys will likely accelerate global adoption, particularly in regulated industries such as banking and healthcare.
**2. Enhanced Security:** Synced passkeys offer a robust security alternative to traditional passwords, reducing the risk of phishing attacks and unauthorized access.
**3. User Experience:** Beyond security, passkeys improve the user experience by simplifying the authentication process and supporting easy recovery mechanisms.
## Analysis of NIST SP 800–63B Supplement
The supplement outlines specific criteria for AAL2 and AAL3 compliance:
- **Authenticator Assurance Levels (AALs):** These levels measure the robustness of authentication processes. AAL2 involves two-factor or multi-factor authentication, while AAL3 requires multi-factor authentication with hard cryptographic proof of identity.
- **Synced Passkeys:** Recognized for their [phishing resistance](https://www.corbado.com/blog/passkeys-phishing-resistant), synced passkeys meet AAL2 requirements by ensuring secure and encrypted transmission of authentication data.
- **Device-Bound Passkeys:** These meet AAL3 standards due to their hardware-based authentication, providing very high confidence in the control of authenticators.
## Key Requirements for Synced Passkeys
To achieve AAL2 compliance, synced passkeys must:
1. **Utilize Proper Cryptography**: All keys must be created using recognized cryptographic methods.
2. **Ensure Private Key Security**: Private keys must be encrypted and securely stored.
3. **Local Authentication**: Authentication processes must involve actions using the private key on the local device.
4. **Secure Cloud Access**: Access to synced private keys in the cloud must be protected by multi-factor authentication.
5. **Documentation**: Deployment requirements for synced passkeys must be documented and communicated clearly.
## Implications for Developers and Product Managers
For developers and product managers, NIST's guidelines provide a clear framework for implementing secure passkey authentication. Adopting synced passkeys can enhance security, meet regulatory requirements, and improve user experience. It is important to configure WebAuthn properties correctly to ensure compliance and mitigate potential threats.
## Global Perspective on Passkeys
While NIST leads the way, other governmental agencies are also recognizing the importance of passkeys:
- **European Union (ENISA):** ENISA acknowledges FIDO as an authentication standard.
- **UK (NCSC):** The NCSC predicts a decline in password use, viewing passkeys as a modern solution.
- **Germany (BSI):** The BSI supports passkeys as a standard for authentication.
## Conclusion
NIST's recognition of synced passkeys as AAL2-compliant is a milestone in digital authentication. This endorsement not only boosts the security framework but also paves the way for broader adoption of passkeys across various sectors. As other regulatory bodies follow suit, the future of passwordless authentication looks promising.
**Find the [detailed analysis on our blog](https://www.corbado.com/blog/nist-passkeys).**
By aligning with these guidelines, organizations can ensure high security standards and enhance user trust in their authentication systems. | vdelitz |
1,881,117 | What Are the Challenges of P2P Crypto Exchange Development? | Peer-to-peer (P2P) currencies have become more popular and offer users a decentralized way to trade... | 0 | 2024-06-08T05:49:36 | https://dev.to/vennai89/what-are-the-challenges-of-p2p-crypto-exchange-development-3711 | Peer-to-peer (P2P) currencies have become more popular and offer users a decentralized way to trade digital currencies without intermediaries. If you are considering developing a P2P crypto exchange, here are ten key points to guide you through the process.
**Understanding P2P Crypto Exchanges
**A P2P crypto exchange is a platform where buyers and sellers trade cryptocurrencies directly with each other. Unlike traditional exchanges, P2P platforms do not hold funds or trade assets on behalf of users. Instead, they provide a secure environment for users to interact and trade independently.
**Identify your target market
**Determine who uses your platform. Are you targeting experienced traders, beginners or a specific geographic area? Understanding your audience helps tailor the platform's features, user interface and support services to their needs. This step is critical to ensure user satisfaction and market relevance.
**Respect for regulations
**Navigating the legal environment is essential. Different countries have different cryptocurrency business regulations. To avoid legal trouble, make sure your platform complies with relevant laws and guidelines. This may include registration with financial institutions, implementation of KYC (Know Your Customer) and AML (Anti-Money Laundering) procedures.
**Choosing the right technical stack
**Choose a strong technical stack to develop your exchange. Common choices include programming languages like Python or JavaScript and blockchain technologies like Ethereum or Bitcoin. Your technology stack should ensure security, scalability and efficiency so that the platform can handle large events smoothly.
**Security Measures
**Security is paramount in P2P exchange. Enable advanced security features such as two-factor authentication (2FA), end-to-end encryption and multi-signal wallets. Regular information security checks and updates are necessary to protect users' money and data from cyber threats.
**User-friendly interface**
User-friendly interface attracts and retains users. Design your platform with intuitive navigation, clear instructions and responsive design. Providing a smooth user experience will encourage more users to trade on your platform, increasing its popularity and usage.
**Payment Methods**
Provide multiple payment methods to meet different user preferences. Common options include bank transfers, credit/debit cards and other cryptocurrencies. Offering different payment methods can make your platform more accessible and convenient for users, improving its appeal.
**Escrow Services**
Integrate an escrow service to protect transactions. In P2P exchanges, escrow holds the cryptocurrency until the terms of the transaction, confirmed by both parties, are met. This minimizes the risk of fraud and increases trust between users, ensuring a smoother business.
**Customer Support**
Reliable customer support is crucial. Provide multiple support channels such as live chat, email and phone support. Responding to user questions and issues increases user satisfaction and trust in your platform. Providing comprehensive FAQs and guides can also help users navigate the platform.
**Marketing and Community Building**
Once your platform is developed, focus on marketing and community building. Use social media, crypto forums and online advertising to reach potential users. Connecting with the crypto community through events, webinars and discussions can also increase your platform's visibility and reputation.
**Conclusion**
Developing a P2P crypto exchange requires careful planning and implementation. Focusing on these ten key areas - understanding P2P exchanges, identifying the market, ensuring regulatory compliance, choosing the right technology, implementing strong security measures, creating a user-friendly interface, offering versatile payment methods, integrating lock-in options, offering excellent. an agreement customer support and marketing effectively.
 | vennai89 | |
1,881,116 | What is Amazon RDS (Relational Database Service)? | Amazon Relational Database Service (RDS) is a managed relational database service provided by Amazon... | 0 | 2024-06-08T05:35:54 | https://dev.to/devops_den/what-is-amazon-rds-relational-database-service-22ld | Amazon Relational Database Service (RDS) is a managed relational database service provided by Amazon Web Services (AWS). It simplifies the setup, operation, and scaling of relational databases in the cloud.
Useful AWS RDS CLI Commands:
Create a DB Instance:
```
aws rds create-db-instance --db-instance-identifier <identifier> --db-instance-class <class> --engine <engine> --master-username <username> --master-user-password <password> --allocated-storage <size>
```
Delete a DB Instance:
```
aws rds delete-db-instance --db-instance-identifier <identifier> --skip-final-snapshot
```
Modify a DB Instance:
```
aws rds modify-db-instance --db-instance-identifier <identifier> --apply-immediately --db-instance-class <new-class>
```
Describe DB Instances:
```
aws rds describe-db-instances --db-instance-identifier <identifier>
```
Reboot a DB Instance:
```
aws rds reboot-db-instance --db-instance-identifier <identifier>
```
Create a DB Snapshot:
```
aws rds create-db-snapshot --db-snapshot-identifier <snapshot-identifier> --db-instance-identifier <instance-identifier>
```
Describe DB Snapshots:
```
aws rds describe-db-snapshots --db-snapshot-identifier <snapshot-identifier>
```
Restore DB Instance from Snapshot:
```
aws rds restore-db-instance-from-db-snapshot --db-instance-identifier <new-instance-identifier> --db-snapshot-identifier <snapshot-identifier>
```
Create a Read Replica:
```
aws rds create-db-instance-read-replica --db-instance-identifier <replica-identifier> --source-db-instance-identifier <source-identifier>
```
Promote Read Replica:
```
aws rds promote-read-replica --db-instance-identifier <replica-identifier>
```
Read More and Learn More about [AWS](https://devopsden.io/) | devops_den | |
1,881,115 | The Role of a C-Rank Executive in Corporate Operations | Introduction: In the intricate machinery of a corporation, the C-rank executives—commonly... | 0 | 2024-06-08T05:35:01 | https://dev.to/nandha_krishnan_nk/the-role-of-a-c-rank-executive-in-corporate-operations-3087 | softwareengineering, softwaredevelopment, computerscience, startup | **Introduction**:
In the intricate machinery of a corporation, the C-rank executives—commonly referred to as C-suite executives—play pivotal roles in steering the company towards its strategic goals. The "C" in C-suite stands for "Chief," and the ranks typically include positions like Chief Executive Officer (CEO), Chief Operating Officer (COO), Chief Financial Officer (CFO), and Chief Information Officer (CIO). Each of these roles has distinct responsibilities, yet they work in unison to ensure the company's success. Let's delve into the specific functions and usage of these positions within a company.
**Chief Executive Officer (CEO)**:
**Role and Responsibilities:**
The CEO is the highest-ranking executive in a company, responsible for the overall vision, strategy, and direction of the organization. They act as the primary liaison between the board of directors and the company’s operational activities.
**Key Functions:**
**Vision and Strategy:** Setting the long-term goals and strategic direction.
**Leadership:** Inspiring and leading the executive team and employees.
**Decision Making:** Making high-stakes decisions that affect the company's growth and sustainability.
**Stakeholder Communication:** Representing the company to shareholders, government bodies, and the public.
**Usage in the Company:**
The CEO’s strategic vision and leadership influence every aspect of the company, from product development and marketing strategies to employee engagement and corporate culture. Their decisions can pivot the company towards new markets, innovations, and revenue streams.
**Chief Operating Officer (COO):**
**Role and Responsibilities:**
The COO oversees the day-to-day administrative and operational functions of the business. They report directly to the CEO and often serve as the second-in-command.
**Key Functions:**
**Operational Management:** Ensuring efficient and effective operations.
**Process Optimization:** Streamlining processes to enhance productivity.
**Project Management:** Overseeing major projects and initiatives.
**Performance Monitoring:** Tracking key performance indicators (KPIs) to ensure targets are met.
**Usage in the Company:**
The COO’s focus on operations ensures that the company's strategic plans are executed efficiently. They bridge the gap between high-level strategy and ground-level implementation, making sure that resources are allocated effectively and operations run smoothly.
**Chief Financial Officer (CFO)**
**Role and Responsibilities:**
The CFO is responsible for managing the company’s financial actions, including financial planning, management of financial risks, record-keeping, and financial reporting.
**Key Functions:**
**Financial Planning and Analysis:** Developing and overseeing the company's financial strategy.
**Budget Management:** Managing the company’s budget and financial forecasts.
**Financial Reporting:** Ensuring accurate and timely financial statements.
**Risk Management:** Identifying and mitigating financial risks.
**Usage in the Company:**
The CFO plays a crucial role in ensuring the company’s financial health. Their work informs investment decisions, cost management, and financial strategies that support the company’s growth and stability.
**Chief Information Officer (CIO):**
**Role and Responsibilities:**
The CIO is responsible for the technological direction of the company. They oversee the implementation of IT systems and ensure that the company’s technology strategy aligns with its business goals.
**Key Functions:**
**Technology Strategy:** Developing and implementing the IT strategy.
**System Management:** Overseeing the maintenance and security of IT infrastructure.
**Innovation: **Introducing new technologies to improve business processes.
**Data Management:** Ensuring the integrity and security of data.
**Usage in the Company:**
The CIO ensures that the company stays competitive by leveraging technology. They facilitate digital transformation, enhance cybersecurity, and improve data analytics, thus driving efficiency and innovation across the organization.
**Conclusion**:
C-rank executives are the cornerstone of any successful corporation. Their distinct yet complementary roles ensure that the company operates efficiently, remains financially sound, leverages technology effectively, and stays on course towards its strategic goals. Understanding the importance and functions of these positions provides insight into the complex yet fascinating world of corporate operations, highlighting the critical impact of leadership on a company’s success.
| nandha_krishnan_nk |
1,881,114 | 10 BEST MOVIES ABOUT A.I. YOU SHOULDN’T MISS | Artificial Intelligence (AI) is one of the most talked about and controversial topics of our time... | 0 | 2024-06-08T05:34:09 | https://www.cinemablind.com/best-movies-about-ai/ | ai |
Artificial Intelligence (AI) is one of the most talked about and controversial topics of our time as it is quickly being developed by organizations like OpenAI, Microsoft, and Google. People are afraid that it will take their jobs and in some cases it already has, it was also a big part of the 2023 writers and actors strike but don’t forget that AI has also been the topic of some of the greatest films ever made more recently it became the main villain in Tom Cruise‘s action-adventure film Mission: Impossible – Dead Reckoning Part 1. So, we compiled a list of the 10 best films featuring AI that show us artificial intelligence in different lights including villainous and sympathetic roles.
**A.I. ARTIFICIAL INTELLIGENCE (MGM+, PARAMOUNT+ & RENT ON PRIME VIDEO)
**
A.I. Artificial Intelligence is a sci-fantasy film written and directed by Steven Spielberg. Based on a 1969 short story titled Supertoys Last All Summer Long by author Brian Aldiss, the 2001 film is set in a futuristic society and it follows a robot in the form of a boy with human feelings who lives happily as David with his adoptive mother Monica, whose son was put in “cryo-stasis” because of an incurable disease but when Monica’s real son returns, David’s life takes a turn that sends him on a journey for the quest of love. A.I. Artificial Intelligence stars Haley Joel Osment in the lead role with Jude Law, Brendan Gleeson, Sam Robards, William Hunt, Daveigh Chase, Frances O’Connor, Ben Kingsley, Robin Williams, Enrico Colantoni, Ken Leung, and Jake Thomas starring in supporting roles.
**EX MACHINA (MAX & RENT ON PRIME VIDEO)
**
Ex Machina is a sci-fi thriller film written and directed by Alex Garland. The 2014 film follows the story of Caleb Smith, a young programmer as he gets a chance to take part in a scientific experiment at his boss’ private mountain estate. When he gets there he is tasked with assessing a highly advanced artificial intelligence in the form of a beautiful woman. Ex Machina stars Domhnall Gleeson, Alicia Vikander, and Oscar Isaac in the lead roles with Sonoya Mizuno, Claire Selby, Corey Johnson, Gana Bayarsaikhan, and Tiffany Pisani starring in supporting roles.
**BLADE RUNNER 2049 (RENT ON PRIME VIDEO)
**
Blade Runner 2049 is a neo-noir sci-fi thriller film directed by Denis Villeneuve from a screenplay co-written by Hampton Fancher and Michael Green. Based on the characters from Do Androids Dream of Electric Sheep? by author Philip K. Dick, the 2017 film serves as a direct sequel to the 1982 film Blade Runner by Ridley Scott. Blade Runner 2049 is set 30 years after the events of the first film and it follows the story of K, (an android in the form of a human known as a replicant) who works for the Los Angeles Police Department, as he finds something that could create chaos in the whole world. To get more information he must find a former blade runner who went missing 30 years ago. Blade Runner 2049 stars Ryan Gosling in the lead role with Harrison Ford, Ana de Armas, Sylvia Hoeks, Mackenzie Davis, Jared Leto, Robin Wright, David Bautista, Carla Juri, and David Dastmalchian starring in supporting roles.
| cinemablind |
1,881,113 | Top 5 Career Options after Engineering – What to do after B.Tech? | B. Tech (Bachelor in Technology) is a popular course in India with millions of students graduating as... | 0 | 2024-06-08T05:32:50 | https://dev.to/sumit_2f7b895defa191cff9b/top-5-career-options-after-engineering-what-to-do-after-btech-20dh |
B. Tech (Bachelor in Technology) is a popular course in India with millions of students graduating as engineers every year. The most important question that lurks in the mind of each student after B. Tech. is what to do next. This is a million-dollar question and the answer to this question is not as simple as it may seem.
After completing B.Tech there is a wide world of options available to a student.
One of the best ways to decide what to do next is to sit down and assess all your options. Consider what you are passionate about and what will help you achieve your long-term goals. If you are unsure about what you want to do, take some time to explore different options and speak to others who have been in your position before.
But don't worry, we're here to help! In this blog post, to help make your task easier and clear all your doubts, we’ll take a look at the top 5 career options after B.Tech you could choose from.
The top 5 career options after B.Tech
There are many different career paths that you can take with a B.Tech degree in India. Some of the popular options a B.Tech student or graduate can take are:
Higher Studies after B. Tech
Nowadays the combination of MBA (Master in Business Administration) and B. Tech. is highly sought after by companies. Top management positions are bagged by students from premium government and private management institutes like IIM and SGT University, Gurgaon. To get into these colleges, one needs to clear the CAT (Common Aptitude Test) exam. After completing B. Tech. one can also pursue M. Tech. and MSc programs. This option is better for those looking to further specialize in a field of engineering and pursue research interests or more in-depth knowledge.
One needs to clear the GATE (Graduate Aptitude Test in Engineering) exam to enter IITs and NITs for M. Tech. For the Master of Science (MSc) course, one needs to clear the JAM examination for admission into top Indian Colleges offering that course.
Job at a PSU (Public Sector Undertaking)
Another popular option after B.Tech taken by many students is jobs at PSUs (Public Sector Undertakings) like BHEL, LIC, HPC, etc. Since PSUs are partially owned by the state or central government, in some cases both, these jobs are generally considered government jobs. PSU jobs offer a lucrative career option with a lot of the same perks that are associated with a civil services job.
There are two routes to get a job at a PSU in India. One is to clear the GATE exam, and the other is without it (clearing a separate exam for such PSUs).
Some of the PSUs that accept GATE scores:
BHEL
DRDO
IOCL
NTPC
Some of the PSUs that don’t need a GATE score:
Airport Authority of India
Border Security Force (BSF)
National Mineral Development Corporation (NMDC)
Reserve Bank of India (RBI)
Preparing for Civil Services Entrance Exam
A career in civil services is a prestigious career option for many after engineering. It is also one of the most challenging exams in the country. The CSS is a difficult exam and most candidates who attempt it fail. But the rewards for success are great. Civil servants who pass the CSS can work in the government sector and have a significant impact in the way the country is run.
One can hold prestigious jobs like IAS, IFA, and IPS after clearing the UPSC examination. Since it is a highly competitive exam, it is recommended that a student starts preparing for it from the second year of their B.Tech journey.
Job in the Private Sector
There are many wonderful opportunities for recent engineering graduates in the private sector. With the skills and experience after a four-year degree, one is ready to take on any challenge that comes their way. Whether one is looking for a full-time position, a contract position, or a freelance opportunity, there is a position available to match their skills and experience. Private sector jobs are usually high-paying jobs with a lot of scope for career growth.
Some of the popular private sector jobs one takes after B. Tech in fields like Computer Science, Civil Engineering, and Electrical Engineering & Mechanical Engineering are:
Computer Systems Engineer
Database Administrator
Electrical Manager
Electronics Technician
Mechanical Engineer
Network Engineer
Researcher
Software Engineer
Maintenance Engineer
Entrepreneurship
The world of entrepreneurship is full of opportunity, and there are many ways to get started on this journey after B.Tech. One can launch their own business, or work as a consultant or a freelancer. A few things to keep in mind before venturing into your own business are:
You should have a clear goal & vision for the business.
You need to be passionate about what you’re creating, and be willing to give it all for making it a success.
You’ll need to be strong-minded and a problem-solver.
You’ll need to be able to come up with novel ideas and solve difficult challenges.
You’ll need to be able to work hard, stay focused and be accountable to yourself.
With a little effort and luck, one can make a lasting impact in the world of entrepreneurship.
Best College for Engineering Courses in Delhi NCR and Gurgaon
SGT University is one of the best colleges in Delhi NCR and Gurgaon for B.Tech courses. The Faculty of Engineering and Technology at SGT has some of the most distinguished professors of Engineering in India. The placement record is also excellent with most students being placed at highly reputable MNCs after graduation.
The following is the list of B.Tech courses offered at SGT University:
[B. Tech in Civil Engineering](https://sgtuniversity.ac.in/engineering/programmes/b-tech-in-civil-engineering)
B. Tech in Artificial Intelligence & Machine Learning
B. Tech in Cloud Computing
B. Tech in Computer Science & Engineering
B. Tech in Electronics & Communication Engineering
B. Tech in Mechanical Engineering
To know more about the Faculty of Engineering at SGT University, click on this link.
Source:-(https://sgtuniversity.ac.in/)
| sumit_2f7b895defa191cff9b | |
1,881,112 | summer 2024 june | This is a submission for Frontend Challenge v24.04.17, CSS Art: June. Inspiration As... | 0 | 2024-06-08T05:29:56 | https://dev.to/omprakash2929/summer-2024-june-4d35 | frontendchallenge, devchallenge, css | _This is a submission for [Frontend Challenge v24.04.17](https://codepen.io/omprakash2929/pen/OJYjRem), CSS Art: June._
## Inspiration
As India enters the summer of 2024, it's becoming increasingly clear how crucial tree cover is to our environment. Looking back at the past, when lush greenery was more widespread, we can see a stark contrast to the present, where the decrease in tree cover has resulted in severe heat waves and environmental challenges.
The Past: In previous decades, the Indian landscape was adorned with vast forests and urban greenery, and trees played a crucial role in moderating temperatures, providing shade, and maintaining ecological balance.
Cooler temperatures: Trees absorb sunlight and release moisture into the air through transpiration, significantly cooling the surroundings.
Cleaner air: They act as natural air filters, trapping dust, pollutants, and producing oxygen.
Healthier ecosystems: Forests support biodiversity, providing habitat for countless species and maintaining soil health.
The present: Reduced tree cover and its effects.
Today, rapid urbanization and deforestation have drastically reduced the number of trees across India. This loss has led to numerous adverse effects:
Rising Temperatures: Without sufficient tree cover, urban areas experience the "urban heat island" effect, where concrete and asphalt absorb and retain heat.
Increased Pollution: Fewer trees mean less filtration of pollutants, leading to poorer air quality.
Biodiversity Loss: The destruction of habitats has resulted in the decline of many plant and animal species.
The Way Forward
Understanding the critical role of trees in combating climate change and mitigating heat waves is imperative. To ensure a sustainable future, we must:
Plant More Trees: Engage in massive afforestation and reforestation projects.
Protect Existing Forests: Implement and enforce laws to prevent illegal logging and deforestation.
Urban Greening: Encourage green city spaces, such as parks, green roofs, and community gardens.
## Demo
{% embed https://codepen.io/omprakash2929/pen/OJYjRem %}
## Journey
My Process
Creating the inspirational text and HTML/CSS design involved several key steps:
Understanding the Requirements:
The first step was to clearly understand the user's request to create a design highlighting the impact of tree cover on summer heat in India, contrasting the past with the present.
Drafting the Content:
I composed an inspirational message that reflects on the historical significance of tree cover, the current issues due to deforestation, and a call to action for the future.
Designing the HTML Structure:
The next step was to structure the content in HTML, ensuring it's logically organized and easy to read.
Styling with CSS:
I applied CSS to enhance the visual appeal of the content, focusing on readability, aesthetics, and highlighting important points.
Iterative Improvements:
Finally, I reviewed and refined both the text and the code, ensuring clarity, coherence, and functionality.
What I Learned
Impact of Trees: Researching and writing about the role of trees in climate regulation reinforced my understanding of their importance in maintaining ecological balance.
Content Structuring: Balancing detailed information with readability is crucial. Breaking down the content into clear, concise sections helps in better communication.
HTML and CSS Styling: Revisiting foundational web development skills reminded me of the importance of clean, semantic HTML and effective CSS styling for presenting information.
Things I Am Particularly Proud Of
Clarity and Impact: I am proud of how the inspirational text turned out, effectively communicating the critical message about the importance of trees.
Visual Design: The final HTML and CSS design is clean, visually appealing, and enhances the readability and impact of the content.
Responsive Layout: Ensuring that the design is responsive and looks good on various devices is a crucial aspect that was successfully implemented.
What I Hope to Do Next
Interactive Elements: In future iterations, I hope to incorporate interactive elements, such as animations or interactive infographics, to make the message even more engaging.
Deeper Research: Diving deeper into specific case studies or data related to deforestation and its impacts in India could add more depth to the content.
Broader Campaigns: Expanding this concept into a broader campaign, including social media strategies and community engagement tools, could amplify the impact and reach of the message.
| omprakash2929 |
1,881,001 | What is the difference between type vs interface in Typescript | Common Both can define a data type. Types aliases in Typescript mean "a new for any... | 0 | 2024-06-08T05:25:35 | https://dev.to/xuanmingl/what-is-the-difference-between-type-vs-interface-in-typescript-2f1i | typescript, webdev, keyword, difference | ## Common
Both can define a data type.
Types aliases in Typescript mean "a new for any type".
```typescript
type MyNumber = number;
type StringOrNumber = string | number;
type User = {
id: number;
name: string;
email: string;
}
```
An interface defines a contract that an object must adhere to.
```typescript
interface Person {
name: string;
address: string;
}
```
## Difference
### 1. Primitive Type
Primitive types are inbuilt types in TypeScripts. They include number, string, boolean, null, and undefined types.
Type alias can be used to define a alias for a primitive type as below.
```typescript
type MyString = string;
type NullOrUndefined = null | undefined;
```
But, interface can not be used to define a alias for a primitive type.
### 2. Union types
Union types can describe values that can be one of several constant and create unions of various primitive, literal or complex types.
```typescript
type Computer = 'Desktop' | 'Laptop' | 'Tablet';
```
Union type can only be defined using type. Interface cannot define a union type. But it is possible to create a new union type from several interfaces:
```typescript
interface Laptop {
cpu: string;
ram: number;
storage: number;
}
interface SmartPhone {
number: string;
}
type Mobile = Laptop | Phone;
```
## 3. Function types
In Typescript, a function type represents a function's prototype. Type alias defines function prototype like this:
```typescript
type Add = (num1: number, num2: number) => number;
```
You can also use an interface to do samething:
```typescript
interface IAdd {
(num: number, num2: number): number;
}
```
As you can see both type and interface are similar except for a syntax difference. And type is preferred to define a function prototype.
It is also because type has more capability to define function type. Here's an example:
```typescript
type Watch = 'Mechanical' | 'Electrical';
type WindUp = (cycle: number) => void;
type Recharge = () => void;
type RefillWatch<W extends Watch> =
W extends 'Mechanical' ?
WindUp : W extends 'Electrical' ?
Recharge : never;
const windUp: RefillWatch<'Mechanical'> = (watch, cycle) => {
// Something to wind up the spring of the watch
}
const recharge: RefillWatch<'Electrical'> = (watch) => {
// Something to charge the watch
}
```
## 4. Merging of declarations
Merging of declarations is a feature for only interface.
```typescript
interface Computer {
cpu: string;
}
interface Computer {
ram: string;
}
const mine: Computer = {
cpu: 'Core i-9 9900',
ram: '32GB',
};
```
## 5. Extends and intersection
An interface can extend original interface:
```typescript
interface Computer {
cpu: string;
ram: string;
}
interface Laptop extends Computer {
battery: string;
}
```
You can also get same result with type alias:
```typescript
type Computer = {
cpu: string;
ram: string;
}
type Laptop = Computer & {
battery: string;
}
```
You can also extends an interface from a type alias:
```typescript
type Computer = {
cpu: string;
ram: string;
}
interface Laptop extends Computer {
battery: string;
}
```
But you cannot extend an interface from a union type:
```typescript
type Watch = 'Mechanical' | 'Electrical';
interface MoreWatch extends Watch {
brand: string;
}
```
Type aliases can extend interfaces using the intersection like this:
```typescript
interface Watch {
brand: string;
}
Type ElectricWatch = Watch & {
battery: string;
}
```
## 6. Handling conflicts
You cannot extend an interface with same property key like this:
```typescript
interface Watch {
refill: () => void;
}
interface Watch {
refill: (cycle: number) => void;
}
```
But you can extend a type alias with same property key like this:
```typescript
type Person = {
getPermission: (id: string) => string;
};
type Staff = Person & {
getPermission: (id: string[]) => string[];
};
const AdminStaff: Staff = {
getPermission: (id: string | string[]) => {
return (typeof id === 'string' ?
'admin' : ['admin']) as string[] & string;
}
}
```
If you extend a type alias like this, the model property type would not be determined because it can't be both string and number at the same time:
```typescript
type Computer = {
model: string;
};
type Laptop = Computer & {
model: number;
};
// error: Type 'string' is not assignable to type 'never'.(2322)
const mine: Laptop = { model: 'Dell' };
```
## 7. Implementing class
In Typescript, you can implement a class using either an interface or a type alias:
```typescript
interface Person {
name: string;
greet(): void;
}
class Student implements Person {
name: string;
greet() {
console.log('Hello');
}
}
type Pet = {
name: string;
greet(): void;
};
class Cat implements Pet {
name: string;
greet() {
console.log('Mew');
}
}
```
But you cannot implement a class that extends a union type:
```typescript
type Key = { key: number; } | { key: string; };
// can not implement a union type
class PrimaryKey implements Key {
key = 1
}
```
## 8. Tuple type
In Typescript, the tuple type can express an array with a fixed number of elements, while each element has its data type:
```typescript
type State: [name: string; setter: (value: string) => void];
```
If you want to declare a tuple type with an interface, you can do it like this:
```typescript
interface IState extends Array<string | (value: string) => void> {
0: string;
1: (value: string) => void;
}
```
## 9. Benefits of the type alias than the interface
Here's an example of the advanced type feature that the interface cannot achieve:
```typescript
type Person = {
name: string;
address: string;
}
type Getters<T> = {
[K in keyof T as `get${Capitalize<string & K>}`]: () => T[K];
};
type PersonType = Getters<Perso>;
// type PersonType = {
// getName: () => string;
// getAddress: () => string;
// }
```
## Conclusion
In this post, I have explained the features of the type alias and the interface in Typescript.
As above the type alias has more powerful features than the interface. So I recommend to use the type alias when coding. | xuanmingl |
1,881,110 | Array methods | BASIC ARRAY METHODS Array.length // Array length shows how many elements exist in... | 0 | 2024-06-08T05:21:12 | https://dev.to/__khojiakbar__/array-methods-string-methods-38kf | array, methods, javascript | ## **BASIC ARRAY METHODS**
1. **Array.length**
```
// Array length shows how many elements exist in the array
let fruits = ['apple', 'banana', 'cherry', 'date', 'elderberry']
let result = fruits.length;
console.log(result);
```
2. **Array.toString()**
```
// The JavaScript method toString() converts an array to a string of (comma separated) array values.
let fruits = ['apple', 'banana', 'cherry', 'date', 'elderberry']
let result = fruits.toString();
console.log(result);
```
3. **Array.at(index)**
```
// at() returns the element at the specified index
let fruits = ['apple', 'banana', 'cherry', 'date', 'elderberry']
let result = fruits.at(2);
console.log(result);
```
4. **Array.join('whatever')**
```
// join() joins the elements of an array into a string and joins with whatever we insert inside (join()) parentheses
let fruits = ['apple', 'banana', 'cherry', 'date', 'elderberry'];
let result = fruits.join('-')
console.log(result); // => apple-banana-cherry-date-elderberry
```
5. **Array.pop()**
```
// pop() removes the last element from an array and returns that element
let fruits = ['apple', 'banana', 'cherry', 'date', 'elderberry'];
let result = fruits.pop()
console.log(result); // => elderberry
console.log(fruits); // => ['apple', 'banana', 'cherry', 'date'];
```
6. **Array.push()**
```
// Array.push() adds from the end and shows the length
let fruits = ['apple', 'banana', 'cherry', 'date', 'elderberry'];
let result = fruits.push('kiwi');
console.log(result); // => 6 ! returns the length
console.log(fruits); // => ['apple', 'banana', 'cherry', 'date', 'elderberry', 'kiwi']
```
7. **Array.shift()**
```
// shift() deletes from the beginning and returns the deleted element
let fruits = ['apple', 'banana', 'cherry', 'date', 'elderberry'];
let result = fruits.shift();
console.log(result); // => apple
```
8. **Array.unshift()**
```
// unshift() adds from the beginning and returns the new length
let fruits = ['apple', 'banana', 'cherry', 'date', 'elderberry'];
let result = fruits.unshift('pear');
console.log(result); // => apple
console.log(fruits); // => ['pear', 'apple', 'banana', 'cherry', 'date', 'elderberry']
```
9. **delete array[index]**
```
// delete leaves empty holes in the array therefore use push() or pop()
let fruits = ['apple', 'banana', 'cherry', 'date', 'elderberry'];
delete fruits[1];
console.log(fruits); // => ['apple', empty, 'banana', 'cherry', 'date', 'elderberry']
```
10. **concat()**
```
// The concat() method creates a new array by merging (concatenating) existing arrays:
const myGirls = ["Cecilie", "Lone"];
const myBoys = ["Emil", "Tobias", "Linus"];
const myChildren = myGirls.concat(myBoys);
```
11. **array.flat()**
```
// The flat() method creates a new array with sub-array elements concatenated to a specified depth.
const myArr = [[1,2],[3,4],[5,6]];
const newArr = myArr.flat();
console.log(newArr); // => [1,2,3,4,5,6]
```
12. **array.splice()**
```
let fruits = ['apple', 'banana', 'cherry', 'date', 'elderberry'];
fruits.splice(2, 0, 'kiwi') // => ['apple', 'banana', 'kiwi', 'date', 'elderberry'];
console.log(fruits);
```
12. **array.slice()**
```
let fruits = ['apple', 'banana', 'cherry', 'date', 'elderberry'];
let result = fruits.slice(2, 3) // => ['cherry']
console.log(result);
```
| __khojiakbar__ |
1,881,105 | Partnering with Shenzhen Yaopeng Metal Products Co., Ltd for Reliable Supply | Are you currently looking, high-quality metal products from the reliable supplier? Look no further... | 0 | 2024-06-08T05:17:32 | https://dev.to/amanda_andersongh_189c006/partnering-with-shenzhen-yaopeng-metal-products-co-ltd-for-reliable-supply-4464 | design | Are you currently looking, high-quality metal products from the reliable supplier? Look no further than Shenzhen Yaopeng Metal Products Co., Ltd! Partnering with Yaopeng could bring numerous advantages to your internet business, including innovation, safety, and client exemplary service. Let's have a closer look at the advantages of dealing with Yaopeng.
Advantages:
Using the services of Yaopeng will offer you and a competitive edge in their markets. Yaopeng's experienced team is focused on producing high-quality metal according to your unique specifications. With more than ten years of experience in manufacturing and exporting metal worldwide, Yaopeng has built the solid reputation the marketplace. Yaopeng has a range of products available, like custom metal stamping parts, CNC machening service, and sheet metal fabrication.
H50f17449d0fa40d29c8e52ab2f9c0f32D_11zon.jpg
Innovation:
Yaopeng uses cutting-edge technologies and equipment to create innovative metal. They are increasing their procedures to ensure they are producing the quality highest cnc machining products. Their team of engineers and developers will always focus on the latest ideas and concepts to meet up the evolving demands of users.
Safety:
Yaopeng places great emphasis on safety once creating metal products. They ensure which their products fulfill all safety requirements and regulations before releasing them to your marketplace. It is possible to be confident that after your partner and Yaopeng, you are providing safe and reliable products for any visitors.
Use:
Yaopeng's metal products can be utilized in a true number of companies, from automotive and aerospace to electronics and medical equipment. Their products will also be suitable for use in domestic items such as kitchenware and furniture.
How to use:
Making use of Yaopeng's metal products is easy! They give you comprehensive user manuals and technical help make sure that you are employing their products correctly. If you encounter any nagging dilemmas or have questions, their customer service group is open to help you.
Service:
Yaopeng's exemplary customer service is one of these key talents. They've been focused on supplying outstanding service to their clients and help. Through the initial consultation to after-sales service, Yaopeng implies that you're pleased using their turning machining products and solutions.
Quality:
Yaopeng has the strict qualification process to be sure that their cnc metal products satisfy higher criteria. They use better the quality highest content and employ skilled workers to build their metal products. They conduct extensive testing to make sure that their cnc bending services are durable and reliable.
Application:
Yaopeng's metal products have a wide range of applications, including automotive parts, medical gear, electronic equipment, and more. They may be able additionally be utilized in the construction of buildings and machinery. | amanda_andersongh_189c006 |
1,881,104 | What real Success is? | • having Purpose • being a Good person • taking care of your Family • making an Impact • owning your... | 0 | 2024-06-08T05:16:39 | https://dev.to/chamber_dicky_355a4345e4f/what-real-success-is-44oe | • having Purpose
• being a Good person
• taking care of your Family
• making an Impact
• owning your Time | chamber_dicky_355a4345e4f | |
1,881,101 | Python Basics 2: Datatypes | Datatype: Every value in Python has a datatype. The datatype is mainly the category of the data.... | 0 | 2024-06-08T05:11:30 | https://dev.to/coderanger08/python-basics-2-datatypes-3b1m | python, programming, beginners, tutorial | **Datatype:**
Every value in Python has a datatype. The datatype is mainly the category of the data. There are basically 5 categories of datatypes; however, these categories have further classifications as well.
**_1.Numeric Type:_**
**a) Integer (int):** positive or negative whole numbers (without a fractional part). Example: 10,-3,10000
**b) Floating point (float):** Any real numbers with 'decimal' points or floating point representation.
Example: -3.14, 10.23
**c) Complex Number:** Combionation of real and imaginary number. Example: 2+3i [we don't use this that much]
**_2.Boolean Type(bool):_** Data with one of the two built-in values True or False. Often used in the comparison operations of logical statements.
Example:
```
x=10
y=15
print(y>x)
#output: True
```
**_3.Sequence Type:_** A sequence is an **ordered** collection of similar or different data types.
**a)String(str):** It is a sequence of ordered characters (alphabets-lower case, upper case, numeric values, special symbols). String is represented with quotation marks (single('), double(''), triple(' ' ', '' '''')).
For example:
using single quotes ('python'),
double quotes ("python") or
triple quotes ('''python''' or """python""")
**b)List:** It is an ordered collection of elements where the elements are separated with a comma (,)and enclosed within square brackets [].
The list can have elements with more than one datatypes.
For example:
i) list with only integers; x= [1, 2, 3] and
ii) a list with mixed data types; y= [110, "CSE110",12.4550, [], None]. Here, 110 is an integer, "CSE110" is a string, 12.4550 is a float, [] is a list, None is NoneType.
**c)Tuple:** It is an ordered collection of elements where the elements are separated with a comma (,) and enclosed within parenthesis().
Example: x= ("apple", "banana", Cherry")
List and Tuple are used to contain multiple values in a single variable.
**Basic difference between List and Tuple:** You can change the values of a list(mutable) but you can't do the same with tuple(immutable) [more about this in later series]
**_4) Mapping Type:_**
**Dictionary:** It's an **unordered** collection of data. It's written as key:value pair form.
Example:
```
cardict= {'brand' : 'Lamborghini' , 'model': 'Aventader', 'year'=2018}
#key #value
print (cardict['model'])
#Output:Avantader
```
**_5)Nonetype(None):_**It refers to a null value or no value at all. It's a special data type with a single value, None.
**Type Function:**
Type() function returns the type of argument(object) passed as a parameter. It's mainly used for debugging(Code correcting) purpose.
To know the type of a variable just write type(variable name)
```
text="Python is awesome"
print(type)
#output:<class 'str'>
```
Example:
type("Hello python") #output: str
type(2024) #output: int
type(3.14) #output: float
type(True) #output: bool
type(None) #output: NoneType
**isinstance function:**
The isinstance() function checks if an object belongs to a specified class or data type.
In the code:
`isinstance(myfloat, float) `
This checks if the variable myfloat is an instance of the float class. If it is, it returns True, otherwise False.
Similarly, for integers:
`isinstance(myint, int)`
This checks if the variable myint is an instance of the int class.
| coderanger08 |
1,881,103 | Search Engines 2.0: Powered by LLMs and Multilingual Voice Search | Search Engines 2.0: Powered by LLMs and Multilingual Voice Search Imagine a world where... | 0 | 2024-06-08T05:07:08 | https://dev.to/ankala_shreya/search-engines-20-powered-by-llms-and-multilingual-voice-search-45p5 | machinelearning, ai, webdev, tutorial |
## Search Engines 2.0: Powered by LLMs and Multilingual Voice Search
](https://cdn-images-1.medium.com/max/2000/1*fyOrl4H1ywUT2RJIqhSLhg.jpeg)
Imagine a world where search engines understand your queries as a human would, providing answers that are not just relevant but insightful and deeply contextual. This is the world Large Language Models (LLMs) like GPT-4 and their open-source counterparts are ushering in.
In this article, we’ll explore the journey of integrating LLMs into search engines by
· [The Evolution of Search Engines along with Key Technological Advancements](#5397)
· [Integrating LLMs into Search Engines: The Blueprint](#f8dd)
· [Multilingual Voice-Enabled Search with LLM Integration](#bcd5)
· [Importance of LLMs in Search Engines](#b85b)
· [Applications of LLM-Integrated Search Engines Across Various Domains](#7405)
· [Further Exploration](#d1ce)
Integrating Large Language Models (LLMs) into search engines enhances their ability to understand and respond to user queries by providing more accurate and contextual responses. To further improve search engines, continuous model training on new data, incorporating user feedback, and personalizing search results based on user behavior are essential steps. Additionally, integrating multilingual voice search capabilities makes the search experience more accessible and natural for users worldwide. This involves converting spoken queries into text using Automatic Speech Recognition (ASR) systems, processing the text with the LLM, and converting the LLM’s response back to speech using Text-to-Speech (TTS) systems.
## **The Evolution of Search Engines along with Key Technological Advancements**
Traditional search engines rely on keyword matching and link analysis to deliver results. While effective, this approach often falls short of understanding the nuances of human language. Enter LLMs. These models, trained on vast datasets, possess the ability to grasp context, disambiguate meaning, and generate coherent, relevant responses. By incorporating LLMs, search engines can transition from simple keyword-based retrieval systems to sophisticated conversational agents.
> All of the biggest technological inventions created by man — the airplane, the automobile, the computer — says little about his intelligence, but speaks volumes about his laziness. — ***Mark Kennedy***
1. **1990s: Basic Keyword Matching**
Early search engines like AltaVista and Yahoo! used simple keyword-matching algorithms.
Relied on text-based indexing and retrieval systems.
2. **Late 1990s — Early 2000s: PageRank Algorithm**
Google introduced the PageRank algorithm.
Ranked pages based on the number and quality of backlinks, improving result relevance.
3. **Mid 2000s: Semantic Search**
Incorporation of semantic search techniques to understand the context and meaning of queries.
Introduction of knowledge graphs to provide direct answers and related information.
4. **2010s: Machine Learning and Natural Language Processing (NLP)**
Search engines began using machine learning algorithms to improve result accuracy.
NLP techniques enabled a better understanding of user intent and query context.
5. **Late 2010s: Voice Search and Mobile Optimization**
Rise of voice-activated assistants like Siri, Alexa, and Google Assistant.
Search engines optimized for mobile devices and voice queries, focusing on natural language understanding.
6. **2020s: Integration of Large Language Models (LLMs)**
Incorporation of advanced LLMs like GPT-3 and GPT-4 for enhanced context and conversational understanding.
Shift from keyword-based search to conversational and contextual search experiences.
7. **Present: Multimodal and Multilingual Search**
Search engines support multimodal inputs (text, voice, images) and multilingual queries.
Use of advanced AI and LLMs to provide more personalized, accurate, and context-aware search results.
These advancements have transformed search engines from simple text-based retrieval systems to sophisticated AI-driven platforms capable of understanding and responding to complex, context-rich queries in multiple languages.
 on [Unsplash](https://unsplash.com?utm_source=medium&utm_medium=referral)](https://cdn-images-1.medium.com/max/7730/0*jgjzs5Yf1e7dUMY0)
## Integrating LLMs into Search Engines: The Blueprint
To integrate an LLM into a search engine, we need to follow a structured approach. Let’s break it down step-by-step:
1. **Data Collection and Preparation**
2. **Model Selection and Training**
3. **API Integration**
4. **User Interface Enhancement**
5. **Continuous Learning and Improvement**
**Step 1: Data Collection and Preparation**
Before diving into the code, we need data. This includes a combination of user queries, relevant documents, and context-aware conversations. For simplicity, we’ll use an open dataset, but in a real-world scenario, the data should be curated to match the domain of the search engine.
import pandas as pd
# Load a sample dataset of queries and responses
data = pd.read_csv('search_queries.csv')
print(data.head())
**Step 2: Model Selection and Training**
Choosing the right LLM is crucial. For this example, we’ll use GPT-4, but you can opt for other models like Vicuna, Koala, or Alpaca. The training process involves fine-tuning the model on our dataset to ensure it understands the context and delivers accurate responses.
from transformers import GPT2Tokenizer, GPT2LMHeadModel, Trainer, TrainingArguments
# Load the tokenizer and model
tokenizer = GPT2Tokenizer.from_pretrained('gpt-4')
model = GPT2LMHeadModel.from_pretrained('gpt-4')
# Tokenize the dataset
train_encodings = tokenizer(data['query'].tolist(), truncation=True, padding=True, max_length=128)
val_encodings = tokenizer(data['response'].tolist(), truncation=True, padding=True, max_length=128)
# Define training arguments
training_args = TrainingArguments(
output_dir='./results',
num_train_epochs=3,
per_device_train_batch_size=4,
per_device_eval_batch_size=4,
warmup_steps=500,
weight_decay=0.01,
logging_dir='./logs',
logging_steps=10,
)
# Define trainer
trainer = Trainer(
model=model,
args=training_args,
train_dataset=train_encodings,
eval_dataset=val_encodings,
)
# Train the model
trainer.train()
**Step 3: API Integration**
With our model trained, the next step is to integrate it into a search engine. We’ll create an API endpoint that the search engine can query to get responses from the LLM.
from fastapi import FastAPI, Request
from pydantic import BaseModel
import torch
app = FastAPI()
class Query(BaseModel):
text: str
@app.post("/search")
async def search(query: Query):
inputs = tokenizer(query.text, return_tensors="pt")
outputs = model.generate(inputs["input_ids"], max_length=150)
response = tokenizer.decode(outputs[0], skip_special_tokens=True)
return {"response": response}
if __name__ == "__main__":
import uvicorn
uvicorn.run(app, host="0.0.0.0", port=8000)
**Step 4: User Interface Enhancement**
The API is now ready to serve intelligent responses. Enhancing the user interface to support conversational search can significantly improve user engagement. We’ll use a simple web interface to demonstrate this.
<!DOCTYPE html>
<html>
<head>
<title>LLM-Powered Search Engine</title>
<script>
async function search() {
const query = document.getElementById("query").value;
const response = await fetch("http://localhost:8000/search", {
method: "POST",
headers: {
"Content-Type": "application/json"
},
body: JSON.stringify({ text: query })
});
const result = await response.json();
document.getElementById("response").innerText = result.response;
}
</script>
</head>
<body>
<h1>LLM-Powered Search Engine</h1>
<input type="text" id="query" placeholder="Ask me anything...">
<button onclick="search()">Search</button>
<p id="response"></p>
</body>
</html>
**Step 5: Continuous Learning and Improvement**
The integration is just the beginning. To maintain relevance and accuracy, the model should continuously learn from new data and user interactions. Implementing feedback loops and periodic retraining are essential for sustained performance.
 on [Unsplash](https://unsplash.com?utm_source=medium&utm_medium=referral)](https://cdn-images-1.medium.com/max/12000/0*84SryGRhBPFwNx40)
## Multilingual Voice-Enabled Search with LLM Integration
Let’s walk through the code to add multilingual voice search capabilities to our LLM-powered search engine.
1. **Automatic Speech Recognition (ASR)**: Convert voice input to text.
2. **LLM Processing**: Process the text query using an LLM.
3. **Text-to-Speech (TTS)**: Convert the LLM’s text response back to speech.
For ASR, we’ll use a pre-trained model from the transformers library, and for TTS, we'll use a library like gTTS (Google Text-to-Speech) which supports multiple languages.
# Install the necessary libraries
# !pip install transformers gtts SpeechRecognition
import speech_recognition as sr
from transformers import GPT2Tokenizer, GPT2LMHeadModel
from gtts import gTTS
import os
# Load the tokenizer and model
tokenizer = GPT2Tokenizer.from_pretrained('gpt-4')
model = GPT2LMHeadModel.from_pretrained('gpt-4')
# Initialize the recognizer
recognizer = sr.Recognizer()
def recognize_speech_from_mic(language='en-US'):
with sr.Microphone() as source:
print("Please say something...")
audio = recognizer.listen(source)
try:
text = recognizer.recognize_google(audio, language=language)
print(f"You said: {text}")
return text
except sr.UnknownValueError:
print("Google Speech Recognition could not understand audio")
return ""
except sr.RequestError:
print("Could not request results from Google Speech Recognition service")
return ""
def respond_with_tts(response_text, language='en'):
tts = gTTS(text=response_text, lang=language)
tts.save("response.mp3")
os.system("mpg321 response.mp3")
# Main loop for multilingual voice-enabled search
while True:
# Set language for ASR and TTS
language_code = input("Enter language code (e.g., 'en-US' for English, 'fr-FR' for French): ").strip()
query = recognize_speech_from_mic(language=language_code)
if query:
inputs = tokenizer(query, return_tensors="pt")
outputs = model.generate(inputs["input_ids"], max_length=150)
response = tokenizer.decode(outputs[0], skip_special_tokens=True)
print(f"Response: {response}")
respond_with_tts(response, language=language_code.split('-')[0])
* **Multilingual ASR Setup**: We use the speech_recognition library to capture and recognize speech from the microphone in multiple languages.
* recognizer.recognize_google(audio, language=language): Converts audio input to text using Google's ASR service, with the specified language.
* **LLM Processing**: The recognized text is processed by the LLM to generate a response.
* tokenizer(query, return_tensors="pt"): Tokenizes the input query.
* model.generate(inputs["input_ids"], max_length=150): Generates a response using the LLM.
* **Multilingual TTS Setup**: The generated response is converted back to speech using gTTS, which supports multiple languages.
* gTTS(text=response_text, lang=language): Converts text to speech in the specified language.
* os.system("mpg321 response.mp3"): Plays the speech output.
This integration creates a seamless multilingual voice-enabled search experience, leveraging the natural language understanding capabilities of LLMs to provide more intuitive and user-friendly interactions across different languages. By continuously refining the model with new data and incorporating user feedback, the search engine can become even more accurate and personalized over time.
## **Importance of LLMs in Search Engines**
Incorporating LLMs into search engines revolutionizes the way users interact with information. Here are a few key benefits:
1. **Enhanced Understanding:** LLMs can interpret complex queries, understand context, and provide more accurate results.
2. **Personalization:** These models can learn user preferences and deliver personalized content, improving user satisfaction.
3. **Conversational AI:** LLMs enable search engines to engage in natural, human-like conversations, making information retrieval more intuitive.
4. **Content Generation:** Beyond search, LLMs can generate relevant content, summaries, and recommendations, adding value to the user experience.
## Applications of LLM-Integrated Search Engines Across Various Domains
1. **Mobile Apps**: Integrating LLMs into mobile apps enhances user experience by providing more accurate and context-aware search results, enabling conversational interfaces, and offering personalized recommendations.
2. **Websites**: Websites with LLM-powered search engines can deliver precise and relevant content, improve user engagement through interactive Q&A systems, and facilitate efficient information retrieval.
3. **E-commerce Platforms**: E-commerce sites benefit from LLMs by offering advanced product search capabilities, personalized shopping experiences, and intelligent customer support through chatbots.
4. **Educational Portals**: LLMs in educational websites can provide detailed explanations, assist in homework help, and offer personalized learning paths based on user queries.
5. **Healthcare Apps**: Healthcare applications can leverage LLMs for accurate symptom checking, personalized health advice, and streamlined patient-provider communication.
6. **Food Delivery Apps**: LLMs can enhance food delivery apps by understanding complex queries about dietary preferences, providing personalized restaurant recommendations, and optimizing search results for menu items.
7. **Travel and Booking Sites**: Travel apps and websites can utilize LLMs to offer personalized travel recommendations, answer detailed itinerary-related questions, and streamline the booking process with conversational interfaces.
By integrating LLMs, these applications can significantly improve user satisfaction and engagement through more intuitive and intelligent search functionalities.
## Further Exploration
1. [Fine-Tuning Language Models: A Hands-On Guide](https://medium.com/generative-ai/fine-tuning-language-models-a-hands-on-guide-a592f208757f)
2. [Fine-Tuning LLMs with Custom Datasets: A Deep Dive into Customizing Natural Language Processing](https://generativeai.pub/fine-tuning-llms-with-custom-datasets-a-deep-dive-into-customizing-natural-language-processing-09c29ed16f68)
3. [The Future of NLP: Langchain’s Role in Reshaping Language Processing](https://medium.com/generative-ai/the-future-of-nlp-langchains-role-in-reshaping-language-processing-babe252d3d47)
4. [CUDA Boosts GPTs: A Revolutionary Approach to Language Modeling and Generation](https://medium.com/generative-ai/cuda-boosts-gpts-a-revolutionary-approach-to-language-modeling-and-generation-2dbd2a0fa8bf)
5. [From LLaMA 1 to LLaMA 3: A Comprehensive Model Evolution](https://medium.com/p/f10db82167f9)
6. [Kolmogorov–Arnold Networks (KANs):](https://medium.com/p/9d8318d233d7) A New Frontier in Neural Networks
[More Interesting articles here!!](https://medium.com/@shreyasri.ankala)
I hope you enjoyed the blog. If so, don’t forget to react.
[**Connect with me](https://www.biodrop.io/shreyasri258)**
| ankala_shreya |
1,881,102 | Custom Metal Products Solutions from Shenzhen Yaopeng Metal Products Co., Ltd | Customized Steel Items Services coming from Shenzhen Yaopeng Steel Items Carbon monoxide... | 0 | 2024-06-08T05:05:25 | https://dev.to/amanda_andersongh_189c006/custom-metal-products-solutions-from-shenzhen-yaopeng-metal-products-co-ltd-1a2e | design |
Customized Steel Items Services coming from Shenzhen Yaopeng Steel Items Carbon monoxide Ltd
Customized steel items have end up being actually prominent throughout the years because of their lots of benefits. These items are actually created towards client specs as well as appropriate for different requests, consisting of market, house, as well as ecological utilize. The development in the manufacturing of customized steel items has actually viewed a boost in their security as well as performance. Shenzhen Yaopeng Steel Items Carbon monoxide Ltd is actually a business that is prominent offers customized steel services for customers around the world. This post that is short out the benefits, development, security, utilize, solution, cnc machining high top premium, as well as requests of customized steel items coming from Shenzhen Yaopeng Steel Items Carbon monoxide Ltd
Benefits of Customized Steel Items:
Customized steel items have actually a variety that is wide of, consisting of resilience, versatility, as well as cost-effectiveness. These items are actually developed towards final a very time that is long as well as they can easily endure deterioration. Customized steel items are actually likewise versatile, as well as they could be personalized towards satisfy the particular requirements of the customer. They are actually developed to become affordable, as well as they offer a method that is affordable deal with different commercial, house, as well as ecological requests
Development in Manufacturing:
The manufacturing of customized steel items has actually viewed a deal that is great of throughout the years. Shenzhen Yaopeng Steel Items Carbon monoxide Ltd has actually accepted brand-brand new innovations towards create quality that is top steel items. The business utilizes style that is computer-aided application as well as various other automated devices towards produce steel stamping parts items that are actually accurate as well as precise. The manufacturing that is ingenious has actually created it feasible towards create customized steel items that are actually risk-free, practical, as well as satisfy the requirements of customers
Security:
Security is actually crucial when it concerns customized steel items. Shenzhen Yaopeng Steel Items Carbon monoxide Ltd has actually taken security right in to factor to consider when creating their steel items. They guarantee that their items are actually corrosion-resistant as well as are actually created coming from top quality products that satisfy market requirements. The business likewise carries out security that is routine towards guarantee that their items satisfy security requirements. They get security very truly as well as objective towards offer their customers along with risk-free, dependable items
Use Customized Steel Items:
Certainly there requests that are certainly many customized steel items, consisting of commercial, house, as well as ecological utilize. These items are actually utilized towards produce customized equipment, devices, as well as devices for the production market. They are actually likewise utilized towards produce customized components for cars, home devices, as well as various other home products. Customized steel items are actually likewise utilized towards produce fence, entrances, grates, as well as various other frameworks that are outside improve security as well as safety and safety
Ways to Utilize Customized Steel Items:
Utilizing steel that is customized is actually simple as well as simple. Shenzhen Yaopeng Steel Items Carbon monoxide Ltd offers their customers along with directions on ways to utilize their items. They likewise deal sustain towards customers if any sheet metal part type is required by them of assist with setting up or even preserving their customized steel items. The business likewise offers their customers along with the devices that are required well as devices towards finish their setup
Solution as well as High premium that is top
At Shenzhen Yaopeng Steel Items Carbon monoxide Ltd high top premium is actually a concern that is leading. They offer their customers along with top quality customized steel items that satisfy the industry's requirements. The business likewise offers customer that is outstanding towards their customers. They are actually offered towards response any type of concerns their customers might have actually, as well as they strive towards guarantee that their customers are actually pleased along with their services and products
Requests of Customized Steel Items:
Customized steel items could be utilized in different requests, creating all of them flexible as well as important. They are actually utilized in the production market towards produce customized equipment as well as devices that enhance effectiveness as well as process. Customized steel items are actually likewise utilized in the automobile as well as aerospace markets towards produce customized components that satisfy particular requirements. They are actually likewise utilized in the building market towards produce outside frameworks as well as various other functions that are customized improve security as well as safety and safety
| amanda_andersongh_189c006 |
1,881,100 | Logging | A post by Levi Hoang | 27,640 | 2024-06-08T05:00:30 | https://dev.to/levihoang/logging-37i5 | levihoang | ||
1,879,312 | Mastering Software Architecture: The Indispensable Role of Diagrams | Software architecture diagrams provide immense value throughout the software lifecycle. When... | 0 | 2024-06-08T04:55:34 | https://dev.to/tomjohnson3/mastering-software-architecture-the-indispensable-role-of-diagrams-2847 | systemdesign, webdev, microservices, architecture | Software architecture diagrams provide immense value throughout the software lifecycle. When leveraged effectively, these visualization techniques become instrumental tools for architects, developers, and technology leaders.
In the design phase, diagrams facilitate exploration of different options to meet functional and quality attribute goals. The visual models promote discussion to align stakeholders on an appropriate modular structure given the priorities and constraints.
During development, diagrams help coders build out the components and integrations that have been mapped out. The blueprints enable teams to implement consistent, decoupled architectures as intended.
For testing and deployment, the diagrams provide visibility into dependencies that impact release coordination. By understanding connections between services, teams can plan rollouts and mitigate risks systematically.
Finally, in ongoing operations and maintenance, visualization artifacts remain essential references for understanding the landscape. Diagrams equip new engineers to orient themselves and help guide feature development.
Across the entire software lifecycle, architecture diagrams become indispensable communication tools by:
- Aligning mental models across teams
- Enabling implementation of appropriate designs
- Supporting testing, integration, and deployment
- Documenting the evolving structure of complex systems
In summary, software architecture diagrams are vital instruments for developing, operating, and managing modern applications effectively.
##Visual Models Promote Discussion and Planning
Creating visual diagrams of the desired modular architecture serves several important purposes during a migration from a monolithic application. First, the diagrams promote productive discussions among stakeholders, including business leaders, architects, and development teams. As various options are explored, the groups can align on natural seams in the monolith that correspond to business capabilities.
These visualization techniques also help the organization plan the migration in iterative stages. Rather than a risky "big bang" rewrite, the teams can coordinate a gradual transition of one capability at a time. The diagrams provide blueprints to extract services and data stores methodically while preventing wide-scale downtime that would disrupt users.
In addition, the visual models set the stage for monitoring dependencies between components over time. As the architecture diversifies with cloud-native deployment patterns such as containers and serverless functions, understanding connections across services becomes essential. The diagrams created early on can be evolved as a map to manage the growing complexity of the landscape.
In summary, diagramming the current and future application structure is invaluable for visualizing, strategizing, and ultimately coordinating a successful migration.
##Architecture Diagrams Have Broad Practical Value
For large, complex business applications, diagrams enable teams to decompose the system progressively along business boundaries. For smaller, modern cloud-native applications, visual models help developers build modular, scalable architectures.
Across various contexts, architecture diagrams provide a common language for technical and non-technical stakeholders to discuss designs. The visual narrative promotes shared understanding among team members with diverse perspectives and priorities.
Additionally, the diagrams give organizations the ability to map out transition plans in sync with business roadmaps. By outlining capabilities and dependencies, teams can strategically schedule incremental changes while minimizing risk.
Over time, architecture diagrams form lasting artifacts that document the evolving structure of systems. As new technologies and deployment patterns emerge, these maps can be updated to track changes. They become invaluable resources for onboarding team members and keeping sight of the big picture.
##Conclusion
As software systems grow more complex and interconnected, visualization techniques become critical for understanding and evolving architectures.
For any sophisticated software initiative, architecture diagrams offer an essential visual narrative. They align perspectives, capture design decisions, highlight dependencies, and create living references.
By leveraging architecture diagrams, engineering leaders can make judicious technical decisions. Development teams can build modular, resilient systems. And stakeholders can share a common vision for the application’s structure and roadmap.
##What’s next
This is just a brief overview of why software architecture diagrams are important. If you are interested in a deep dive in with:
- Examples of system architecture diagrams
- Essential components of a system architecture, sequence, and network diagrams
- How to create software architecture diagrams
- A practical software architecture diagram example: e-commerce monolith to microservices transformation
Visit the original [Multiplayer guide - Software Architecture Diagram Example & Tutorial.](https://www.multiplayer.app/distributed-systems-architecture/software-architecture-diagram-example/)
| tomjohnson3 |
1,881,095 | CSS Art: June | This is a submission for Frontend Challenge v24.04.17, CSS Art: June. Inspiration For... | 0 | 2024-06-08T04:52:22 | https://dev.to/afzalimdad9/css-art-june-1fog | frontendchallenge, devchallenge, css | _This is a submission for [Frontend Challenge v24.04.17](https://dev.to/challenges/frontend-2024-05-29), CSS Art: June._
## Inspiration
For this CSS Art project themed around June, I focused on representing the vibrant and sunny aspects of the month, particularly the summer solstice. June is often associated with clear blue skies, warm sunshine, and blooming nature. This piece aims to capture the essence of summer with a bright, cheerful scene.
## Demo
You can view the live demo and edit the code on [Codepen](https://codepen.io/afzalimdad9/pen/ExzvgrM)
```
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>CSS Art - June</title>
<style>
body {
margin: 0;
height: 100vh;
display: flex;
justify-content: center;
align-items: center;
background: linear-gradient(to top, #87CEEB, #ffffff);
}
.scene {
position: relative;
width: 300px;
height: 300px;
}
.sun {
position: absolute;
top: 20px;
left: 50%;
transform: translateX(-50%);
width: 100px;
height: 100px;
background: radial-gradient(circle, #FFD700, #FFA500);
border-radius: 50%;
}
.grass {
position: absolute;
bottom: 0;
width: 100%;
height: 100px;
background: linear-gradient(to top, #32CD32, #7CFC00);
border-top-left-radius: 50%;
border-top-right-radius: 50%;
}
.flower {
position: absolute;
width: 20px;
height: 20px;
background: pink;
border-radius: 50%;
box-shadow: 0 0 0 10px white, 0 0 0 20px pink;
}
.flower:nth-child(2) {
top: 220px;
left: 50px;
}
.flower:nth-child(3) {
top: 200px;
left: 150px;
}
.flower:nth-child(4) {
top: 230px;
left: 250px;
}
.butterfly {
position: absolute;
width: 20px;
height: 20px;
background: orange;
border-radius: 50%;
box-shadow: 10px 10px 0 orange, -10px 10px 0 orange;
}
.butterfly:nth-child(5) {
top: 50px;
left: 100px;
}
.butterfly:nth-child(6) {
top: 80px;
left: 200px;
}
</style>
</head>
<body>
<div class="scene">
<div class="sun"></div>
<div class="grass"></div>
<div class="flower"></div>
<div class="flower"></div>
<div class="flower"></div>
<div class="butterfly"></div>
<div class="butterfly"></div>
</div>
</body>
</html>
```
## Journey
The process of creating this CSS Art was a delightful experience. I started by brainstorming the key elements that symbolize June: the sun, clear skies, green grass, flowers, and butterflies. Using pure CSS, I experimented with gradients, positioning, and box shadows to bring these elements to life.
## Key Learnings:
Gradients and Positioning: Learned to effectively use gradients for the background and different elements.
Box Shadows: Used box shadows creatively to simulate petals and butterfly wings.
Positioning: Improved my understanding of absolute positioning for placing elements precisely.
## What I'm Proud Of:
I am particularly proud of how the sun and the overall scene came together, creating a warm and inviting representation of June. The butterflies add a dynamic touch, making the scene feel more alive.
## Future Improvements:
I hope to further refine my skills by adding more complex animations and interactivity to future CSS Art projects, such as making the butterflies flutter or adding a gentle sway to the flowers.
Thank you for considering my submission! | afzalimdad9 |
1,881,093 | Harnessing the Power of WebAssembly in Modern Web Applications | Here's an overview: Introduction to WebAssembly Key Characteristics of WebAssembly How WebAssembly... | 0 | 2024-06-08T04:50:52 | https://dev.to/emmanuelj/harnessing-the-power-of-webassembly-in-modern-web-applications-439c | javascript, webdev, authjs, programming | Here's an overview:
Introduction to WebAssembly
Key Characteristics of WebAssembly
How WebAssembly Works
Benefits for Developers
The Evolution of Web Development
Why WebAssembly Matters
Understanding the WebAssembly Architecture
Core Components of WebAssembly Architecture
Execution Environment
Security and Sandboxing
Advantages of WebAssembly's Architecture
How WebAssembly Works
Core Components
Execution Flow
Security Considerations
Setting Up a WebAssembly Project
Integrating WebAssembly with JavaScript
Performance Benefits of WebAssembly
Security Implications and Best Practices
Security Implications
Best Practices
Real-World Use Cases of WebAssembly
E-Commerce Platforms
Gaming
Data Visualisation
Video Editing
Artificial Intelligence and Machine Learning
Blockchain Technologies
CAD and 3D Modelling
Legacy Code Integration
Financial Services
Challenges and Limitations
Future Trends in WebAssembly
Increased Adoption in Various Industries
Advances in Tooling and Libraries
Multi-Language Support
WebAssembly System Interface (WASI)
Enhanced Security and Performance Optimisations
Cloud and Serverless Implementations
Conclusion: The Impact of WebAssembly on Modern Web Development
Performance Enhancement
Cross-Language Interoperability
Security
Improved User Experience
Ecosystem and Community
Future Prospects
Introduction to WebAssembly
WebAssembly, often abbreviated as WASM, is a binary instruction format designed to serve as a portable target for the compilation of high-level languages like C, C++, and Rust, enabling high-performance applications to run on web platforms. Originating from a collaborative effort between major browser vendors, WebAssembly aims to close the performance gap between native code and web applications.
Key Characteristics of WebAssembly
Efficiency: WebAssembly's binary format is designed for compact size and fast execution. This ensures that applications load quickly and run efficiently, providing near-native performance.
Portability: Programs compiled to WebAssembly can run on any platform that supports a compliant runtime environment. This allows developers to write once and deploy anywhere.
Security: WebAssembly is designed with a strong security model, including well-defined executable formats and memory-safe execution environments that isolate modules to prevent harmful interactions.
How WebAssembly Works
WebAssembly operates as an intermediate representation that modern web browsers can execute alongside JavaScript. When a WebAssembly module is loaded, the following steps occur:
Compilation: Source code written in languages like C++ or Rust is compiled into WebAssembly bytecode.
Loading and Validation: The browser fetches the WebAssembly module, which is then validated to ensure it conforms to the WebAssembly specifications.
Optimization and Execution: After validation, the WebAssembly bytecode is optimised and executed by the browser’s runtime environment, harnessing the underlying hardware capabilities to deliver superior performance.
Benefits for Developers
By using WebAssembly, developers can:
Leverage Existing Codebases: Existing libraries and code written in C, C++, or Rust can be repurposed for the web, reducing duplication of effort.
Improved Performance: Applications requiring heavy computations, such as gaming engines or data visualisation tools, benefit greatly from the performance enhancements provided by WebAssembly.
Interoperability: WebAssembly modules can seamlessly interact with JavaScript, allowing for flexible integration in web applications.
Future-Proofing: With backing from major browser vendors and an active community, WebAssembly continues to evolve, offering new opportunities for optimisation and feature enhancements.
By embedding WebAssembly into sophisticated projects, developers can significantly enhance the capabilities and performance of modern web applications, setting new benchmarks for what is possible on the web.
The Evolution of Web Development
Beginning in the early 1990s, the web development landscape was dominated by static HTML pages. Developers utilised these pages to convey information simply and efficiently. However, the limitations of static content soon became apparent, driving demand for more dynamic, interactive web experiences.
With the turn of the millennium, the advent of scripting languages like JavaScript marked a significant milestone. JavaScript, coupled with CSS, empowered developers to create more interactive, user-friendly interfaces. Browser-specific quirks, however, posed substantial challenges, necessitating extensive cross-browser testing and debugging.
The mid-2000s ushered in the Web 2.0 era characterised by the rise of AJAX (Asynchronous JavaScript and XML). AJAX allowed for the asynchronous exchange of data between clients and servers, enabling smoother user experiences without full page reloads. This period also witnessed the proliferation of web frameworks and libraries such as jQuery, which abstracted over inconsistencies and enriched the development process.
Node.js's arrival in 2009 revolutionised server-side scripting by leveraging JavaScript outside the browser environment. This development paved the way for full-stack JavaScript applications, making it feasible for developers to use a single language for both client-side and server-side coding.
A crucial breakthrough came with the introduction of Single Page Applications (SPAs) by frameworks like AngularJS, React, and Vue.js. SPAs fortified by robust client-side routing and rendering capabilities, provided seamless, app-like user experiences. They also ushered in Component-Based Architecture, promoting reusable, modular code structures.
Key evolutionary milestones:
1990s: Static HTML pages
2000s: Rise of JavaScript, CSS, and AJAX
Late 2000s: Proliferation of jQuery and other libraries
2009: Introduction of Node.js
2010s: Emergence and dominance of SPAs
Moreover, the advent of WebAssembly (Wasm) represents a paradigm shift. WebAssembly enables near-native performance by allowing code written in various programming languages to run in the browser. It presents a new dimension in web development, unlocking potential that traditional JavaScript execution engines cannot match. By executing code at higher speeds, Wasm broadens the horizons for complex applications, including gaming, CAD, and real-time data processing, within the browser.
This progression, from static pages to dynamic, fast-loading web applications, highlights the relentless advancement of web development technologies and methodologies.
Why WebAssembly Matters
WebAssembly, often abbreviated as Wasm, represents a monumental shift in the landscape of web development. Amidst the evolving dynamics of web applications, its significance is underscored by several core factors:
Performance:
WebAssembly provides near-native performance, owing to its low-level binary format.
It allows for a substantial performance boost over traditional JavaScript, optimising resource-heavy computations.
Metrics consistently indicate reduced execution times and enhanced responsiveness.
Cross-Platform:
WebAssembly operates consistently across various platforms and devices.
By being part of the Web standard, it ensures seamless integration and uniformity irrespective of the browser or operating system.
Developers can target a broader audience without the typical cross-platform compatibility issues.
Language Agnostic:
Wasm supports a multitude of programming languages including C, C++, Rust, and Go, among others.
This flexibility allows developers to leverage existing codebases while bringing advanced functionalities to the web.
Multi-language support fosters diverse skillset utilisation in web development projects.
Security:
WebAssembly runs in a safe, sandboxed environment, offering robust security features.
It mitigates risks associated with traditional plug-ins and extensions, reducing vulnerability exposure.
Integrated with modern browser security models, it provides an extra layer of defence against potential threats.
Interoperability:
Wasm ensures seamless interaction with JavaScript and existing web APIs.
It can be effortlessly incorporated into current web applications, enhancing functionalities without a complete rewrite.
Interoperability promotes gradual adoption, allowing developers to introduce improvements progressively.
"WebAssembly enables a new range of high-performance, web-based applications," highlights a key industry report.
Community and Ecosystem:
The growing ecosystems around WebAssembly include robust tooling, libraries, and support frameworks.
Collaboration among major tech companies ensures that ongoing developments align with the needs of modern web applications.
Active community engagement fosters innovation and rapid iteration cycles.
In essence, by harnessing the power of WebAssembly, developers can unlock unprecedented capabilities in modern web applications.
Understanding the WebAssembly Architecture
WebAssembly (Wasm) architecture is meticulously designed to ensure flexibility, performance, and security in web applications. It comprises several core components that interact seamlessly to deliver efficient execution of code in browsers and non-web environments.
Core Components of WebAssembly Architecture
Module:
The foundational unit in WebAssembly.
Encapsulates functions, tables, memories, and global variables.
Written in a binary format for efficient transmission and execution.
Linear Memory:
A contiguous, mutable array of raw bytes.
Supports direct memory access, crucial for performance.
Shared and accessed via instructions in the module.
Execution Stack:
Utilised for managing function calls and local variables.
Each function call creates a new frame on the stack.
Vital for tracking execution context.
Instructions:
Low-level machine code instructions that perform operations.
Strictly typed and executed in a stack-based manner.
Designed for minimal overhead and deterministic execution.
Execution Environment
Runtime:
The environment where WebAssembly modules run.
Supports instantiation, memory management, and communication with host environments.
Interfaces directly with the underlying system.
JavaScript Integration:
WebAssembly modules can be imported and used in JavaScript.
Enables blending of WebAssembly's performance with JavaScript's flexibility.
Uses the WebAssembly JavaScript API for module interaction.
Security and Sandboxing
WebAssembly prioritises security through sandboxing.
Runs in a restricted environment with no access to the host’s file system or network by default.
Incorporates a linear memory model to avoid memory corruption vulnerabilities.
Enforces strict control over execution, data types, and memory allocation.
Advantages of WebAssembly's Architecture
Performance:
Near-native execution speeds.
Reduces latency and increases responsiveness in applications.
Portability:
Platform-independent binary format.
Ensures consistent execution across different systems.
Interoperability:
Facilitates the use of multiple languages.
Compiles code from languages like C, C++, and Rust into WebAssembly modules.
The structured design of WebAssembly architecture ensures it meets the demands of modern web applications. Each component, from modules to execution environments, plays a critical role in providing a robust and efficient execution model for web and non-web environments alike.
How WebAssembly Works
WebAssembly (Wasm) represents a significant evolution in web development, accentuating performance and efficiency. It is a binary instruction format for a stack-based virtual machine, designed as a portable compilation target for high-level languages like C, C++, and Rust. Wasm enables execution at near-native speeds by taking advantage of common hardware capabilities available on a wide range of platforms.
Core Components
Modules:
Wasm programs are comprised of modules. A module encapsulates all the code and state necessary for execution.
Each module contains definitions for functions, tables, memories, and globals. These elements constitute the building blocks of WebAssembly applications.
Linear Memory:
A contiguous, unfragmented memory space that is accessible by the WebAssembly module.
Memory is explicitly allocated and managed within Wasm, allowing precise control over memory usage.
Import/Export Mechanism:
Modules can import functions, tables, memories, and globals from the host environment or other modules.
Exported elements from a module can be accessed and invoked by the host, facilitating interoperability with JavaScript and other web APIs.
Execution Flow
Compilation:
High-level source code, written in a language like C++ or Rust, is compiled into WebAssembly binary format (.wasm file).
The compilation step ensures that the code is optimised for performance.
Loading and Instantiation:
Wasm modules are loaded into the web environment. This step involves fetching and compiling the binary.
Once loaded, the module is instantiated, which prepares it for execution by initialising its memory and tables.
Integration with JavaScript:
JavaScript acts as a bridge, facilitating interaction between the Wasm module and the web application.
Functions exported by Wasm can be called from JavaScript using the WebAssembly JavaScript API.
Security Considerations
Sandboxing:
Wasm runs in a sandboxed execution environment, limiting the risk of malicious code affecting the host system or other web applications.
The sandboxing also ensures that memory access remains within bounds, preventing buffer overflow attacks.
Controlled Execution:
Browsers enforce strict rules on how Wasm interacts with system resources.
Direct system calls are restricted, requiring intermediary functions provided by the host environment for such operations.
WebAssembly's structured design and robust architecture enable modern web applications to achieve unprecedented levels of performance and efficiency. With precise control over hardware resources and seamless integration capabilities, Wasm stands as a formidable tool in the web developer's arsenal.
Setting Up a WebAssembly Project
Setting up a WebAssembly (Wasm) project involves several key steps that ensure a smooth integration with modern web applications. The following procedure outlines the essential steps required to configure and initiate a WebAssembly project efficiently.
1. Install Emscripten SDK: Emscripten is a widely-used toolchain for compiling C/C++ code to WebAssembly. Install the Emscripten SDK by following these steps:
Download and install the SDK:
```
git clone https://github.com/emscripten-core/emsdk.git
cd emsdk
./emsdk install latest
./emsdk activate latest
```
source ./emsdk_env.sh
Ensure the environment is correctly set up for compiling WebAssembly.
2. Write Source Code: Create the source code in C, C++, or Rust. For instance, a simple C++ function:
```
#include <iostream>
extern "C" {
int add(int a, int b) {
return a + b;
}
}
```
3. Compile to WebAssembly: Use Emscripten to compile the source code into a WebAssembly binary and accompanying JavaScript glue code:
Example command to compile C/C++ code:
emcc add.cpp -s WASM=1 -o add.js
For Rust, use the wasm-pack tool:
wasm-pack build --target web
4. Set Up Web Server: To serve the WebAssembly code, a local web server is needed. Options include:
Simple HTTP server in Python:
python -m http.server 8080
Node.js-based server:
npm install -g http-server
http-server -c-1
5. Create HTML and JavaScript: Develop an HTML file to load and interact with the WebAssembly module.
```
<!DOCTYPE html>
<html>
<head>
<title>Wasm Demo</title>
</head>
<body>
<script src="add.js"></script>
<script>
Module.onRuntimeInitialized = () => {
const result = Module._add(2, 3);
console.log(`Result: ${result}`); // Output: Result: 5
};
</script>
</body>
</html>
```
6. Test and Deploy: After setting up the project components, test the functionality in a browser. Ensure that WebAssembly is loaded, and function calls execute correctly. Finalise the setup by deploying the project to a production server.
By following these steps, developers ensure that their WebAssembly projects are correctly configured and optimally integrated into modern web applications.
Integrating WebAssembly with JavaScript
Integrating WebAssembly (Wasm) with JavaScript involves leveraging the strengths of both languages to create high-performance web applications. Wasm modules can co-exist with JavaScript, enhancing the efficiency of computational heavy tasks. Developers generally follow a systematic process to achieve seamless integration between the two.
Loading Wasm Modules: The WebAssembly JavaScript API provides the WebAssembly.instantiate method to load and instantiate Wasm modules. This method accepts binary code, typically recommended to be fetched using the Fetch API, followed by compilation and instantiation.
```
async function loadWasmModule(url, importObject) {
const response = await fetch(url);
const buffer = await response.arrayBuffer();
const wasmModule = await WebAssembly.instantiate(buffer, importObject);
return wasmModule.instance;
}
```
Importing Functions: Wasm modules can import JavaScript functions. This interplay allows Wasm to call JavaScript functions directly. Import objects contain key-value pairs where keys are the names of imports declared in the Wasm module and values are their corresponding JavaScript functions.
```
const importObject = {
env: {
jsFunction: function(arg) {
console.log(arg);
}
}
};
```
Calling Wasm Functions: Exported Wasm functions can be called from JavaScript. Once the Wasm module is instantiated, JavaScript can invoke these functions directly. Wasm functions usually provide higher performance for compute-intensive operations.
```
(async () => {
const wasmInstance = await loadWasmModule('module.wasm', importObject);
wasmInstance.exports.wasmFunction();
})();
```
Memory Management: Shared memory between Wasm and JavaScript involves the use of WebAssembly.Memory object. It allows both to read and write to a common memory space. This capability ensures efficient data exchange and manipulation without redundant copies.
```
const memory = new WebAssembly.Memory({initial: 1});
const importObject = {
env: {
memory: memory
}
};
```
Integrating WebAssembly with JavaScript is a paradigm that synthesizes the computational power of Wasm with the flexibility of JavaScript. This hybrid approach is increasingly important in modern web development, enabling developers to build robust, efficient, and high-performance applications. The method outlined represents a fundamental, yet sophisticated, strategy for effective Wasm-JavaScript synergy.
Performance Benefits of WebAssembly
WebAssembly (Wasm) offers significant performance benefits, making it a powerful tool for modern web applications. These advantages arise due to its design principles and execution model.
Near-Native Performance: Wasm code is compiled to a binary format, enabling the execution of code at speeds close to native applications. This is a stark contrast to JavaScript, which is interpreted and often less efficient.
Optimised Memory Usage: WebAssembly uses a compact and efficient binary representation, which leads to smaller file sizes and reduced memory footprint. This allows faster loading times and reduced bandwidth usage, enhancing user experience.
Parallel Execution: Wasm supports multi-threading, allowing applications to perform parallel processing tasks using Web Workers. This is particularly beneficial for performance-intensive applications such as scientific simulations and video rendering.
Consistency Across Platforms: The deterministic nature of Wasm ensures consistent performance across different environments and platforms. Unlike JavaScript, which can behave diff | emmanuelj |
1,881,079 | Top Redis Use Cases | Redis is a powerful in-memory data structure store known for its speed and versatility. It supports... | 0 | 2024-06-08T04:23:32 | https://dev.to/raksbisht/top-redis-use-cases-322k | redis, inmemorydatabase, caching, tutorial | Redis is a powerful in-memory data structure store known for its speed and versatility. It supports various data types that cater to different use cases. Let's explore some of the top Redis use cases, categorized by data types:
## Strings
1) **Session Management** 👤💬
* Redis strings are ideal for storing user session information due to their quick read and write capabilities.
* This ensures a seamless and responsive user experience, making sure users stay logged in and their activities are tracked efficiently.
2) **Cache** ⚡️🗄️
* Redis strings can cache frequently accessed data, reducing the load on the primary database and enhancing application performance.
* Typical cached items include web pages, API responses, and database query results, ensuring faster data retrieval.
3) **Distributed Lock** 🔒
* Redis strings are used to implement distributed locks, which synchronize access to shared resources across different systems.
* This prevents race conditions in distributed environments, ensuring safe and consistent data operations.
4) **Counter** 🔢
* Redis strings are perfect for maintaining counters, such as tracking website visits, likes on a post, or the number of items sold.
* Atomic increment operations ensure accuracy and reliability, making counters simple and effective.
## Integers
1) **Rate Limiter** 🚦
* Redis integers help implement rate limiting to control the rate of requests to a service.
* This protects resources from abuse and ensures fair usage policies, maintaining service stability and reliability.
2) **Global ID Generator** 🆔
* Redis can generate unique identifiers using atomic increment operations, crucial for creating unique keys or IDs in a distributed system.
* This ensures that every entity gets a unique and sequential ID.
##Hashes
1) **Shopping Cart** 🛒
* Redis hashes store complex objects like shopping carts, where each field represents an item and its quantity.
* This structure allows for efficient retrieval and modification of individual items within the cart, making it perfect for e-commerce applications.
## Bitmaps
1) **User Retention** 📊
* Bitmaps in Redis are used for tracking user activities, such as daily logins or feature usage.
* They provide a compact and efficient way to store boolean information for large sets of users, aiding in user engagement analysis.
## Lists
1) **Message Queue** 📬
* Redis lists serve as message queues, supporting operations like pushing new messages and popping the oldest ones.
* This is useful in scenarios requiring order-preserving and reliable message delivery, such as task queues and chat applications.
## Sorted Sets (ZSets)
1) **Rank/Leaderboard** 🏆
* Redis sorted sets maintain score-based rankings, making them ideal for leaderboards in gaming applications.
* They support efficient range queries to quickly retrieve top or bottom-ranked elements, ensuring up-to-date and accurate rankings.
Redis's versatility and high performance make it a go-to solution for a wide range of application requirements. Whether it's managing sessions, caching data, or implementing distributed locks, Redis proves to be an invaluable tool in modern application development. Its diverse data structures cater to specific use cases, making development more efficient and effective.
| raksbisht |
1,854,180 | Populating Next Right Pointers in Each Node | LeetCode | Java | class Solution { public Node connect(Node root) { if(root==null) return... | 0 | 2024-06-08T04:20:42 | https://dev.to/tanujav/populating-next-right-pointers-in-each-node-leetcode-java-1l9l | java, beginners, algorithms, leetcode | ``` java
class Solution {
public Node connect(Node root) {
if(root==null)
return root;
Queue<Node> queue = new LinkedList<>();
queue.add(root);
while(!queue.isEmpty()){
int size = queue.size();
for(int i=0; i<size; i++){
Node node = queue.remove();
if(i<size-1)
node.next = queue.peek();
if(node.left != null)
queue.add(node.left);
if(node.right!=null)
queue.add(node.right);
}
}
return root;
}
}
```
_Thanks for reading :)
Feel free to comment and like the post if you found it helpful
Follow for more 🤝 && Happy Coding 🚀_
If you enjoy my content, support me by following me on my other socials:
https://linktr.ee/tanujav7 | tanujav |
1,881,042 | Day 2: Setting Up! | Welcome to Day 2: Setting Up! Today, we're going to get Node.js up and running on your computer.... | 0 | 2024-06-08T04:19:38 | https://dev.to/learn_with_santosh/day-2-setting-up-4lm9 | 30daysofnodejs, node, learning | Welcome to Day 2: Setting Up!
Today, we're going to get Node.js up and running on your computer. Here's how:
1. **Download Node.js:** Go to the official Node.js website (https://nodejs.org/) and download the version that's right for your computer. If you're not sure which one to choose, the LTS (Long-Term Support) version is usually a safe bet.
2. **Install Node.js:** Once the download is complete, open the installer and follow the instructions to install Node.js on your computer. It's a pretty straightforward process, just like installing any other software.
3. **Verify Installation:** After installation, open your command prompt (if you're using Windows) or terminal (if you're using macOS or Linux). Type the following command and hit Enter:
```
node -v
```
This command checks if Node.js is installed correctly and shows you the version number. If you see a version number printed out, congratulations! Node.js is installed on your computer.
That's it for today! Tomorrow, we'll dive into writing your first Node.js script. Let me know if you have any questions or if you're ready to move on to Day 3! | learn_with_santosh |
1,881,041 | From your source code to zero-downtime, high availability, and secure production deployment in no time | With your project and its sole Dockerfile, Docker-Blue-Green-Runner manages the remainder of the... | 0 | 2024-06-08T04:18:28 | https://dev.to/andrewkangg/from-your-source-code-to-zero-downtime-high-availability-and-secure-production-deployment-in-no-time-3fob | cicd, sre, devops, docker | - With your project and its sole Dockerfile, Docker-Blue-Green-Runner manages the remainder of the Continuous Deployment (CD) process with [wait-for-it](https://github.com/vishnubob/wait-for-it), [consul-template](https://github.com/hashicorp/consul-template) and [Nginx](https://github.com/nginx/nginx).
- Examples in PHP, Java, and Node.js
https://github.com/Andrew-Kang-G/docker-blue-green-runner | andrewkangg |
1,881,040 | Guide Ultime sur Smart One IPTV : Téléchargement, Installation et Configuration 2024 | Qu’est-ce que Smart One IPTV ? Smart One IPTV est une application de streaming qui utilise des... | 0 | 2024-06-08T04:16:24 | https://dev.to/aboprotv/guide-ultime-sur-smart-one-iptv-telechargement-installation-et-configuration-2024-3640 | Qu’est-ce que Smart One IPTV ?
Smart One IPTV est une application de streaming qui utilise des listes M3U pour fournir du contenu télévisuel. Ces listes M3U contiennent des liens vers des flux de chaînes TV en direct, des films, des séries, et plus encore. Avec Smart One IPTV, vous pouvez transformer n’importe quel appareil compatible en un centre de divertissement complet. L’application supporte divers formats de fichiers et offre une interface utilisateur conviviale pour une expérience de visionnage fluide.
Fonctionnalités principales de Smart One IPTV
Interface utilisateur intuitive : Facile à naviguer et à utiliser, même pour les débutants.
Support multi-format : Prend en charge les formats M3U et XSPF.
EPG (Electronic Program Guide) : Affiche les horaires des programmes télévisés pour une meilleure planification de votre visionnage.
Fonction de recherche : Permet de trouver rapidement vos chaînes et émissions préférées.
[Abonnement IPTV Smartone IPTV](https://abonnementiptv.ma/produit/smart-one-iptv-abonnement-12-mois/)
Comment Télécharger et Installer Smart One IPTV
Sur Android
Télécharger l’APK :
Accédez au site officiel de Smart One IPTV ou à un magasin d’applications tiers fiable.
Téléchargez le fichier APK.
Installer l’APK :
Allez dans les “Paramètres” de votre appareil Android.
Sélectionnez “Sécurité” et activez l’option “Sources inconnues”.
Ouvrez le fichier APK téléchargé et suivez les instructions à l’écran pour installer l’application.
Lancer l’application :
Une fois l’installation terminée, ouvrez Smart One IPTV et configurez-le en suivant les instructions affichées.
Sur Roku
Activer le mode développeur :
Sur votre télécommande Roku, appuyez successivement sur : Accueil (5 fois), Flèche haut (3 fois), Flèche droite (2 fois), Flèche gauche (2 fois), Flèche droite (2 fois).
Notez l’adresse IP affichée et connectez-vous à l’interface développeur de Roku via un navigateur web.
Télécharger l’application :
Accédez au panneau du développeur sur votre Roku via un navigateur web.
Téléchargez l’application en utilisant le lien fourni sur le site officiel de Smart One IPTV.
Installer l’application :
Suivez les instructions pour installer l’application sur votre Roku.
Sur iOS
Télécharger l’application :
Ouvrez l’App Store sur votre appareil iOS.
Recherchez “Smart One IPTV” et téléchargez l’application.
Installer l’application :
Suivez les instructions à l’écran pour installer l’application sur votre appareil.
Lancer l’application :
Une fois installée, ouvrez Smart One IPTV et configurez-la.
Sur Smart TV LG
Télécharger l’application :
Allumez votre Smart TV LG et accédez au LG Content Store.
Recherchez “Smart One IPTV”.
Installer l’application :
Téléchargez et installez l’application en suivant les instructions à l’écran.
Lancer l’application :
Une fois l’application installée, ouvrez-la et suivez les étapes de configuration.
Sur Smart TV Samsung
Télécharger l’application :
Allumez votre Smart TV Samsung et accédez au Samsung App Store.
Recherchez “Smart One IPTV”.
Installer l’application :
Téléchargez et installez l’application en suivant les instructions à l’écran.
Lancer l’application :
Une fois l’application installée, ouvrez-la et suivez les étapes de configuration | aboprotv | |
1,881,039 | ... ashes to ashes | En febrero de 2023 tuve el deseo de crear mi propio videojuego o mejor dicho, un fan game. Soy muy... | 0 | 2024-06-08T04:16:04 | https://dev.to/reyarruinado/-ashes-to-ashes-4k13 | webdev, beginners, learning | En febrero de 2023 tuve el deseo de crear mi propio videojuego o mejor dicho, un fan game. Soy muy ambicioso con mis planes y en ese momento era lo que mas tarde descubriria que otros llaman "IDEAMAN", tenia un conocimiento escaso sobre la programacion, ya habia diseñado paginas web durante la preparatoria y tuve algunas clases en la universidad pero jamas habia tocado un software para crear videojuegos, investigue mis opciones y me decante por Unity (aumque curiosamente el unico juego que he publicado lo hice en GameMaker).
He aprendido bastante en este año y 4 meses, ahora me siento preparado para lanzar mi primer titulo comercial, se que tengo todas las de perder pero me hice de un presupuesto y de una estrategia para minimizar mis riesgos, soy el ReyArruinado y a partir de hoy les contare el inicio de mi ascenso.
 | reyarruinado |
1,880,191 | Introduction to repositories | Table of Contents What is a Repository? How to create a repository Adding files to a... | 0 | 2024-06-08T04:14:03 | https://dev.to/g_venkatasandeepreddy_b/introduction-to-repositories-al4 | github, developer |
## Table of Contents
[What is a Repository?](#repository)
[How to create a repository](#create a repository)
[Adding files to a repository](#add a file)
[How to fork a repository](#fork a repository)
[Excercise](#excercise)
## What is a Repository? <a name="repository"></a>
A **repository** contains all of your project's files, revision history, and collaborator discussion. You can use repositories to manage your work, track changes, store revision history and work with others. Before we dive too deep, let’s first start with how to create a repository.
<br>
## How to create a repository <a name="create a repository"></a>
You can create a new repository on your personal account or any organization where you have sufficient permissions.
Let’s tackle creating a repository from [github.com](https://github.com/).
1. In the upper-right corner of any page, use the drop-down menu, and select New repository.
2. Use the Owner dropdown menu to select the account you want to own the repository.
3. Type a name for your repository, and an optional description.
4. Add Description to the repository (optional)
5. Choose a repository visibility.
* Public repositories are accessible to everyone on the internet.
* Private repositories are only accessible to you, people you explicitly share access with, and, for organization repositories, certain organization members.
6. Enable _Add a README file_
7. Click Create repository and congratulations! You just created a repository!
Next up, let’s review how to add files to your repository.
<br>
## Adding files to a repository <a name="add a file"></a>
Files in **GitHub** can do a handful of things, but the main purpose of files is to store data and information about your project.
Let’s review how to add a file to your repository.
But before we begin, it is worth knowing in order to add a file to a repository you must first have minimum Write access within the repository you want to add a file.
1. On GitHub.com, navigate to the main page of the repository.
2. In your repository, browse to the folder where you want to create a file.
3. Above the list of files, select the Add file ᐁ dropdown menu, then click ᐩ Create new file.
4. In the file name field, type the name and extension for the file. To create subdirectories, type the / directory separator.
5. In the file contents text box, type content for the file.
6. To review the new content, above the file contents, click Preview.
7. Click Commit changes...
8. In the "Commit message" field, type a short, meaningful commit message that describes the change you made to the file. You may provide _Extended description_ to the commit.
9. You can attribute the commit to more than one author in the commit message.
10. If you have more than one email address associated with your account on GitHub.com, click the email address drop-down menu and select the email address to use as the Git author email address. Only verified email addresses appear in this drop-down menu. If you enabled email address privacy, then [username]@users.noreply.github.com is the default commit author email address.
11. Below the _Extended description_ field, decide whether to add your commit to the current branch or to a new branch. If your current branch is the default branch, you should choose to create a new branch for your commit and then create a pull request.
12. Click Commit changes or Propose changes.
Congratulations you just created a new file in your repository! You have also created a new branch and made a commit!
<br>
### Uploading files
1. On GitHub.com, navigate to the main page of the repository.
2. In your repository, browse to the folder where you want to create a file.
3. Above the list of files, select the Add file ᐁ dropdown menu, then click ᐩ Upload files.
4. Upload files either by using _drag and drop_ or select using _Choose your files_ feature.
5. In the Commit Changes tab,
* In the "Commit message" field, type a short, meaningful commit message that describes the change you made to the file. You may provide _Extended description_ to the commit.
* Below the _Extended description_ field, decide whether to add your commit to the current branch or to a new branch. If your current branch is the default branch, you should choose to create a new branch for your commit and then create a pull request.
6. Click Commit changes or Propose changes.
Congratulations you just created a new file in your repository! You have also created a new branch and made a commit!
**_We will discuss about pull request in coming posts_**.
<br>
<br>
## How to fork a repository <a name="fork a repository"></a>
**Demonstrated [repository](https://github.com/skills/introduction-to-github)**
1. Navigate to the Repository which we need to fork
2. In the Header part of the repository select fork option
3. Modify the fields only if necessary for better understandability.(Here we are not modifying any fields)
4. Here we are having an option called _Copy the **main** branch only_
* This refers to copy only the main branch and then contribute back to the original Repository.
5. Click on Create fork
Congratulations you just created a Copy of [repository](https://github.com/skills/introduction-to-github)!.
<br>
##Excercise<a name="excercise"></a>
Follow the instructions in the [repository's](https://github.com/skills/introduction-to-github) README file to understand how the exercise works, its learning objectives, and how to successfully complete the exercise.
- **Note:**
- You don't need to modify any of the workflow files to complete this exercise. Altering the contents in this workflow can break the exercise's ability to validate your actions, provide feedback, or grade the results.
- Refresh page after 20 seconds when a step completed.
| g_venkatasandeepreddy_b |
1,881,038 | Enhancing ECR Security: Scheduled Automated Container Scans and Slack Notifications | When deploying environments on AWS ECS Fargate, it is essential to integrate container image... | 0 | 2024-06-08T04:12:22 | https://dev.to/suzuki0430/enhancing-ecr-security-scheduled-automated-container-scans-and-slack-notifications-3aki | security, aws, devops, beginners | When deploying environments on AWS ECS Fargate, it is essential to integrate container image vulnerability scanning into your CI pipeline. Initially, we integrated Trivy and Dockle for this purpose. However, to address security risks that could arise between releases, we further developed a system to periodically scan ECR images and notify the results through Slack.
This setup leverages basic AWS resources such as Lambda, EventBridge, S3, and IAM roles, making it easily replicable for anyone with basic AWS experience. We also provide the Terraform code needed for implementation.
For those interested in the initial integration of Trivy and Dockle into the CI, please refer to my previous articles:
- [Mastering Secure CI/CD for ECS with GitHub Actions](https://dev.to/suzuki0430/building-a-secure-cicd-workflow-for-ecs-with-github-actions-gde)
## Implementation
ECR provides a feature to scan images at the time of push, but we've configured a system using Lambda and EventBridge to automate this scan weekly (every Monday at 10:00 AM JST).
In addition, we decided to utilize ZIP deployment for Lambda due to its cost-effectiveness compared to Docker deployment using ECR. The .zip archive necessary for Lambda deployment is stored in an S3 bucket.
The documentation for deploying Lambda functions from a Docker deployment and ZIP deployment can be found here:
- [AWS Documentation on Docker deployment](https://docs.aws.amazon.com/lambda/latest/dg/python-image.html#python-image-clients)
- [AWS Documentation on ZIP deployment](https://docs.aws.amazon.com/lambda/latest/dg/python-package.html)
## Terraform Configuration
The following structure outlines the Terraform setup for this project:
```
.
├── environments
│ └── dev
│ ├── main.tf # Main settings for the Dev environment
│ └── backend.tf # Terraform backend configuration
└── modules
├── s3
│ ├── main.tf # S3 bucket configuration
│ ├── outputs.tf # Outputs definition for the S3 module
│ └── provider.tf # Provider settings for the S3 module
├── iam_roles
│ ├── main.tf # IAM roles configuration
│ ├── outputs.tf # Outputs definition for the IAM roles module
│ └── provider.tf # Provider settings for the IAM roles module
├── eventbridge
│ ├── main.tf # EventBridge configuration
│ └── provider.tf # Provider settings for the EventBridge module
└── lambda
├── main.tf # Lambda configuration
├── outputs.tf # Outputs definition for the Lambda module
├── provider.tf # Provider settings for the Lambda module
├── variables.tf # Variable definitions for the Lambda module
└── ecr_weekly_security_scan
├── app.py # Python script for the Lambda function
├── Dockerfile # Dockerfile for the Lambda environment
├── requirements.txt # List of Python dependencies
└── build.sh # Script to build the Docker image and create the ZIP archive
```
## Lambda Function
The Lambda function performs security scans on the latest ECR image and notifies the results on Slack. If it detects vulnerabilities rated as `CRITICAL` or `HIGH`, it links them directly in the Slack message, enabling instant access to the CVE details.
```python
import os
import boto3
import requests
from botocore.exceptions import ClientError
def lambda_handler(event, context):
ecr_client = boto3.client('ecr')
repository_name = os.environ['REPOSITORY_NAME']
slack_webhook_url = os.environ['SLACK_WEBHOOK_URL_ECR_WEEKLY_SECURITY_SCAN']
# Retrieve the latest image
try:
response = ecr_client.describe_images(
repositoryName=repository_name,
filter={'tagStatus': 'TAGGED'}
)
except ClientError as e:
print(f"Error retrieving images: {e}")
raise e
images = response.get('imageDetails', [])
if not images:
print("No images found.")
return {'statusCode': 200, 'body': 'No images found.'}
latest_image = max(images
, key=lambda x: x['imagePushedAt'])
image_digest = latest_image['imageDigest']
# Get scan results
try:
scan_results = ecr_client.describe_image_scan_findings(
repositoryName=repository_name,
imageId={'imageDigest': image_digest}
)
except ClientError as e:
print(f"Error retrieving scan findings: {e}")
raise e
findings = scan_results['imageScanFindings']['findings']
# Format the message
if not findings:
message = f"No findings for image {repository_name}@{image_digest}"
else:
message = f"*Findings for image {repository_name}@{image_digest}:*\n\n"
max_len_cve_id = max(len(finding['name']) for finding in findings) + 2
max_len_severity = max(len(finding['severity'])
for finding in findings) + 2
for finding in findings:
cve_id = finding['name']
severity = finding['severity']
if severity in ['CRITICAL', 'HIGH']:
cve_id = f"<{cve_url(cve_id)}|{cve_id}>"
severity = f"*{severity}*"
message += f"{cve_id.ljust(max_len_cve_id)} {severity.ljust(max_len_severity)}\n"
# Send message to Slack
response = requests.post(slack_webhook_url, json={"text": message})
if response.status_code != 200:
raise ValueError(
f"Request to Slack returned an error {response.status_code}, the response is:\n{response.text}")
return {
'statusCode': 200,
'body': 'Security scan completed successfully'
}
def cve_url(cve_id):
return f"https://nvd.nist.gov/vuln/detail/{cve_id}"
```
### Automatic ZIP Archive Creation
The following script builds a Docker container, extracts its contents, and packages them into a ZIP file. This archive, named `ecr-weekly-security-scan.zip`, is then uploaded to the aforementioned S3 bucket.
```bash
#!/bin/bash
# Build the Docker image
docker build -t ecr-weekly-security-scan-build .
# Create a container from the image
container_id=$(docker create ecr-weekly-security-scan-build)
# Copy the contents of the container to a local directory
docker cp $container_id:/var/task ./package
# Clean up
docker rm $container_id
# Zip the contents of the local directory
cd package
zip -r ../ecr-weekly-security-scan.zip .
cd ..
# Clean up
rm -rf package
```
The `requirements.txt` and `Dockerfile` are defined as follows:
```requirements.txt
boto3
requests
```
```Dockerfile
FROM public.ecr.aws/lambda/python:3.12
# Install Python dependencies
COPY requirements.txt /var/task/
RUN pip install -r /var/task/requirements.txt --target /var/task
# Copy the Lambda function code
COPY app.py /var/task/
# Set the working directory
WORKDIR /var/task
# Set the CMD to your handler
CMD ["app.lambda_handler"]
```
### Function Deployment
This Terraform code deploys the Lambda function using the created ZIP archive. Environment variables are passed from Terraform to Lambda, which are utilized during the function's execution.
```terraform
resource "aws_lambda_function" "ecr_weekly_security_scan" {
function_name = "ecr-weekly-security-scan"
s3_bucket = var.s3_bucket_lambda_functions_storage_bucket
s3_key = "ecr-weekly-security-scan.zip"
handler = "app.lambda_handler"
runtime = "python3.12"
role = var.iam_role_ecr_weekly_security_scan_lambda_exec_role_arn
timeout = 300 # 5 minutes
environment {
variables = {
REPOSITORY_NAME = "example-ecr-dev"
SLACK_WEBHOOK_URL_ECR_WEEKLY_SECURITY_SCAN = var.slack_webhook_url_ecr_weekly_security_scan
}
}
}
```
### Variable and Output Definitions
The project settings are managed with `variables.tf` and `outputs.tf`, outlined as follows:
```variables.tf
variable "s3_bucket_lambda_functions_storage_bucket" {
description = "The S3 bucket containing the Lambda function code"
type = string
}
variable "iam_role_ecr_weekly_security_scan_lambda_exec_role_arn" {
description = "The ARN of the Lambda execution role"
type = string
}
variable "slack_webhook_url_ecr_weekly_security_scan" {
description = "The URL of the Slack webhook to post messages to"
type = string
sensitive = true
}
```
```outputs.tf
output "lambda_function_ecr_weekly_security_scan_arn" {
value = aws_lambda_function.ecr_weekly_security_scan.arn
}
output "lambda_function_ecr_weekly_security_scan_name" {
value = aws_lambda_function.ecr_weekly_security_scan.function_name
}
output "lambda_function_ecs_task_scheduler_arn" {
value = aws_lambda_function.ecs_task_scheduler.arn
}
output "lambda_function_ecs_task_scheduler_name" {
value = aws_lambda_function.ecs_task_scheduler.function_name
}
```
## S3 Creation
An S3 bucket is created to store the Lambda function's ZIP archive. Since the bucket name must be globally unique, it should be appropriately named.
```terraform
resource "aws_s3_bucket" "lambda_functions_storage" {
bucket = "unique-lambda-functions-storage" # Ensure the name is unique
}
```
### Output Definition
The bucket name is defined in the `outputs.tf` to facilitate references from within the Lambda function's `main.tf`.
```outputs.tf
output "s3_bucket_lambda_functions_storage_bucket" {
value = aws_s3_bucket.lambda_functions_storage.bucket
}
```
## IAM Role
An execution role for the Lambda function is created to allow access to ECR for retrieving image and scan result details. Policies `ecr:DescribeImages` and `ecr:DescribeImageScanFindings` are attached to this role.
```terraform
resource "aws_iam_role" "ecr_weekly_security_scan_lambda_exec_role" {
name = "ecr_weekly_security_scan_lambda_exec_role"
assume_role_policy = jsonencode({
Version = "2012-10-17"
Statement = [{
Action = "sts:AssumeRole"
Effect = "Allow"
Principal = {
Service = "lambda.amazonaws.com"
}
}]
})
}
resource "aws_iam_role_policy_attachment" "ecr_weekly_security_scan_lambda_basic_execution" {
role = aws_iam_role.ecr_weekly_security_scan_lambda_exec_role.name
policy_arn = "arn:aws:iam::aws:policy/service-role/AWSLambdaBasicExecutionRole"
}
resource "aws_iam_policy" "ecr_weekly_security_scan_ecr_policy" {
name = "ecr_weekly_security_scan_ecr_policy"
description = "Policy to allow Lambda to access ECR for scanning images"
policy = jsonencode({
Version = "2012-10-17"
Statement = [
{
Effect = "Allow"
Action = [
"ecr:DescribeImages",
"ecr:DescribeImageScanFindings"
]
Resource = "*" # It is recommended to limit this to specific resource ARNs if possible
}
]
})
}
resource "aws_iam_role_policy_attachment" "ecr_weekly_security_scan_lambda_ecr_policy" {
role = aws_iam_role.ecr_weekly_security_scan_lambda_exec_role.name
policy_arn = aws_iam_policy.ecr_weekly_security_scan_ecr_policy.arn
}
```
### Output Definition
The ARN of the IAM role is set as an output to facilitate references from other Terraform configurations or external systems.
```outputs.tf
output "iam_role_ecr_weekly_security_scan_lambda_exec_role_arn" {
value = aws_iam_role.ecr_weekly_security_scan_lambda_exec_role.arn
}
```
## EventBridge Configuration
Using EventBridge, we set up a schedule to periodically scan ECR container images. Since the schedule is set in UTC, adjustments must be made for local time zones, such as JST.
### Setting Up the EventBridge Rule
Using a cron expression, we configure a rule to trigger the Lambda function every Monday at 1 AM UTC (10 AM JST).
```terraform
resource "aws_cloudwatch_event_rule" "ecr_weekly_security_scan_schedule" {
name = "ECRWeeklySecurityScanSchedule"
schedule_expression = "cron(0 1 ? * MON *)" # 1 AM UTC, which is 10 AM JST
}
```
### Configuring the EventBridge Target
The Lambda function is registered as a target based on the schedule defined in the rule.
```terraform
resource "aws_cloudwatch_event_target" "ecr_weekly_security_scan_target" {
rule = aws_cloudwatch_event_rule.ecr_weekly_security_scan_schedule.name
target_id = "ecrWeeklySecurityScan"
arn = var.lambda_function_ecr_weekly_security_scan_arn
}
```
### Granting Invocation Permissions to Lambda
Permissions are set to safely allow EventBridge to trigger the Lambda function. This configuration is essential to enable direct triggering of the Lambda function by EventBridge.
```terraform
resource "aws_lambda_permission" "ecr
_weekly_security_scan_allow_eventbridge" {
statement_id = "AllowExecutionFromEventBridge"
action = "lambda:InvokeFunction"
function_name = var.lambda_function_ecr_weekly_security_scan_name
principal = "events.amazonaws.com"
source_arn = aws_cloudwatch_event_rule.ecr_weekly_security_scan_schedule.arn
}
```
## Additional Information: Slack Webhook URL Reference
To set up automated notifications on Slack, you need to create an application through the Slack API and enable Incoming Webhooks. The Webhook URL can be found in the Incoming Webhooks section of the Slack app configuration page. This URL is used in the Lambda function to send scan results to the designated Slack channel.
## Conclusion
This guide has demonstrated how to automate ECS on Fargate security scans and notify teams via Slack, utilizing AWS Lambda, EventBridge, S3, and IAM with Terraform for seamless integration. This system enhances security practices by ensuring continuous vulnerability management in the development lifecycle. Adopting such automated processes is crucial for maintaining robust security and operational efficiency in cloud environments. | suzuki0430 |
1,881,037 | Game club | "Chào mừng bạn đến với 789Club, cổng game bài đổi thưởng uy tín và đẳng cấp nhất tại Việt Nam. Trải... | 0 | 2024-06-08T04:04:37 | https://dev.to/gameclub/game-club-3a98 | "Chào mừng bạn đến với 789Club, cổng game bài đổi thưởng uy tín và đẳng cấp nhất tại Việt Nam. Trải nghiệm ngay kho tàng trò chơi phong phú từ game bài, xóc đĩa, tài xỉu đến bắn cá với tỷ lệ đổi thưởng hấp dẫn. Tại 789Club, chúng tôi cam kết mang đến cho bạn môi trường giải trí an toàn, bảo mật thông tin tuyệt đối và dịch vụ hỗ trợ khách hàng chuyên nghiệp 24/7. Tham gia ngay để nhận vô vàn khuyến mãi giá trị và cơ hội trúng thưởng lớn mỗi ngày!
"
Website: http://789club001.com/
Phone: 0965208546
Address: Khu chế xuất Tân Thuận, Z06, Số 13, Tân Thuận Đông, Quận 7, Thành phố Hồ Chí Minh
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| gameclub | |
1,881,036 | 🛠️ How to Review Code Effectively: A Simple Guide for Developers | Code reviews are crucial for maintaining quality and fostering teamwork. Here’s how to make them more... | 0 | 2024-06-08T03:58:05 | https://dev.to/raksbisht/how-to-review-code-effectively-a-simple-guide-for-developers-556e | webdev, programming, productivity, tutorial | Code reviews are crucial for maintaining quality and fostering teamwork. Here’s how to make them more effective:
### 1\. 🔍 Understand the Context
Review the related ticket or user story to understand the problem being solved. This ensures the changes align with project requirements.
### 2\. 🎯 Define Your Objective
Know what you’re looking for: bugs, readability, coding standards, etc. Clear objectives keep your review focused.
### 3\. 🗂️ Break Down the Review
Divide the review into manageable parts:
* **Structure**: Check if the code is well-organized.
* **Logic**: Ensure the implementation is correct and efficient.
* **Style**: Verify adherence to coding standards.
* **Testing**: Ensure there are adequate tests.
### 4\. 👓 Prioritize Readability
Make sure the code is easy to understand:
* **Naming Conventions**: Use clear, descriptive names.
* **Comments**: Ensure complex code is well-commented.
* **Structure**: Keep functions small and focused.
### 5\. ✨ Give Constructive Feedback
Provide helpful feedback:
* **Be Specific**: Point out exact lines or sections.
* **Be Positive**: Highlight what’s done well before suggesting improvements.
* **Be Constructive**: Offer clear suggestions.
* **Be Respectful**: Maintain a positive tone.
### 6\. 🤖 Use Tools and Automation
Enhance the review process with tools:
* **Static Analysis Tools**: Automatically check for coding standards and bugs.
* **Code Review Platforms**: Use tools like GitHub for inline comments and review requests.
* **CI/CD Integration**: Run automated tests to ensure new code doesn’t break the build.
### 7\. 🗣️ Encourage Discussion
Engage in two-way conversations. Encourage authors to explain their decisions and participate in discussions for better understanding.
### 8\. ⚖️ Balance Thoroughness and Timeliness
Aim for thorough yet timely reviews to avoid delays and keep morale high.
### 9\. 🔄 Follow Up
Ensure feedback is addressed and the final code meets quality standards. Conduct follow-up reviews if necessary.
### 10\. 📈 Continuously Improve
Regularly refine your review process:
* **Collect Feedback**: Gather input from team members.
* **Analyze Metrics**: Track review time and defects found.
* **Adapt**: Use insights to improve the process.
### 🏆 Conclusion
Effective code reviews are vital for high-quality software. By understanding the context, setting clear objectives, focusing on readability, providing constructive feedback, using tools, and continuously improving the process, you can enhance your codebase and foster a productive team environment. The goal is to improve the software together. 🚀
| raksbisht |
1,881,035 | Choosing the editor for the next decade | I have used lot of editors over the years. For the last 5 years I have been using VSCode. It has been... | 0 | 2024-06-08T03:57:41 | https://dev.to/rafi993/getting-spell-checker-working-in-neovim-2375 | neovim, vscode, editor, tools | I have used lot of editors over the years. For the last 5 years I have been using VSCode. It has been a great editor. It initially was quite slow but has improved over the years. And the ecosystem itself has a lot of plugins. Potentially making it close to a general purpose IDE. Which is pretty great if you are looking for a single editor that can pretty much work with everything and has support for new thing that comes up out of the box without any configuration without using a full fledged IDE
## Using minimal tools
Over the years I have started to believe that having a minimal set of handpicked tools that you know well so that it doesn't get in your way is better than having a batman utility belt that can do everything by default. Minimal tools doesn't mean using notepad out on a touch screen without keyboard 😅. But more like using a focused tool that is sophisticated enough to do what you want easily and should be extendable in the future if you need it to be
## Choosing the editor
While VSCode is awesome it has been slowly turning into an IDE and has a lot of things by default that I don't need. I wouldn't be surprised if 5 years down the lane they try to replace Visual studio with VSCode. Also I would I have been thinking about switching to something simpler that can serve me well for the next decade. Here is list of things I think I need in a text editor
- It should be fast
- It should be very minimal just enough to serve my editing needs
- It should be extendible in-case I need to do something more in the future
- It should work everywhere
- It should be able to survive the test of time and not be abandoned in the next few years
I initially thought of Sublime Text. Which is a great editor. But it is frozen in time, it does get updates now and then. While it is extendible to some extent but not everything is up for change.
Then I thought of VIM which is something that I tried briefly in the past for sometime
- It was blazingly fast
- It was minimal by default but can be extended to do anything
- It definitely works everywhere
- It has been around for a long time and will be around for a long time
But Vimscript was awful. I really wished it used a general purpose programming language for writing plugins instead of some arcane scripting language. But a lot has changed since then now we have Neovim which has all the goodness of Vim but with a modern plugin system that uses Lua. A general purpose programming language that is easy to learn and use. Once you get the hang of it VIM motions are awesome. You can take them to any editor. There is even a browser [extension](https://chromewebstore.google.com/detail/vimium/dbepggeogbaibhgnhhndojpepiihcmeb) that lets you use VIM motions to navigate the web.
I have been using Neovim for the last few weeks with minimal setup and I am loving it. Let's see how it goes.
Originally posted in https://approxhuman.substack.com/
| rafi993 |
1,881,033 | Can you explain how LPPE works to protect users' location data from precise tracking? | LPPE (Location Privacy Protection Extension) is a technology designed to safeguard users' location... | 0 | 2024-06-08T03:54:00 | https://dev.to/richerdjames/can-you-explain-how-lppe-works-to-protect-users-location-data-from-precise-tracking-afp | [LPPE](https://techboltify.com/what-is-the-lppe-service-android/) (Location Privacy Protection Extension) is a technology designed to safeguard users' location privacy by preventing precise tracking. Here's how LPPE works to protect users' location data:
## **How LPPE Protects Location Data:**
## **Obfuscation of Location Data:**
LPPE operates by obfuscating or altering the precise location data before it's shared with apps or services. Instead of providing exact GPS coordinates, LPPE introduces randomization or fuzziness to the location information.
## **Randomization Techniques:**
LPPE employs various randomization techniques such as adding noise or jitter to the GPS coordinates. This makes it difficult for third parties to accurately pinpoint the user's exact location.
## **Grid-based Privacy Zones:**
LPPE may divide the geographic area into grid cells and report the user's location as the center of a randomly selected cell rather than the precise location. This method adds a level of anonymity to the user's whereabouts.
## **Temporal Randomization:**
LPPE can introduce temporal randomization by delaying or randomizing the updates of location data. This prevents continuous tracking by introducing variability in location updates.
## **Selective Precision:**
LPPE allows users to control the precision of location data shared with different apps. Users can choose to provide precise location information to trusted apps while obfuscating it for others, enhancing privacy.
## **Client-Side Processing:**
LPPE processes location data locally on the device, ensuring that the obfuscated data is transmitted to servers or apps. This reduces the risk of sensitive location data being intercepted during transmission.
## **Benefits of LPPE:**
**Enhanced Privacy**: LPPE protects users' location privacy by making it harder for unauthorized parties to track their precise whereabouts.
**Balanced Utility:** LPPE maintains the utility of location-based services while adding a layer of privacy protection, allowing users to enjoy location services without compromising privacy.
**User Control:** LPPE gives users more control over their location data by allowing them to choose the level of precision they want to share with different apps.
**Mitigating Location Tracking Risks:** LPPE reduces the risk of location-based tracking for purposes like targeted advertising or unauthorized surveillance.
## **Conclusion:**
LPPE plays a crucial role in preserving users' location privacy in an era where location data is extensively utilized by apps and services. By obfuscating or randomizing location data, LPPE prevents precise tracking while still allowing users to benefit from location-based services. It offers users greater control over their privacy and helps mitigate potential risks associated with location tracking. | richerdjames | |
1,892,381 | Centralizing Log Collection for webMethods IS with Grafana Loki | Introduction Observability is now a critical component of modern industry. In this... | 0 | 2024-06-18T12:27:45 | https://tech.forums.softwareag.com/t/centralizing-log-collection-for-webmethods-is-with-grafana-loki/296741/1 | grafana, loki, webmethods, logging | ---
title: Centralizing Log Collection for webMethods IS with Grafana Loki
published: true
date: 2024-06-08 03:26:50 UTC
tags: Grafana, Loki, webmethods, logging
canonical_url: https://tech.forums.softwareag.com/t/centralizing-log-collection-for-webmethods-is-with-grafana-loki/296741/1
---
## Introduction
Observability is now a critical component of modern industry. In this article, we will delve into a crucial aspect of observability: the aggregation of webMethods Integration Server logs into a unified logging system using Loki and visualizing them in real-time with Grafana dashboards for monitoring and analysis. We will employ Promtail for log capturing.
### Architecture
In the architecture diagram below, there are three webMethods Integration Server deployments. Each deployment incorporates a Promtail instance, which serves as a log collecting agent, running as a sidecar within the same pod as the Integration Server container. These Promtail instances collect logs from their respective Integration Server deployments. Subsequently, the collected logs are then forwarded to Loki, a log aggregation system. In the Grafana dashboard, Loki is configured as a data source, enabling further analysis of the logs.
### Steps to Collect Logs from webMethods Integration Servers Running in a Kubernetes Environment
We will use Helm charts to deploy all the components—Grafana Loki, Grafana, Prometheus, and webMethods Integration Server—in a Kubernetes cluster. This deployment can be accomplished in two steps:
1. Install the loki-Stack
2. Create helm chart for IS with promtail running as a sidecar
#### Install Loki-Stack
1. Add the helm-chart repo. The Loki-Stack Helm Chart is a package that allows you to deploy Grafana Loki, along with its dependencies, using Helm, which is a package manager for Kubernetes.
```
helm repo add grafana https://grafana.github.io/helm-charts
helm repo update
```
2. By default, Grafana is disabled. To enable Grafana, edit the configuration file. You will also see configurations for Fluentd, Prometheus, and other components. Modify the file according to your requirements. An example of `loki-stack-values.yaml` is shown below.
```
helm show values grafana/loki-stack > loki-stack-values.yaml
loki:
enabled: true
isDefault: true
url: http://{{(include "loki.serviceName" .)}}:{{ .Values.loki.service.port }}
readinessProbe:
httpGet:
path: /ready
port: http-metrics
initialDelaySeconds: 45
livenessProbe:
httpGet:
path: /ready
port: http-metrics
initialDelaySeconds: 45
datasource:
jsonData: "{}"
uid: ""
promtail:
enabled: true
config:
logLevel: info
serverPort: 3101
clients:
- url: http://{{ .Release.Name }}:3100/loki/api/v1/push
grafana:
enabled: true
sidecar:
datasources:
label: ""
labelValue: ""
enabled: true
maxLines: 1000
image:
tag: 10.3.3
```
3. Create a namespace and install the loki-stack in it.
```
kubectl create namespace <namespace name>
helm install loki-stack grafana/loki-stack --namespace <namespace> -f <stack-value>.yaml
```
4. To log in to Grafana, you need to port-forward the Grafana port to access the Grafana dashboard from your localhost and retrieve the password from the secret. Follow the steps below:
```
# Port forward grafana :
kubectl -n <namespace> port-forward service/loki-stack-grafana 3000:80
# Get the password from the secret to login to grafana dashboard
kubectl -n <namespace> get secret loki-stack-grafana -o yaml
echo "<replace this with base64 encoded value from the above command>" | base64 -d
```
#### Create a Helm chart for the Integration Server (IS) with Promtail running as a sidecar.
1. Now that the loki-stack in configured, its time to create a helm-chart for Integration Server.
```
helm create is-chart
```
2. Create a `deployment.yaml` file with the Integration Server (IS) and Promtail running as a sidecar. Here is an example of the `deployment.yaml` file. In this configuration, the Integration server is pulled from the Docker registry `softwareag/webmethods-microservicesruntime:10.15.0.10-slim` and mounts the IS logs folder `/opt/softwareag/IntegrationServer/logs`, allowing Promtail to collect logs from IS. With `-config.expand-env=true` enabled, Promtail dynamically replaces `${POD_NAME}` with the actual value of the `POD_NAME`, enabling dynamic configuration when there are multiple IS deployments.
```
apiVersion: apps/v1
kind: Deployment
metadata:
name: is-deployment
spec:
replicas: 1
selector:
matchLabels:
app: is
template:
metadata:
labels:
app: is
spec:
containers:
- name: is-container
image: softwareag/webmethods-microservicesruntime:10.15.0.10-slim
imagePullPolicy: Always
ports:
- containerPort: 5555
- containerPort: 8091
securityContext:
runAsUser: 0 # Running as root
volumeMounts:
- name: is-logs
mountPath: /opt/softwareag/IntegrationServer/logs
# Sidecar container for Promtail
- name: promtail
image: grafana/promtail:2.9.3
args:
- -config.file=/etc/promtail/promtail-config.yaml
- -client.url=http://loki-stack:3100/loki/api/v1/push
- -config.expand-env=true
env:
- name: POD_NAME
value: "is-one"
volumeMounts:
- name: is-logs
mountPath: /opt/softwareag/IntegrationServer/logs
- name: config-volume
mountPath: /etc/promtail
readOnly: true
securityContext:
runAsUser: 0 # Running as root
volumes:
- name: is-logs
emptyDir: {}
- name: config-volume
configMap:
name: promtail-config
```
3. If you have multiple applications, you can create another deployment based on the above example. For instance, below is the second deployment YAML for the second Integration server with Promtail running as a sidecar.
```
apiVersion: apps/v1
kind: Deployment
metadata:
name: is-deployment-two
spec:
replicas: 1
selector:
matchLabels:
app: is-two
template:
metadata:
labels:
app: is-two
spec:
containers:
- name: is-container-two
image: softwareag/webmethods-microservicesruntime:10.15.0.10-slim
imagePullPolicy: Always
ports:
- containerPort: 5555
- containerPort: 8091
securityContext:
runAsUser: 0 # Running as root
volumeMounts:
- name: is-logs-two
mountPath: /opt/softwareag/IntegrationServer/logs
# Sidecar container for Promtail
- name: promtail-two
image: grafana/promtail:2.9.3
args:
- -config.file=/etc/promtail/promtail-config.yaml
- -client.url=http://loki-stack:3100/loki/api/v1/push
- -config.expand-env=true
env:
- name: POD_NAME
value: "is-two"
volumeMounts:
- name: is-logs-two
mountPath: /opt/softwareag/IntegrationServer/logs
- name: config-volume
mountPath: /etc/promtail
readOnly: true
securityContext:
runAsUser: 0 # Running as root
volumes:
- name: is-logs-two
emptyDir: {}
- name: config-volume
configMap:
name: promtail-config
```
4. Create a ConfigMap for `promtail-config.yaml`. In the following configuration map, we collect both `server.log` and `WMERROR.log` from the Integration Servers. If there are multiple deployments of Integration Servers, the `pod: ${POD_NAME}` dynamically retrieves the value of the Integration server as defined in the `deployment.yaml` file above.
```
apiVersion: v1
kind: ConfigMap
metadata:
name: promtail-config
data:
promtail-config.yaml: |
scrape_configs:
- job_name: islog
static_configs:
- targets:
- localhost
labels:
job: serverlog
pod: ${POD_NAME}
__path__ : /opt/softwareag/IntegrationServer/logs/server.log
- targets:
- localhost
labels:
job: errorlog
pod: ${POD_NAME}
__path__ : /opt/softwareag/IntegrationServer/logs/WMERROR*.log
```
5. Create a helm package and install the above deployment. Additionally, verify that all pods are running healthily.
```
helm package .
helm install <install-name> .\is-chart-0.1.0.tgz -n <namespace>
kubectl get all -n <namespace>
```
6. To access the Grafana dashboard, log in and navigate to the “Explore” section. Here, you can execute queries based on the labels set in the Promtail configuration and view all your Integration Server (IS) deployment logs. You can filter logs by using the labels defined in the Promtail configuration. For instance, you can execute queries to filter logs based on “errorlog” or “serverlog” as defined in the above promtail-config.yaml file.
As we conclude, it’s crucial to recognize the significance of effective log management in troubleshooting and resolving issues within the webMethods Integration Server, particularly in complex customer environments. By using tools like Loki to organize and display logs, organizations can understand how their systems are working with webMethods Integration Servers. With a unified logging system in place, teams can promptly identify real-time events and expedite problem resolution, thereby enhancing the reliability and effectiveness of their systems.
[Read full topic](https://tech.forums.softwareag.com/t/centralizing-log-collection-for-webmethods-is-with-grafana-loki/296741/1) | techcomm_sag |
1,881,010 | Understanding Generative AI and LLMs | Generative AI and Large Language Models (LLMs) have emerged as powerful tools transforming various... | 0 | 2024-06-08T03:10:23 | https://dev.to/gervaisamoah/understanding-generative-ai-and-llms-47cb | ai, npl, machinelearning | Generative AI and Large Language Models (LLMs) have emerged as powerful tools transforming various industries in the rapidly evolving field of artificial intelligence. From automating content creation to enhancing customer service, these technologies offer innovative solutions once thought impossible. In this blog post, we'll delve into what Generative AI and LLMs are, how they work, and their practical applications.
## What is Generative AI and LLM?
**Generative AI** refers to a type of artificial intelligence that can create new content, such as text, images, or music, based on the data it has been trained on. Unlike traditional AI, which is primarily designed for recognizing patterns and making predictions, Generative AI can produce novel and creative outputs.
**Large Language Models** (LLMs) are a subset of Generative AI specifically focused on text generation. These models are trained on vast amounts of textual data and can understand, generate, and manipulate human language in a coherent and contextually relevant manner.
## How Generative AI Works
### Supervised Learning and Labeling
At the core of Generative AI is supervised learning, a method where the model is trained on labeled data. The AI takes an input, processes it through complex algorithms, and produces an output. Each piece of input data is associated with an output label, and the model learns to map inputs to the correct outputs.
The success of Generative AI largely depends on the scale of the data used for training. The more diverse and comprehensive the dataset, the better the AI can understand nuances and generate accurate results.
### Text Generation Using LLMs
When it comes to text generation, LLMs break down a sentence into smaller units, process each unit, and generate outputs for each one. This iterative process ensures that the final output is coherent and contextually appropriate.
For example, in training an LLM for a reputation monitoring application, the model is fed sample customer reviews labeled as “positive” or “negative.” Through this training, the AI learns to recognize patterns and sentiments in the reviews. It can then take real customer reviews as input and generate a summary of the brand's reputation as output.
ChatGPT is a more advanced example of an LLM that has been trained on a vast corpus of text data to understand and generate human-like responses across a wide range of topics.
## LLMs as a Partner
LLM can serve as a valuable partner, helping users brainstorm ideas, answer questions, and explore new concepts. By interacting with the AI, users can gain new insights and perspectives. However, it's crucial to double-check the responses generated by AI due to the phenomenon known as **hallucination**. Hallucination in AI occurs when the model generates plausible but incorrect or nonsensical information. This makes it essential to verify the accuracy of the AI's outputs.
### Web Search vs. LLMs
When it comes to serious topics like healthcare, it's advisable to rely on traditional web search, which provides access to verified and authoritative sources. On the other hand, LLMs are ideal for more esoteric or creative tasks, where the generation of novel ideas is more important than factual accuracy.
## What LLMs are Good For
### Writing Assistance
LLMs can assist in various writing tasks, such as suggesting names for products, answering questions, drafting emails, and creating content. Its ability to generate diverse ideas makes it a valuable tool for writers and marketers.
### Reading Assistance
LLMs can also help with reading tasks, such as analyzing client emails to identify complaints, summarizing documents, and extracting key information from texts. This can save time and improve efficiency in handling communications.
### Chatting and Customer Service
As a chatbot, LLMs can enhance customer service by providing instant responses, guiding users through processes, and maintaining dynamic FAQs. This leads to improved customer satisfaction and streamlined support operations.
## Conclusion
Generative AI and LLMs in particular are revolutionizing the way we interact with technology. By understanding their capabilities and limitations, we can harness their power to improve various aspects of our personal and professional lives. As these technologies continue to evolve, their potential applications will only expand, offering even more innovative solutions to complex challenges.
| gervaisamoah |
1,881,009 | Exploring Functional Programming in Java (for JavaScript Developers) | Functional programming (FP) has gained significant traction in recent years for its emphasis on... | 0 | 2024-06-08T03:04:13 | https://dev.to/gervaisamoah/exploring-functional-programming-in-java-for-javascript-developers-372 | java, functional, java8, programming | Functional programming (FP) has gained significant traction in recent years for its emphasis on immutability, pure functions, and higher-order functions. While JavaScript can be qualified as inherently functional, diving into functional programming in Java, an object-oriented programming language, might seem like a daunting task for JavaScript developers. However, Java provides robust support for functional programming through its `java.util.function` package, enabling developers to embrace FP principles seamlessly.
## Understanding Functional Programming
At its core, functional programming is a programming paradigm that treats computation as the evaluation of mathematical functions and avoids changing state and mutable data. In Java, developers can leverage functional programming paradigms using the `java.util.function` package. This package introduces *functional interfaces*, *lambda expressions*, and *streams*, which are essential components of functional programming in Java.
## Functional Interfaces and Lambda Expressions
Functional interfaces play a pivotal role in functional programming in Java. These interfaces have exactly one abstract method and can have multiple default or static methods. They act as blueprints for lambda expressions, which are concise representations of anonymous functions.
[IMAGE HERE]
For instance, the `Consumer` interface in Java is akin to *callbacks* in JavaScript, allowing developers to pass behavior as an argument to methods. The `Function` interface on the other hand, with its `andThen` method enables function chaining, where the output of one function becomes the input of another. This approach fosters composability and code readability, akin to method chaining in JavaScript.
In addition to `Consumer` and `Function`, here are other core functional interfaces provided by the `java.util.function` package:
[IMAGE HERE]
## Creating Custom Functional Interfaces
Developers can create custom functional interfaces in Java using the `@FunctionalInterface` annotation. This annotation ensures that the interface has only one abstract method, providing clarity to other developers about its functional nature. It also enables compiler checks to prevent any accidental addition of extra abstract methods.
## Exploring Streams in Java
Java streams are a powerful feature for processing collections of objects in a functional style. Unlike JavaScript streams, Java streams are not lazy by default. Instead, they can be either *intermediate* or *terminal*. Intermediate operations return a new stream, allowing further operations to be chained, while terminal operations produce a result or side effect.
### Key Stream Operations:
- `anyMatch`: Returns true if any element of the stream matches the given predicate (Intermediate).
- `allMatch`: Returns true if all elements of the stream match the given predicate (Intermediate).
- `filter`: Filters elements based on a predicate (Intermediate).
- `forEach`: Acts as each element of the stream (Terminal).
- `map`: Transforms each element of the stream using a function (Intermediate).
- `reduce`: Combines elements of the stream into a single result. Here, the initial value comes first (Terminal).
- `sorted`: Sorts the elements of the stream (Intermediate).
- `collect`: Performs a mutable reduction operation on the elements of the stream (Terminal).
## Handling Exceptions in Java
In Java, exceptions play a crucial role in error handling. Exceptions are categorized into two types: *checked* and *unchecked*. Checked exceptions are those that must be handled explicitly by the developer, either by catching them or declaring them in the method signature. Unchecked exceptions, on the other hand, do not require explicit handling. Understanding and effectively managing exceptions is essential for writing robust and reliable Java applications.
## Conclusion
While Java is primarily an object-oriented language, its support for functional programming makes it a versatile choice for developers. By leveraging features such as functional interfaces, lambda expressions, and streams, you can embrace functional programming paradigms and write less verbose code.
| gervaisamoah |
1,881,008 | Cmd, openjdk 삭제 | #위치 찾기 java where Enter fullscreen mode Exit fullscreen mode #삭제 후... | 0 | 2024-06-08T03:03:18 | https://dev.to/sunj/cmd-openjdk-sagje-46cn | ```
#위치 찾기
java where
```
```
#삭제 후 다시 확인
java -version
```
| sunj | |
1,881,007 | thuexesolati asiatransport | Bang gia dich vu thue xe dcar solati 11 cho tai hanoi asia transport Website:... | 0 | 2024-06-08T03:03:17 | https://dev.to/thuexesolati/thuexesolati-asiatransport-8a1 | Bang gia dich vu thue xe dcar solati 11 cho tai hanoi asia transport
Website: https://www.thuexelimousinehanoi.com/xe-dcar-solati-11-cho
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Address: 80B Nguyen Van Cu Street, Long Bien District
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| thuexesolati | |
1,881,006 | Navigating the Container Orchestration Ocean with AWS ECS | Navigating the Container Orchestration Ocean with AWS ECS Introduction to AWS... | 0 | 2024-06-08T03:02:21 | https://dev.to/virajlakshitha/navigating-the-container-orchestration-ocean-with-aws-ecs-pgp | 
# Navigating the Container Orchestration Ocean with AWS ECS
### Introduction to AWS Elastic Container Service (ECS)
In today's rapidly evolving technological landscape, containerization has emerged as a game-changer for software development and deployment. Containers provide a lightweight and portable environment for applications, abstracting away infrastructure dependencies and enabling seamless scalability. AWS Elastic Container Service (ECS) takes center stage as a fully managed container orchestration service that simplifies the deployment, management, and scaling of containerized applications on AWS.
At its core, ECS provides a robust platform for running containers at scale. It eliminates the need for you to install and manage your own container orchestration software, allowing you to focus on building and deploying your applications. ECS offers a rich set of features that streamline the container lifecycle, making it an ideal choice for businesses of all sizes.
### Core Components of AWS ECS
To understand the power of ECS, let's break down its key components:
1. **Clusters**: A logical grouping of Amazon EC2 instances that form the foundation of your ECS infrastructure. These clusters act as the platform on which your containers are launched and managed.
2. **Task Definitions**: Think of task definitions as blueprints for your containers. They define the container image to use, the required resources (CPU, memory), networking configuration, and other relevant settings. Essentially, it tells ECS how to run your application.
3. **Tasks**: A task represents a running instance of your containerized application. When you launch a task in ECS, it uses the specified task definition to create and run the container on a cluster instance.
4. **Services**: For long-running applications that require high availability, ECS services are your go-to solution. By defining a desired number of tasks, ECS ensures that your application remains up and running, even if underlying instances fail.
5. **Container Networking**: ECS integrates seamlessly with Amazon VPC, allowing you to launch your containers within your own private network. This provides a secure and isolated environment for your applications.
### Use Cases for AWS ECS
The versatility of ECS makes it a suitable solution for a wide spectrum of use cases, including but not limited to:
**1. Microservices Architecture:**
- ECS excels in deploying and managing microservices-based applications.
- Each microservice can be packaged and deployed as a separate container, enabling independent scaling and fault tolerance.
- ECS's service discovery capabilities further simplify communication between these services.
**Example:** Imagine an e-commerce platform with microservices for user authentication, product catalog, shopping cart, and payment processing. Each service runs independently in separate containers orchestrated by ECS. If the product catalog service experiences a surge in traffic, ECS can automatically scale up that specific service without affecting the others, ensuring optimal performance.
**2. Batch Processing:**
- ECS is well-suited for batch processing workloads that involve running tasks to completion without user interaction.
- You can define tasks for data processing, image manipulation, or any other batch job, and ECS will manage the execution efficiently.
**Example:** A financial institution can utilize ECS to run nightly batch jobs for processing transactions, generating reports, or updating customer balances. ECS ensures that these jobs are executed reliably and efficiently within the defined schedule.
**3. Machine Learning Inference:**
- Deploying machine learning models for inference is a common use case for ECS.
- Package your trained models as containerized APIs and deploy them using ECS.
- ECS handles scaling based on demand, ensuring low latency for real-time predictions.
**Example:** A healthcare company might deploy a machine learning model for medical image analysis. The model runs within an ECS container, processing images uploaded by healthcare professionals and providing real-time diagnostic insights.
**4. CI/CD Pipelines:**
- Integrate ECS seamlessly into your CI/CD pipelines to automate the deployment process.
- Build and push container images to a repository like Amazon ECR (Elastic Container Registry), and configure ECS to automatically deploy the latest version of your application whenever a new image is available.
**Example:** A software development team can leverage ECS to automate the deployment of their web application. When code changes are pushed to a Git repository, a CI/CD pipeline triggers a new build, pushes the container image to ECR, and updates the ECS service, ensuring that the latest code is deployed with minimal downtime.
**5. Web Applications and APIs:**
- Host highly available and scalable web applications and APIs using ECS.
- Use load balancers (e.g., AWS Elastic Load Balancer) to distribute traffic across multiple instances of your application, ensuring high availability and responsiveness.
**Example:** A social media platform can utilize ECS to host its backend API. ECS manages the deployment and scaling of the API across multiple instances, handling a large volume of user requests and content updates. Load balancing ensures that traffic is distributed evenly, providing a smooth user experience.
### Exploring Alternatives: Comparing Container Orchestration Tools
While ECS reigns supreme in the AWS ecosystem, it's essential to acknowledge other prominent container orchestration tools available in the market:
1. **Kubernetes (K8s):** Widely recognized as the industry-standard container orchestrator, Kubernetes is an open-source platform known for its extensibility and robust feature set.
**Key Features:**
- **Self-Healing:** Automatically restarts, replaces, or reschedules containers that fail.
- **Automated Rollouts and Rollbacks:** Enables gradual deployments with canary and blue/green strategies.
- **Horizontal Scaling:** Adjusts the number of running containers based on CPU utilization, memory, or custom metrics.
2. **Docker Swarm:** Integrated directly into the Docker engine, Docker Swarm offers a simpler approach to container orchestration, making it a suitable option for smaller deployments.
**Key Features:**
- **Easy Setup and Configuration:** Simple commands and intuitive concepts for getting started quickly.
- **Decentralized Design:** Each node in a Swarm cluster can participate in orchestration decisions.
- **Service Discovery:** Built-in DNS-based service discovery simplifies communication between containers.
### Conclusion
AWS ECS has established itself as a cornerstone of modern application deployment and management within the AWS cloud. Its ability to seamlessly orchestrate containers, scale applications on demand, and integrate with other AWS services makes it an indispensable tool for developers and businesses striving for agility and efficiency in their cloud operations. As the containerization landscape continues to evolve, ECS stands poised to empower organizations with the tools they need to navigate the complexities of cloud-native applications.
### Advanced Use Case: Building a Real-time Data Processing Pipeline with ECS, Kinesis, and Lambda
**Scenario:** Imagine a real-time analytics platform that processes a high volume of streaming data from various sources, such as social media feeds, sensor data, or financial transactions. The platform needs to ingest, transform, and analyze this data with low latency to provide actionable insights.
**Solution Architecture:**
1. **Data Ingestion:** Utilize Amazon Kinesis Data Streams to capture and durably store the high-velocity data streams.
2. **Real-time Processing:**
- Employ ECS to run a cluster of containers running Apache Kafka consumers. These consumers read data from Kinesis streams in real-time.
- Within the containers, use Apache Spark Streaming or Apache Flink for data transformation and analysis. These frameworks are specifically designed for processing streaming data.
3. **Serverless Transformation:** Integrate AWS Lambda functions to perform lightweight data transformations or enrichments on the processed data.
4. **Storage and Analytics:** Persist the processed data to a data store like Amazon S3 or Amazon Redshift for further analysis and reporting.
**Benefits of this Architecture:**
- **Scalability:** ECS allows you to scale the processing capacity up or down dynamically based on the volume of incoming data, ensuring optimal performance.
- **Fault Tolerance:** ECS's self-healing capabilities ensure that if a container fails, it's automatically replaced, maintaining the integrity of your data pipeline.
- **Real-time Insights:** By leveraging stream processing frameworks within ECS, you can gain valuable insights from your data in real-time.
- **Cost-Effectiveness:** Utilize serverless components like Lambda to reduce costs and optimize resource utilization.
This advanced use case highlights the power and flexibility of ECS when combined with other AWS services to create sophisticated and scalable cloud-native applications.
| virajlakshitha |
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