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Lua - Web Programming | Lua is a highly flexible language and it is often used in multiple platforms including web applications. The Kepler community that was formed in 2004 to provide open source web components in Lua.
Even though, there are other web frameworks using Lua that have been developed, we will be primarily focusing on the compone... | [
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"text": "Lua is a highly flexible language and it is often used in multiple platforms including web applications. The Kepler community that was formed in 2004 to provide open source web components in Lua."
},
{
"code": null,
"e": 2457,
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How to Convert JS Object to JSON String in JQuery/Javascript? - GeeksforGeeks | 03 Aug, 2021
Given a JS Object and is the task to Convert it to JSON String.Using JSON.stringify() method: The JSON.stringify() method in javascript allows us to take a JavaScript object or Array and create a JSON string out of it.
Syntax:
JSON.stringify(value, replacer, space)
Approach:
Store the JSON object into the ... | [
{
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"text": "\n03 Aug, 2021"
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"text": "Given a JS Object and is the task to Convert it to JSON String.Using JSON.stringify() method: The JSON.stringify() method in javascript allows us to take a JavaScr... |
Pandas DataFrame: Playing with CSV files | by Deepak K Gupta (DAKSH) | Towards Data Science | CSV stands for Comma Separated Values, A popular way of representing and storing tabular, column oriented data in a persistent storage
Pandas DataFrames is generally used for representing Excel Like Data In-Memory. In all probability, most of the time, weβre going to load the data from a persistent storage, which could... | [
{
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"text": "CSV stands for Comma Separated Values, A popular way of representing and storing tabular, column oriented data in a persistent storage"
},
{
"code": null,
"e": 521,
"s": 306,
"text": "Pandas DataFrames is generally used for representin... |
PyQt5 QSpinBox - Setting Auto Fill Background property - GeeksforGeeks | 17 May, 2020
In this article we will see how we can set the auto fill property of the spin box, this property will cause Qt to fill the background of the spin box before invoking the paint event. The color used is defined by the QPalette.Window color role from the spin boxβs palette. By default this property is false.
... | [
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"text": "In this article we will see how we can set the auto fill property of the spin box, this property will cause Qt to fill the background of the spin box before invoki... |
SQL naming standards | Towards Data Science | This is my 20th year working with SQL (eek!), and Iβve shared my 10 key learnings to help make sure your SQL code is easy to read, debug, and maintain.
The key to success is, of course, to enforce these (or your own standards) across your Enterprise. Tip 10 discusses how you can do this.
So, in no particular order, let... | [
{
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"text": "This is my 20th year working with SQL (eek!), and Iβve shared my 10 key learnings to help make sure your SQL code is easy to read, debug, and maintain."
},
{
"code": null,
"e": 461,
"s": 324,
"text": "The key to success is, of course, ... |
K-Palindrome | Practice | GeeksforGeeks | A string is k palindrome if it can be transformed into a palindrome on removing at most k characters from it. Your task is to complete the function is_k_palin which takes two arguments a string str and a number N . Your function should return true if the string is k palindrome else it should return false.
Input:
The f... | [
{
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"text": "A string is k palindrome if it can be transformed into a palindrome on removing at most k characters from it. Your task is to complete the function is_k_palin which takes two arguments a string str and a number N . Your function should return true if the ... |
DAX Statistical - RANKX function | Returns the ranking of a number in a list of numbers for each row in the table.
RANKX (<table>, <expression>, [<value>], [<order>], [<ties>])
table
Any DAX expression that returns a table of data over which the expression is evaluated.
expression
Any DAX expression that returns a single scalar value.
The expression is... | [
{
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"text": "Returns the ranking of a number in a list of numbers for each row in the table."
},
{
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"s": 2081,
"text": "RANKX (<table>, <expression>, [<value>], [<order>], [<ties>])\n"
},
{
"code": null,
"e": 2... |
βMOVIE RECOMMENDATION SYSTEM β. Welcome to the Fifth Episode of... | by Ashis Kumar Panda | Towards Data Science | Welcome to the Fifth Episode of Fastdotai where we will deal with Movie Recommendation System. Before we start , I would like to thank Jeremy Howard and Rachel Thomas for their efforts to democratize AI.
To make best out of this blog post Series , feel free to explore the first Part of this Series in the following orde... | [
{
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"text": "Welcome to the Fifth Episode of Fastdotai where we will deal with Movie Recommendation System. Before we start , I would like to thank Jeremy Howard and Rachel Thomas for their efforts to democratize AI."
},
{
"code": null,
"e": 496,
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Using PCA and Clustering To Analyze Genes and Leukemia | by Leihua Ye, PhD | Towards Data Science | In the world of Machine Learning, unsupervised learning is the process of drawing inference without labeled outcomes. Principal Component Analysis (PCA) and Clustering are two common unsupervised learning techniques.
PCA is the process of reducing high dimensions into a few layers of key features. After dimension reduc... | [
{
"code": null,
"e": 389,
"s": 172,
"text": "In the world of Machine Learning, unsupervised learning is the process of drawing inference without labeled outcomes. Principal Component Analysis (PCA) and Clustering are two common unsupervised learning techniques."
},
{
"code": null,
"e": 5... |
Making an SAP ABAP program to wait | You can use WAIT to hold the program for few seconds. Here is the syntax
WAIT UP TO 36 SECONDS
However, you need to be careful about using it. WAIT does an implicit commit. So you need to be sure that the commit does not corrupt the database. It also releases the work process.
An alternative is to use below code β
CALL... | [
{
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"text": "You can use WAIT to hold the program for few seconds. Here is the syntax"
},
{
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"s": 1135,
"text": "WAIT UP TO 36 SECONDS"
},
{
"code": null,
"e": 1340,
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"text": "However, you nee... |
HashSet contains() Method in Java - GeeksforGeeks | 26 Nov, 2018
The Java.util.HashSet.contains() method is used to check whether a specific element is present in the HashSet or not. So basically it is used to check if a Set contains any particular element.
Syntax:
Hash_Set.contains(Object element)
Parameters: The parameter element is of the type of HashSet. This is the... | [
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"code": null,
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"text": "The Java.util.HashSet.contains() method is used to check whether a specific element is present in the HashSet or not. So basically it is used to check if a Set con... |
Java Program to Extract Content from a Java's .class File - GeeksforGeeks | 02 Nov, 2020
In this article, we are going to extract the contents of the Java class file using the Apache Tika library. Apache Tika is used for document type detection and content extraction from various file formats. It uses various document parsers and document type detection techniques to detect and extract data. I... | [
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"text": "In this article, we are going to extract the contents of the Java class file using the Apache Tika library. Apache Tika is used for document type detection and con... |
Program to find number of ways we can decode a message in Python | Suppose we have mapping like 'a' = 1, 'b' = 2, ... 'z' = 26, and we have an encoded message message string, we have to count the number of ways it can be decoded.
So, if the input is like message = "222", then the output will be 3, as This can be decoded 3 ways: bbb, bv, and vb.
To solve this, we will follow these step... | [
{
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"text": "Suppose we have mapping like 'a' = 1, 'b' = 2, ... 'z' = 26, and we have an encoded message message string, we have to count the number of ways it can be decoded."
},
{
"code": null,
"e": 1342,
"s": 1225,
"text": "So, if the input is... |
How to create linear gradient background using CSS ? - GeeksforGeeks | 03 Aug, 2021
In CSS, we can use the background-color property to set the background color of an element to a specific color. Sometimes we want to add more styling to the element when setting the background color by using the linear-gradient property. CSS linear-gradient property lets you display smooth transitions betw... | [
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"text": "In CSS, we can use the background-color property to set the background color of an element to a specific color. Sometimes we want to add more styling to the elemen... |
How to select sum or 0 if no records exist in MySQL? | You can use aggregate function sum() inside COALESCE(). The below syntax returns the sum of all if the record exists otherwise 0 is returned. The syntax is as follows.
select COALESCE(sum(yourColumnName2), 0) AS anyVariableName from yourTableName
where yourColumnName1 like '%yourValue%';
To understand the above syntax,... | [
{
"code": null,
"e": 1230,
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"text": "You can use aggregate function sum() inside COALESCE(). The below syntax returns the sum of all if the record exists otherwise 0 is returned. The syntax is as follows."
},
{
"code": null,
"e": 1351,
"s": 1230,
"text": "select COALESC... |
XGBoost for Regression - GeeksforGeeks | 07 Oct, 2021
The results of the regression problems are continuous or real values. Some commonly used regression algorithms are Linear Regression and Decision Trees. There are several metrics involved in regression like root-mean-squared error (RMSE) and mean-squared-error (MAE). These are some key members of XGBoost m... | [
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"code": null,
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"text": "The results of the regression problems are continuous or real values. Some commonly used regression algorithms are Linear Regression and Decision Trees. There are ... |
Lazy load data in R. Techniques for loading and processing... | by Nischal M | Towards Data Science | Recently I found myself in a position where I needed to load and process large data files to display on a Shiny dashboard, but loading and processing the whole file, in one go, took a long time. This would force the user to stare at a blank screen for sometime before the results are displayed. I came up with a crude so... | [
{
"code": null,
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"s": 171,
"text": "Recently I found myself in a position where I needed to load and process large data files to display on a Shiny dashboard, but loading and processing the whole file, in one go, took a long time. This would force the user to stare at a blank screen for som... |
Sum of first n natural numbers in C Program | The concept of finding the sum of sum of integers is found such that first, we will find the sum of numbers up to n and then add all the sums to get a value which will be the sum of sum which is our desired sum.
For this problem, we are given a number n up to which we have to find the sum of the sum. Let's take an exam... | [
{
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"text": "The concept of finding the sum of sum of integers is found such that first, we will find the sum of numbers up to n and then add all the sums to get a value which will be the sum of sum which is our desired sum."
},
{
"code": null,
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Python | Pandas Series.multiply() | 11 Feb, 2019
Pandas series is a One-dimensional ndarray with axis labels. The labels need not be unique but must be a hashable type. The object supports both integer- and label-based indexing and provides a host of methods for performing operations involving the index.
Pandas Series.multiply() function perform the mult... | [
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"text": "Pandas series is a One-dimensional ndarray with axis labels. The labels need not be unique but must be a hashable type. The object supports both integer- and label-based index... |
Program to construct a DFA which accept the language L = {anbm | n mod 2=0, mβ₯1} | 14 Nov, 2019
Prerequisite β Finite Automata IntroductionProblem: Design a deterministic finite automata (DFA) for accepting the language
Regular expression for above language L is,
L = (aa)*.b+
Examples:
Input: a a b b b
Output: ACCEPTED
// n = 2 (even) m=3 (>=1)
Input: a a a b b b
Output: NOT... | [
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"text": "Prerequisite β Finite Automata IntroductionProblem: Design a deterministic finite automata (DFA) for accepting the language "
},
{
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"e": 223,
"s"... |
ReactJS Reactstrap Layout Component | 28 Jul, 2021
Reactstrap is a popular front-end library that is easy to use React Bootstrap 4 components. This library contains the stateless React components for Bootstrap 4. The Layout component is used for organizing the layout of our application content using Row, Column, and Container Component.
The Row component ... | [
{
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"text": "\n28 Jul, 2021"
},
{
"code": null,
"e": 317,
"s": 28,
"text": "Reactstrap is a popular front-end library that is easy to use React Bootstrap 4 components. This library contains the stateless React components for Bootstrap 4. The Layout co... |
GATE-CS-2017 (Set 1) - GeeksforGeeks | 26 Oct, 2021
There are atleast Two Men and Two Women.
There are atleast 3 Right Handed People
No women are Right Handed - infers there are three right handed men
Every woman has a left-handed person to her immediate right - Means women circled in red needs to have a left handed person on her right and that too a man as... | [
{
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"text": "\n26 Oct, 2021"
},
{
"code": null,
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"text": "There are atleast Two Men and Two Women."
},
{
"code": null,
"e": 29658,
"s": 29618,
"text": "There are atleast 3 Right Handed People"
},
{... |
Node.js path.dirname() Method | 13 Oct, 2021
The path.dirname() method is used to get the directory name of the given path. It ignores the respective platformβs trailing directory separators.
Syntax:
path.dirname( path )
Parameters: This function accepts one parameter as mentioned above and described below:
path: It is the file path that would be use... | [
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{
"code": null,
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"text": "The path.dirname() method is used to get the directory name of the given path. It ignores the respective platformβs trailing directory separators."
},
{
"code": null,
... |
Sum of multiples of a number up to N | 09 Jun, 2022
Given a number a and limit N. Find the sum of multiple of a upto N.
Examples :
Input : a = 4, N = 23
Output : sum = 60
[Multiples : 4, 8, 12, 16, 20]
Input :a = 7, N = 49
Output :sum = 196
[Multiples: 7, 14, 21, 28, 35, 42, 49]
The basic idea is to iterate from i = a to i = n, i++ and check whether i % a... | [
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"text": "Given a number a and limit N. Find the sum of multiple of a upto N."
},
{
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"s": 120,
"text": "Examples : "
},
{
"code": nul... |
Post a picture automatically on Instagram using Python | 29 May, 2021
Prerequisites: Python Programming LanguageInstagram is a photo and video-sharing social networking service owned by Facebook, Python provides powerful tools for interacting with Instagram. In this article, we will come to know how we can post a picture automatically on the Instagram account just by writing... | [
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"text": "Prerequisites: Python Programming LanguageInstagram is a photo and video-sharing social networking service owned by Facebook, Python provides powerful tools for interacting w... |
Reading Text File into Java HashMap | 28 Dec, 2020
We will look into the Method that allows us to read the HashMap Text from the file or how we can De-serialised the File
De-Serialization: Here we are reproducing the HashMap object and itβs content from a serialized file.
Approach:
Firstly the method/Function HashMapFromTextFile will have the Method buffer... | [
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"text": "We will look into the Method that allows us to read the HashMap Text from the file or how we can De-serialised the File"
},
{
"code": null,
"e": 250,
"s": 148,... |
Create a Line Chart using Recharts in ReactJS | 14 Jul, 2021
Introduction: Rechart JS is a library that is used for creating charts for React JS. This library is used for building Line charts, Bar charts, Pie charts, etc, with the help of React and D3 (Data-Driven Documents).
Creating React Application And Installing Module:
Step 1: Create a React application using... | [
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"text": "Introduction: Rechart JS is a library that is used for creating charts for React JS. This library is used for building Line charts, Bar charts, Pie charts, etc, with the help ... |
How to create 3-Tuple or Triple Tuple in C#? | 29 Nov, 2019
In C#, a 3-tuple is a tuple that contains three elements and it is also known as triple. You can create a 3-tuple using two different ways:
Using Tuple<T1,T2,T3>(T1, T2, T3) Constructor
Using the Create method
You can create 3-tuple using Tuple<T1, T2,T3>(T1, T2, T3) constructor. It initializes a new insta... | [
{
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"text": "In C#, a 3-tuple is a tuple that contains three elements and it is also known as triple. You can create a 3-tuple using two different ways:"
},
{
"code": null,
"e"... |
pydash β Python App For Monitoring Linux Server | 09 Apr, 2021
Python and Django with Chart.js make up pydash, a lightweight web-based monitoring application for Linux. It has been tested and can run on CentOS, Fedora, Ubuntu, Debian, Arch Linux, Raspbian, and Pidora, among other popular Linux distributions.
You can use it to monitor the resources on your Linux PC/ser... | [
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"text": "\n09 Apr, 2021"
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"code": null,
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"text": "Python and Django with Chart.js make up pydash, a lightweight web-based monitoring application for Linux. It has been tested and can run on CentOS, Fedora, Ubuntu, Debian, Arc... |
Remove elements to make array sorted | 21 Jun, 2022
Given an array of integers, the task is to remove elements from the array to make the array sorted. That is, remove the elements which do not follow an increasing order.
Examples:
Input: arr[] = {1, 2, 4, 3, 5, 7, 8, 6, 9, 10} Output: 1 2 4 5 7 8 9 10
Input: arr[] = {10, 12, 9, 5, 2, 13, 14} Output: 10 1... | [
{
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},
{
"code": null,
"e": 222,
"s": 52,
"text": "Given an array of integers, the task is to remove elements from the array to make the array sorted. That is, remove the elements which do not follow an increasing order."
}... |
Shortest Job First (or SJF) CPU Scheduling Non-preemptive algorithm using Segment Tree | 17 Jan, 2022
Shortest job first (SJF) or shortest job next, is a scheduling policy that selects the waiting process with the smallest execution time to execute next. SJN is a non-preemptive algorithm.
Shortest Job first has the advantage of having a minimum average waiting time among all scheduling algorithms.
It is ... | [
{
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},
{
"code": null,
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"text": "Shortest job first (SJF) or shortest job next, is a scheduling policy that selects the waiting process with the smallest execution time to execute next. SJN is a non-preempti... |
ArrayDeque pollLast() Method in Java | 10 Dec, 2018
The java.util.ArrayDeque.pollLast() method in Java is used to retrieve or fetch and remove the last element of the Deque. The peekLast() method only retrieved the element at the end but the pollLast() also removes the element along with the retrieval. It returns NULL if the deque is empty.
Syntax:
Array_De... | [
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"text": "The java.util.ArrayDeque.pollLast() method in Java is used to retrieve or fetch and remove the last element of the Deque. The peekLast() method only retrieved the element at t... |
Find last element after deleting every second element in array of n integers | 30 Aug, 2021
Given a circular array of size n containing integers from 1 to n. Find the last element that would remain in the list after erasing every second element starting from the first element.
Example:
Input: 5
Output: 3
Explanation
Element in circular array are:
1 2 3 4 5
Starting from first element i.e, '1'
de... | [
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"text": "Given a circular array of size n containing integers from 1 to n. Find the last element that would remain in the list after erasing every second element starting from the fir... |
ReactJS | Refs | 08 Jan, 2021
Refs are a function provided by React to access the DOM element and the React element that you might have created on your own. They are used in cases where we want to change the value of a child component, without making use of props and all. They also provide us with good functionality as we can use callb... | [
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"text": "Refs are a function provided by React to access the DOM element and the React element that you might have created on your own. They are used in cases where we want to change t... |
How to declare Global Variables in JavaScript ? | 21 May, 2021
Declaring Variable: A variable can be either declared as a global or local variable. Variables can be declared by var, let, and const keywords. Before ES6 there is only a var keyword available to declare a JavaScript variable.
Global Variables are the variables that can be accessed from anywhere in the pr... | [
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"code": null,
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"text": "Declaring Variable: A variable can be either declared as a global or local variable. Variables can be declared by var, let, and const keywords. Before ES6 there is only a var... |
Good or Bad string | Practice | GeeksforGeeks | In this problem, a String S is composed of lowercase alphabets and wildcard characters i.e. '?'. Here, '?' can be replaced by any of the lowercase alphabets. Now you have to classify the given String on the basis of following rules:
If there are more than 3 consonants together or more than 5 vowels together, the String... | [
{
"code": null,
"e": 459,
"s": 226,
"text": "In this problem, a String S is composed of lowercase alphabets and wildcard characters i.e. '?'. Here, '?' can be replaced by any of the lowercase alphabets. Now you have to classify the given String on the basis of following rules:"
},
{
"code": ... |
json.dump() in Python | 23 Jan, 2020
The full-form of JSON is JavaScript Object Notation. It means that a script (executable) file which is made of text in a programming language, is used to store and transfer the data. Python supports JSON through a built-in package called json. To use this feature, we import the json package in Python scrip... | [
{
"code": null,
"e": 28,
"s": 0,
"text": "\n23 Jan, 2020"
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{
"code": null,
"e": 486,
"s": 28,
"text": "The full-form of JSON is JavaScript Object Notation. It means that a script (executable) file which is made of text in a programming language, is used to store and transfer th... |
Duration toHoursPart() method in Java with Examples | 26 Nov, 2018
The toHoursPart() method of Duration Class in java.time package is used get the value of this duration in number of hours by dividing the number of hours in a day.
Syntax:
public long toHoursPart()
Parameters: This method do not accepts any parameter.
Return Value: This method returns a long value which i... | [
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"code": null,
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"text": "The toHoursPart() method of Duration Class in java.time package is used get the value of this duration in number of hours by dividing the number of hours in a day."
},
{
... |
Change Space and Width of Bars in ggplot2 Barplot in R | 23 May, 2021
In this article, we will see how to change the Space and width of bars in ggplot2 barplot in R.
For Create a simple Barplot using ggplot2, first we have to load the ggplot2 package using the library() function. If you have not already installed then you can install it by writing the below command in your ... | [
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"text": "In this article, we will see how to change the Space and width of bars in ggplot2 barplot in R. "
},
{
"code": null,
"e": 347,
"s": 125,
"text": "For Creat... |
Tail Recursion for Fibonacci | 26 May, 2022
Write a tail recursive function for calculating the n-th Fibonacci number. Examples :
Input : n = 4
Output : fib(4) = 3
Input : n = 9
Output : fib(9) = 34
Prerequisites : Tail Recursion, Fibonacci numbersA recursive function is tail recursive when the recursive call is the last thing executed by the fun... | [
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Split a column in Pandas dataframe and get part of it | 21 Jan, 2019
When a part of any column in Dataframe is important and the need is to take it separate, we can split a column on the basis of the requirement.
We can use Pandas .str accessor, it does fast vectorized string operations for Series and Dataframes and returns a string object. Pandas str accessor has number of... | [
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Python | Pandas Timestamp.quarter | 08 Jan, 2019
Python is a great language for doing data analysis, primarily because of the fantastic ecosystem of data-centric python packages. Pandas is one of those packages and makes importing and analyzing data much easier.
Pandas Timestamp.quarter attribute return an integer value which represents the quarter in wh... | [
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Determine the Month on a Specific Date in R Programming β months() Function | 24 Jun, 2020
months() function in R Language is used to determine the month on a specific date passed to it as argument.
Syntax: months(date, abbreviate)
Parameters:date: Date to be checkedabbreviate: Boolean value to abbreviate month
Example 1:
# R program to find the month # on a specific date # Specifying the dated... | [
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"text": "months() function in R Language is used to determine the month on a specific date passed to it as argument."
},
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Check if a given array can represent Preorder Traversal of Binary Search Tree in C++ | Suppose we have a list of elements in an array, we have to check, whether the elements can be the preorder traversal of a binary search tree or not. Suppose a sequence is like {40, 30, 35, 80, 100}, then the tree will be like β
We can solve this using a stack. We have to follow these steps to solve this problem.
Define... | [
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},
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Add a border around histogram bars in Matplotlib - GeeksforGeeks | 24 Jan, 2021
Prerequisites: Matplotlib
In this article, we will see how can we can add a border around histogram bars in our graph using matplotlib, Here we will take two different examples to showcase our graph.
Approach:
Import required module.
Create data.
Add border around histogram bars.
Normally plot the data.
Di... | [
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"code": null,
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LCM of First n Natural Numbers - GeeksforGeeks | 27 Mar, 2022
Given a number n such that 1 <= N <= 10^6, the Task is to Find the LCM of First n Natural Numbers.
Examples:
Input : n = 5
Output : 60
Input : n = 6
Output : 60
Input : n = 7
Output : 420
We have discussed a simple solution in below article. Smallest number divisible by first n numbersThe above soluti... | [
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Spring Boot Validation Login Form Example - onlinetutorialspoint | PROGRAMMINGJava ExamplesC Examples
Java Examples
C Examples
C Tutorials
aws
JAVAEXCEPTIONSCOLLECTIONSSWINGJDBC
EXCEPTIONS
COLLECTIONS
SWING
JDBC
JAVA 8
SPRING
SPRING BOOT
HIBERNATE
PYTHON
PHP
JQUERY
PROGRAMMINGJava ExamplesC Examples
Java Examples
C Examples
C Tutorials
aws
In this tutorial, I am going to show you how ... | [
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Lodash _.set() Method - GeeksforGeeks | 16 Sep, 2020
The _.set() method is used to set the value at path of object and returns a new set object.
Syntax:
_.set(object, path, value)
Parameters: This method accepts three parameters as mentioned above and described below:
object: This parameter holds the object to modify.
path: This parameter holds the path of ... | [
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Check if it possible to partition in k subarrays with equal sum in Python | Suppose we have an array of numbers called nums, and also have another value K. We have to check whether we can partition the array nums into K contiguous subarrays such that the elements sum of each subarrays is equal.
So, if the input is like nums = [2, 5, 3, 4, 7] k = 3, then the output will be True as we can make t... | [
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XOR of major diagonal elements of a 3D Matrix - GeeksforGeeks | 08 Jun, 2021
Given a 3D matrix mat[][][] of dimensions N * N * N consisting of positive integers, the task is to calculate Bitwise XOR of all matrix elements present in the major diagonal.
Examples:
Input: arr[][][] = {{{1, 2}, {3, 4}}, {{5, 6}, {7, 8}}}Output: 12Explanation: The major diagonal elements are {1, 8, 2, ... | [
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"text": "Given a 3D matrix mat[][][] of dimensions N * N * N consisting of positive integers, the task is to calculate Bitwise XOR of all matrix elements present in the ... |
Python Code Objects | Code objects are a low-level detail of the CPython implementation. Each one represents a chunk of executable code that hasnβt yet been bound into a function. Though code objects represent some piece of executable code, they are not, by themselves, directly callable. To execute a code object, you must use the exec keywo... | [
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"text": "Code objects are a low-level detail of the CPython implementation. Each one represents a chunk of executable code that hasnβt yet been bound into a function. Though code objects represent some piece of executable code, they are not, by themselves, direc... |
Java - Interthread Communication | If you are aware of interprocess communication then it will be easy for you to understand interthread communication. Interthread communication is important when you develop an application where two or more threads exchange some information.
There are three simple methods and a little trick which makes thread communicat... | [
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"text": "If you are aware of interprocess communication then it will be easy for you to understand interthread communication. Interthread communication is important when you develop an application where two or more threads exchange some information."
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... |
Function borrowing in JavaScript. | The call(), apply() and bind() are used to borrow methods in JavaScript.
Following is the code for borrowing methods in JavaScript β
Live Demo
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Document</title>
<style>
bod... | [
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"text": "Following is the code for borrowing methods in JavaScript β"
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Apache Spark Tutorial - Beginners Guide to Read and Write data using PySpark | Towards Data Science | Buddy is a novice Data Engineer who has recently come across Spark, a popular big data processing framework.
Considering the fact that Spark is being seamlessly integrated with cloud data platforms like Azure, AWS, and GCP Buddy has now realized its existential certainty. This has driven Buddy to jump-start his Spark j... | [
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},
{
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How to Fix: module βpandasβ has no attribute βdataframeβ - GeeksforGeeks | 19 Dec, 2021
In this article, we are going to see how to fix errors while creating dataframe β module βpandasβ has no attribute βdataframeββ.
To create dataframe we need to use DataFrame(). If we use dataframe it will throw an error because there is no dataframe attribute in pandas. The method is DataFrame(). We need ... | [
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Permutations of string such that no two vowels are adjacent - GeeksforGeeks | 26 May, 2021
Given a string consisting of vowels and consonants. The task is to find the number of ways in which the characters of the string can be arranged such that no two vowels are adjacent to each other. Note: Given that No. of vowels <= No. of consonants.
Examples:
Input: str = "permutation"
Output : 907200
In... | [
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"text": "Given a string consisting of vowels and consonants. The task is to find the number of ways in which the characters of the string can be arranged such that no two v... |
Find the remaining vertices of a square from two given vertices - GeeksforGeeks | 23 Mar, 2021
Given the coordinates of any two vertices of a square (X1, Y1) and (X2, Y2), the task is to find the coordinates of the other two vertices. If a square cannot be formed using these two vertices, print -1.
Examples:
Input: X1 = 1, Y1 = 2, X2 = 3, Y2 = 4 Output: (1, 4), (3, 2) Explanation:
From the above... | [
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"text": "Given the coordinates of any two vertices of a square (X1, Y1) and (X2, Y2), the task is to find the coordinates of the other two vertices. If a square cannot be f... |
PLSQL | EXTRACT Function - GeeksforGeeks | 28 Oct, 2019
The PLSQL EXTRACT function is used for extracting a specific value such as year, month, day or hour from a date or an interval value.
Syntax:
EXTRACT(field FROM source)
Parameters Used:The EXTRACT function accepts two parameters :
field β It is used to specify the component that needs to be extracted.
sour... | [
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Python | Reversed Split Strings - GeeksforGeeks | 01 May, 2019
The functionality of splitting is quite popular with manyfold applications and usages. With all, comes the scopes of many types of variations. This article discusses one among those variations in which one desires to get the split and reversal of element string order, both the operations at once. Letβs dis... | [
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Find the smallest positive number missing from an unsorted array : Hashing Implementation - GeeksforGeeks | 08 Jun, 2021
Given an unsorted array with both positive and negative elements including 0. The task is to find the smallest positive number missing from the array in O(N) time. Examples:
Input: arr[] = {-5, 2, 0, -1, -10, 15}
Output: 1
Input: arr[] = {0, 1, 2, 3, 4, 5}
Output: 6
Input: arr[] = {1, 1, 1, 0, -1, -2}
... | [
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Python | Pandas.pivot() - GeeksforGeeks | 28 Sep, 2018
pandas.pivot(index, columns, values) function produces pivot table based on 3 columns of the DataFrame. Uses unique values from index / columns and fills with values.
Parameters:index[ndarray] : Labels to use to make new frameβs indexcolumns[ndarray] : Labels to use to make new frameβs columnsvalues[ndarra... | [
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Database Management Systems | Set 2 - GeeksforGeeks | 12 Jul, 2021
Following Questions have been asked in GATE 2012 exam.
1) Which of the following statements are TRUE about an SQL query? P: An SQL query can contain a HAVING clause even if it does not a GROUP BY clause Q: An SQL query can contain a HAVING clause only if it has a GROUP BY clause R: All attributes used in ... | [
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"text": "Following Questions have been asked in GATE 2012 exam. "
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"text": "1) Which of the following statemen... |
Creating a simple browser using PyQt5 - GeeksforGeeks | 12 Jan, 2022
In this article we will see how we can create a simple browser using PyQt5.
Web browser is a software application for accessing information on the World Wide Web. When a user requests a web page from a particular website, the web browser retrieves the necessary content from a web server and then displays t... | [
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YearMonth of(int, Month) method in Java with Examples - GeeksforGeeks | 12 May, 2020
The of(int year, Month month) method of the YearMonth class in Java is used to get an instance of YearMonth from a year and month.Syntax:
public static YearMonth of(
int year, Month month)
Parameters: This method accepts two parameters:
year: It represents year.
month: It represents the month of year.
... | [
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Solidity - Comments | Solidity supports both C-style and C++-style comments, Thus β
Any text between a // and the end of a line is treated as a comment and is ignored by Solidity Compiler.
Any text between a // and the end of a line is treated as a comment and is ignored by Solidity Compiler.
Any text between the characters /* and */ is tre... | [
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semget() - Unix, Linux System Call | Unix - Home
Unix - Getting Started
Unix - File Management
Unix - Directories
Unix - File Permission
Unix - Environment
Unix - Basic Utilities
Unix - Pipes & Filters
Unix - Processes
Unix - Communication
Unix - The vi Editor
Unix - What is Shell?
Unix - Using Variables
Unix - Special Variables
Unix - Using Arrays
Unix -... | [
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JavaScript String - charCodeAt() Method | This method returns a number indicating the Unicode value of the character at the given index.
Unicode code points range from 0 to 1,114,111. The first 128 Unicode code points are a direct match of the ASCII character encoding. charCodeAt() always returns a value that is less than 65,536.
Use the following syntax to fi... | [
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ReactJS β useContext hook | In this article, we are going to see how to access the data without passing it through every parent component in the React Lifecycle.
This hook is the better replacement of the Context API of the Class-based component which is used to set the global data and this data can now be accessed in any of the children componen... | [
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Cucumber - Scenario Outline | Scenario outline basically replaces variable/keywords with the value from the table. Each row in the table is considered to be a scenario.
Letβs continue with the same example of Facebook login feature. So far we have been executing one scenario: Upon providing the correct user name, login is successful. Now, suppose w... | [
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Comparing Different Classification Machine Learning Models for an imbalanced dataset | by Urvashi Jaitley | Towards Data Science | A data set is called imbalanced if it contains many more samples from one class than from the rest of the classes. Data sets are unbalanced when at least one class is represented by only a small number of training examples (called the minority class) while other classes make up the majority. In this scenario, classifie... | [
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"text": "A data set is called imbalanced if it contains many more samples from one class than from the rest of the classes. Data sets are unbalanced when at least one class is represented by only a small number of training examples (called the minority class) whil... |
Git - Commit Changes | Jerry has already committed the changes and he wants to correct his last commit. In this case, git amend operation will help. The amend operation changes the last commit including your commit message; it creates a new commit ID.
Before amend operation, he checks the commit log.
[jerry@CentOS project]$ git log
The abov... | [
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SQLβ inserting only unique values in a UNIQUE table | by Mike Huls | Towards Data Science | Imagine we are a restaurant that sells all kinds of dishes. Because weβre smart we keep track of all of our ingredients in a database. The ingredients table will contain only unique ingredients that each have their own id.
The goal of this article is to create a query that inserts unique ingredients in to the table tha... | [
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Question and Answering With Bert | Towards Data Science | Asking a question to a machine and receiving an answer was always the stuff of sci-fi in the not too distant past. Now, things have changed, and we find ourselves using Q&A systems everywhere β without even realizing it.
Google search is the best example β although in most cases Google is used to find information and w... | [
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std::includes() in C++ STL - GeeksforGeeks | 23 Dec, 2021
includes() is a C++ function that can be used to recognize if all the numbers in a container, also exist in other containers. It helps to check whether a set is a subset of another set or not considering the set is ordered. The elements are expected to be in sorted order. This function is defined in <algor... | [
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"text": "includes() is a C++ function that can be used to recognize if all the numbers in a container, also exist in other containers. It helps to check whether a set is a ... |
Tryit Editor v3.7 | HTML Style guide
Tryit: JavaScript is case sensitive | [
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JavaScript Math Object | The JavaScript Math object allows you to perform mathematical tasks on
numbers.
Unlike other objects, the Math object has no constructor.
The Math object is static.
All methods and properties can be used without creating a Math object first.
The syntax for any Math property is : Math.property.
JavaScript provides 8 ma... | [
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json.dumps() in Python - GeeksforGeeks | 28 Jun, 2021
The full-form of JSON is JavaScript Object Notation. It means that a script (executable) file which is made of text in a programming language, is used to store and transfer the data. Python supports JSON through a built-in package called json. To use this feature, we import the json package in Python scrip... | [
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"s": 23889,
"text": "The full-form of JSON is JavaScript Object Notation. It means that a script (executable) file which is made of text in a programming language, is used to store and... |
What is the difference between ++i and i++ in c? | In C, ++ and -- operators are called increment and decrement operators. They are unary operators needing only one operand. Hence ++ as well as -- operator can appear before or after the operand with same effect.
That means both i++ and ++i will be equivalent.
i=5;
i++;
printf("%d",i);
and
i=5
++i;
printf("%d",i);
bot... | [
{
"code": null,
"e": 1275,
"s": 1062,
"text": "In C, ++ and -- operators are called increment and decrement operators. They are unary operators needing only one operand. Hence ++ as well as -- operator can appear before or after the operand with same effect. "
},
{
"code": null,
"e": 132... |
Compiler - Intermediate Code Generation | A source code can directly be translated into its target machine code, then why at all we need to translate the source code into an intermediate code which is then translated to its target code? Let us see the reasons why we need an intermediate code.
If a compiler translates the source language to its target machine l... | [
{
"code": null,
"e": 2445,
"s": 2193,
"text": "A source code can directly be translated into its target machine code, then why at all we need to translate the source code into an intermediate code which is then translated to its target code? Let us see the reasons why we need an intermediate code."
... |
Detect Cycle in a directed graph using colors - GeeksforGeeks | 22 Jan, 2022
Given a directed graph, check whether the graph contains a cycle or not. Your function should return true if the given graph contains at least one cycle, else return false.
Example:
Input: n = 4, e = 6 0 -> 1, 0 -> 2, 1 -> 2, 2 -> 0, 2 -> 3, 3 -> 3 Output: Yes Explanation:
This diagram clearly shows a c... | [
{
"code": null,
"e": 37680,
"s": 37652,
"text": "\n22 Jan, 2022"
},
{
"code": null,
"e": 37853,
"s": 37680,
"text": "Given a directed graph, check whether the graph contains a cycle or not. Your function should return true if the given graph contains at least one cycle, else retu... |
AI to Detect Speaker in a Speech. Using AI to detect the speaker in a... | by Abhishek Mungoli | Towards Data Science | With the advancement in AI, one can come up with many interesting and helpful AI applications. These AI applications can be helpful in Health, Retail, Finance, and various other domains. The main idea is to keep thinking about how can we utilize these advanced technologies and come up with interesting use cases.
Throug... | [
{
"code": null,
"e": 486,
"s": 172,
"text": "With the advancement in AI, one can come up with many interesting and helpful AI applications. These AI applications can be helpful in Health, Retail, Finance, and various other domains. The main idea is to keep thinking about how can we utilize these adv... |
How can I use Python regex to split a string by multiple delimiters? | The following code uses Python regex to split the given string by multiple deliimiters
import re
s = 'Beautiful; Soup\n is, good: Python* application'
result = re.split('; |, |\*|\n|:',s)
print result
This gives the output
['Beautiful', 'Soup', ' is', 'good', ' Python', ' application'] | [
{
"code": null,
"e": 1149,
"s": 1062,
"text": "The following code uses Python regex to split the given string by multiple deliimiters"
},
{
"code": null,
"e": 1263,
"s": 1149,
"text": "import re\ns = 'Beautiful; Soup\\n is, good: Python* application'\nresult = re.split('; |, |\\*... |
NLP Machine Learning Methods | Towards Data Science | One and a half years ago, I chanced upon Python and Anaconda as a tool for Data Science (DS) while taking part in a Data Hackathon. The myriad of Python libraries underscored Pythonβs versatility as a toolkit for data science. Sadly, I didnβt possess the necessary skillset to utilize Python back then. Since then, I too... | [
{
"code": null,
"e": 1059,
"s": 171,
"text": "One and a half years ago, I chanced upon Python and Anaconda as a tool for Data Science (DS) while taking part in a Data Hackathon. The myriad of Python libraries underscored Pythonβs versatility as a toolkit for data science. Sadly, I didnβt possess the... |
MySQL: What is 'AUTO_INCREMENT=5' in a create table query? | The AUTO_INCREMENT=5 in a create table query tells that the first record will start from 5 i.e. not default 1. As we know if you do not set the value to AUTO_INCREMENT then MySQL starts from 1 by default.
The syntax is as follows:
CREATE TABLE yourTableName
(
yourColumnName1 dataType NOT NULL AUTO_INCRMENT,
.
.
.
N,
PR... | [
{
"code": null,
"e": 1267,
"s": 1062,
"text": "The AUTO_INCREMENT=5 in a create table query tells that the first record will start from 5 i.e. not default 1. As we know if you do not set the value to AUTO_INCREMENT then MySQL starts from 1 by default."
},
{
"code": null,
"e": 1293,
"... |
Convert List of Characters to String in Java - GeeksforGeeks | 29 Sep, 2021
Given a list of characters. Write a Java program to convert the given list to a string.
Input : list = {'g', 'e', 'e', 'k', 's'}
Output : "geeks"
Input : list = {'a', 'b', 'c'}
Output : "abc"
Strings β Strings in Java are objects that are supported internally by a char array. Since arrays are immutable... | [
{
"code": null,
"e": 24539,
"s": 24511,
"text": "\n29 Sep, 2021"
},
{
"code": null,
"e": 24627,
"s": 24539,
"text": "Given a list of characters. Write a Java program to convert the given list to a string."
},
{
"code": null,
"e": 24735,
"s": 24627,
"text": "In... |
Convert an Object to a Table in R Programming - as.table() Function - GeeksforGeeks | 19 Jun, 2020
as.table() function in R Language is used to convert an object into a table.
Syntax: as.table(x)
Parameters:x: Object to be converted
Example 1:
# R Program to convert # an object to a table # Creating a vectorvec = c(2, 4, 3, 1, 2, 3, 2, 1, 4, 2) # Calling as.table() Functionas.table(vec)
Output:
A B C... | [
{
"code": null,
"e": 24375,
"s": 24347,
"text": "\n19 Jun, 2020"
},
{
"code": null,
"e": 24452,
"s": 24375,
"text": "as.table() function in R Language is used to convert an object into a table."
},
{
"code": null,
"e": 24472,
"s": 24452,
"text": "Syntax: as.ta... |
How to avoid the points getting overlapped while using stripplot in categorical scatter plot Seaborn Library in Python? | Visualizing data is an important step since it helps understand what is going on in the data without actually looking at the numbers and performing complicated computations. Seaborn is a library that helps in visualizing data. It comes with customized themes and a high level interface.
General scatter plots, histograms... | [
{
"code": null,
"e": 1349,
"s": 1062,
"text": "Visualizing data is an important step since it helps understand what is going on in the data without actually looking at the numbers and performing complicated computations. Seaborn is a library that helps in visualizing data. It comes with customized t... |
How to add background music in HTML? | The HTML <bgsound> tag is used to play music in the background. This tag is for Internet Explorer only.
You can try to run the following code to add background music in HTML β
<!DOCTYPE html>
<html>
<head>
<title>HTML bgsound Tag</title>
</head>
<body>
<bgsound src = "/html/yourfile.mdi"/>
<p... | [
{
"code": null,
"e": 1166,
"s": 1062,
"text": "The HTML <bgsound> tag is used to play music in the background. This tag is for Internet Explorer only."
},
{
"code": null,
"e": 1238,
"s": 1166,
"text": "You can try to run the following code to add background music in HTML β"
},
... |
jMeter - Functions | JMeter functions are special values that can populate fields of any Sampler or other element in a test tree.
A function call looks like this β
A function call looks like this β
${__functionName(var1,var2,var3)}
_functionName matches the name of a function. For example ${__threadNum}.
_functionName matches the name of ... | [
{
"code": null,
"e": 2014,
"s": 1905,
"text": "JMeter functions are special values that can populate fields of any Sampler or other element in a test tree."
},
{
"code": null,
"e": 2048,
"s": 2014,
"text": "A function call looks like this β"
},
{
"code": null,
"e": 20... |
Keras Custom Training Loop. How to build a custom training loop in... | by Javier | Towards Data Science | Keras is a high level library, among all the other deep learning libraries, and we all love it for that. It abstracts most of the pain that, our not less beloved, Tensorflow brings with itself to crunch data very efficiently on GPU.
I use Keras at work and for my personal projects and I am deeply in love with its API a... | [
{
"code": null,
"e": 405,
"s": 172,
"text": "Keras is a high level library, among all the other deep learning libraries, and we all love it for that. It abstracts most of the pain that, our not less beloved, Tensorflow brings with itself to crunch data very efficiently on GPU."
},
{
"code": ... |
AWS Quicksight - AWS SDKs | You can use AWS Quicksight SDKβs to manage the following β
User and group management
Embedding dashboards
Following shows a sample HTML code to be used to display an embedded dashboard β
<!DOCTYPE html>
<html>
<head>
<title>Sample Embed</title>
<script type="text/javascript" src="https://unpkg.com/amazon... | [
{
"code": null,
"e": 2290,
"s": 2231,
"text": "You can use AWS Quicksight SDKβs to manage the following β"
},
{
"code": null,
"e": 2316,
"s": 2290,
"text": "User and group management"
},
{
"code": null,
"e": 2337,
"s": 2316,
"text": "Embedding dashboards"
},... |
Diagonal Traversal of Binary Tree - GeeksforGeeks | 21 Jan, 2022
Consider lines of slope -1 passing between nodes. Given a Binary Tree, print all diagonal elements in a binary tree belonging to the same line.
Input : Root of below tree
Output :
Diagonal Traversal of binary tree :
8 10 14
3 6 7 13
1 4
Observation : root and root->right values will be prioritized ove... | [
{
"code": null,
"e": 35848,
"s": 35820,
"text": "\n21 Jan, 2022"
},
{
"code": null,
"e": 35992,
"s": 35848,
"text": "Consider lines of slope -1 passing between nodes. Given a Binary Tree, print all diagonal elements in a binary tree belonging to the same line."
},
{
"code... |
SQL Query to Get the Latest Record from the Table | 23 Sep, 2021
Getting the latest record from the table is a simple task, you do not have a need to get advanced knowledge of SQL. In this article, we will discuss the simplest and easier methods to get the latest record from the Table.
You might want to get the latest record from the table with all the columns or you mi... | [
{
"code": null,
"e": 28,
"s": 0,
"text": "\n23 Sep, 2021"
},
{
"code": null,
"e": 250,
"s": 28,
"text": "Getting the latest record from the table is a simple task, you do not have a need to get advanced knowledge of SQL. In this article, we will discuss the simplest and easier me... |
Python Script to Automate Refreshing an Excel Spreadsheet | 14 Sep, 2021
In this article, we will learn how we can automate refreshing an Excel Spreadsheet using Python.
So to open the Excel application and workbooks we are going to use the pywin32 module. You can install the module using the below code:
pip install pywin32
Then we are going to open the Excel application using ... | [
{
"code": null,
"e": 54,
"s": 26,
"text": "\n14 Sep, 2021"
},
{
"code": null,
"e": 151,
"s": 54,
"text": "In this article, we will learn how we can automate refreshing an Excel Spreadsheet using Python."
},
{
"code": null,
"e": 287,
"s": 151,
"text": "So to op... |
How to Pass an Object as an Argument into Method in C#? | 06 Dec, 2021
Given an object, now we pass this object as an argument into the method in C#. Here, a method is a code block that contains a series of statements that will only execute when the method is called. We can pass the data to the methods in form of arguments and an object is an instance of a class that is creat... | [
{
"code": null,
"e": 28,
"s": 0,
"text": "\n06 Dec, 2021"
},
{
"code": null,
"e": 627,
"s": 28,
"text": "Given an object, now we pass this object as an argument into the method in C#. Here, a method is a code block that contains a series of statements that will only execute when ... |
What happens when a virtual function is called inside a non-virtual function in C++ | 20 Dec, 2018
Predict the output of the following simple C++ program without any virtual function.
#include <iostream>using namespace std; class Base{public: void print() { cout << "Base class print function \n"; } void invoke() { cout << "Base class invoke function \n"; this -> prin... | [
{
"code": null,
"e": 54,
"s": 26,
"text": "\n20 Dec, 2018"
},
{
"code": null,
"e": 139,
"s": 54,
"text": "Predict the output of the following simple C++ program without any virtual function."
},
{
"code": "#include <iostream>using namespace std; class Base{public: voi... |
React Material-UI Introduction and Installation | 23 May, 2022
Material UI is the most powerful and efficient tool to build an Application by adding Designs and Animations and using it with technical and scientific innovation. It is basically a design language that was developed by Google in 2014. It uses more Design and Animations, grid-system and provides shadows an... | [
{
"code": null,
"e": 52,
"s": 24,
"text": "\n23 May, 2022"
},
{
"code": null,
"e": 380,
"s": 52,
"text": "Material UI is the most powerful and efficient tool to build an Application by adding Designs and Animations and using it with technical and scientific innovation. It is basi... |
Java Program to Multiply two Floating-Point Numbers | 07 Jan, 2021
The float class is a wrapper class for the primitive type float which contains several methods to effectively deal with a float value like converting it to a string representation, and vice-versa. An object of the Float class can hold a single float value.
The task is to multiply two Floating point numbers... | [
{
"code": null,
"e": 52,
"s": 24,
"text": "\n07 Jan, 2021"
},
{
"code": null,
"e": 309,
"s": 52,
"text": "The float class is a wrapper class for the primitive type float which contains several methods to effectively deal with a float value like converting it to a string represent... |
ZonedDateTime now() Method in Java with Examples | 21 Jan, 2019
In ZonedDateTime class, there are three types of now() method depending upon the parameters passed to it.
now() method of a ZonedDateTime class used to obtain the current date-time from the system clock in the default time-zone.This method will return ZonedDateTime based on system clock with default time-z... | [
{
"code": null,
"e": 28,
"s": 0,
"text": "\n21 Jan, 2019"
},
{
"code": null,
"e": 134,
"s": 28,
"text": "In ZonedDateTime class, there are three types of now() method depending upon the parameters passed to it."
},
{
"code": null,
"e": 441,
"s": 134,
"text": "... |
Regular Expressions in Scala | 08 Apr, 2019
Regular Expressions explain a common pattern utilized to match a series of input data so, it is helpful in Pattern Matching in numerous programming languages. In Scala Regular Expressions are generally termed as Scala Regex.Regex is a class which is imported from the package scala.util.matching.Regex and i... | [
{
"code": null,
"e": 28,
"s": 0,
"text": "\n08 Apr, 2019"
},
{
"code": null,
"e": 505,
"s": 28,
"text": "Regular Expressions explain a common pattern utilized to match a series of input data so, it is helpful in Pattern Matching in numerous programming languages. In Scala Regular... |
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