JavaScript

11.5k+ posts

Last Updated: 20 March 2025

JavaScript is a programming language used to create dynamic content for websites. It is a lightweight, cross-platform, and single-threaded p...read more

Web Technologies

JavaScript

Tutorials

Web-Tech Tutorials

Difference between var, let and const keywords in JavaScript

Last Updated: 21 April 2025

JavaScript provides three ways to declare variables: var, let, and const, but they differ in scope, hoisting behaviour, and re-assignment ru...read more

Web Technologies - Difference Between

Differences Between Functional Components and Class Components

Last Updated: 04 April 2025

In React, components are the building blocks of the user interface, and you can define them in two ways: Functional Components and Class Com ...read more

Web Technologies - Difference Between

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How to read a local text file using JavaScript?

Last Updated: 09 January 2025

Reading a local text file involves accessing the contents of a file stored on a user's device. Using JavaScript, this can be achieved with...read more

Introduction to JavaScript

Last Updated: 09 April 2025

JavaScriptis a versatile,dynamically typedprogramming language used for interactive web applications, supporting bothclient-side and server-...read more

Web Technologies

JavaScript

javascript-basics

Remove Elements From a JavaScript Array

Last Updated: 16 April 2025

Here are the various methods to remove elements from a JavaScript Array 1. Using pop() methodThe pop() method removes and returns the last e...read more

JavaScript Interview Questions and Answers

Last Updated: 21 April 2025

JavaScript (JS) is the most popular lightweight, scripting, and interpreted programming language. JavaScript is well-known as a scripting l...read more

interview-preparation

JavaScript-Interview-Questions

How to Open URL in New Tab using JavaScript?

Last Updated: 13 September 2024

HTML anchor tag is used to open URLs in a new tab using the target="_blank" attribute. In JavaScript, we have an inbuilt method window.open(...read more

Web Technologies

JavaScript

Picked

How do you Run JavaScript Through the Terminal?

Last Updated: 06 January 2025

Running JavaScript through the terminal can be done in a few different ways, depending on the environment you're using. Here are the most co ...read more

How to Calculate the Number of Days between Two Dates in JavaScript?

Last Updated: 16 April 2025

Calculating the number of days between two dates is a common task in web development, especially when working with schedules, deadlines, or ...read more

How to append HTML code to a div using JavaScript ?

Last Updated: 15 April 2025

Updating content on a webpage without reloading the entire page makes for a faster and smoother user experience. JavaScript allows you to do...read more

Convert a String to an Integer in JavaScript

Last Updated: 12 November 2024

These are the following ways to convert string to an integer in JavaScript:1. Using Number() MethodThe number() method converts a string int ...read more

Difference between var and let in JavaScript

Last Updated: 09 January 2025

In the early days of JavaScript, there was only one way of declaring variables and that was using the var keyword. A variable declared with ...read more

Difference between TypeScript and JavaScript

Last Updated: 09 January 2025

Ever wondered about the difference between JavaScript and TypeScript? If you're into web development, knowing these two languages is super i...read more

JavaScript Form Validation

Last Updated: 09 January 2025

JavaScript form validation checks user input before submitting the form to ensure it's correct. It helps catch errors and improves the user ...read more

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