javascript-basics

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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

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Pass by Value and Pass by Reference in Javascript

Last Updated: 15 April 2025

JavaScript handles variables in different ways when passing them to functions. Variables in JavaScript can either be passed by value or pass ...read more

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What is An Event Loop in JavaScript?

Last Updated: 15 April 2025

The event loop is an important concept in JavaScript that enables asynchronous programming by handling tasks efficiently. Since JavaScript i...read more

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What is shallow copy and deep copy in JavaScript ?

Last Updated: 20 August 2024

JavaScript is a high-level, dynamically typed client-side scripting language. JavaScript adds functionality to static HTML pages. Like most ...read more

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Synchronous and Asynchronous in JavaScript

Last Updated: 22 August 2024

JavaScript is known for its ability to handle both synchronous and asynchronous operations. Understanding how these two things work is impor ...read more

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Introduction to JavaScript

Last Updated: 12 May 2025

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

Last Updated: 12 August 2024

JavaScript syntax refers to the rules and conventions dictating how code is structured and arranged within the JavaScript programming langu ...read more

How to Add JavaScript in HTML Document?

Last Updated: 10 January 2025

To add JavaScript in HTML document, several methods can be used. These methods include embedding JavaScript directly within the HTML file or...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

Debouncing in JavaScript

Last Updated: 15 February 2025

In JavaScript, debouncing is a technique used to ensure that a function is not called too frequently. It is commonly used in scenarios where ...read more

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Objects in Javascript

Last Updated: 07 March 2025

An object in JavaScript is a data structure used to store related data collections. It stores data as key-value pairs, where each key is a u ...read more

Last Updated: 29 January 2025

Hoisting refers to the behaviour where JavaScript moves the declarations of variables, functions, and classes to the top of their scope duri ...read more

Last Updated: 26 December 2024

Loops in JavaScript are used to reduce repetitive tasks by repeatedly executing a block of code as long as a specified condition is true. Th...read more

Variables and Datatypes in JavaScript

Last Updated: 29 January 2025

Variables and data types are foundational concepts in programming, serving as the building blocks for storing and manipulating information w ...read more

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Functions in JavaScript

Last Updated: 14 May 2025

Functions in JavaScript are reusable blocks of code designed to perform specific tasks. They allow you to organize, reuse, and modularize co ...read more

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