Category: JavaScript

Objects are one of the most important data types in JavaScript, and they play a central role in the language. An object is a collection of key-value pairs, where the keys are strings (or symbols), ...

The this keyword in JavaScript is one of the most powerful yet confusing concepts for developers, especially for those new to the language. Its behaviour can vary depending on the context in which ...

JavaScript is often described as a prototype-based language. JavaScript uses prototypal inheritance, unlike traditional object-oriented programming languages that use class-based inheritance. This ...

Hoisting is one of the more unique features of JavaScript that can sometimes confuse beginners. It refers to the process by which the JavaScript engine moves variable and function declarations to t...

In JavaScript, an object is one of the most important data structures, allowing developers to represent and manipulate real-world entities in a meaningful way. Objects store collections of key-valu...

In JavaScript, an array is a data structure that allows you to store multiple values in a single variable. Arrays are one of the most commonly used features in JavaScript, offering a flexible way t...

Arrays are a fundamental data structure in JavaScript, allowing developers to store and manipulate collections of elements. JavaScript provides a variety of built-in array methods that make it easy...

In JavaScript, variable declaration is an essential concept. The language provides three ways to declare variables: var, let, and const. While they may seem similar at first glance, each has distin...

JavaScript, being single-threaded, relies heavily on asynchronous programming to handle tasks that may take time, such as making API calls, reading files, or waiting for user input. Historically, c...

JavaScript is single-threaded and asynchronous by nature, which means tasks can run in the background without blocking the main thread. Prior to ES2017, asynchronous code was mainly handled using c...