Jul 27, 2025 · JavaScript, in short JS, was created in 1995 by Brendan Eich, who was working at Netscape Communications. In the beginning, it was designed to add interactivity to websites. …

Apr 14, 2025 · Discover how JavaScript actually works behind the scenes. Learn about the Event Loop, Web APIs, Task Queue, MicroTask Queue, and how JS efficiently manages concurrent operations.

May 30, 2023 · It explains how the JavaScript engine executes code, the runtime, and its components. It also goes on to explain optimization strategies and highlight performance considerations.

Oct 10, 2025 · First, you’ll get the big picture. Then, step by step, you’ll learn the parts that matter. Finally, you’ll see practical code examples and a few quick reference tables. I have shared resources …

When you give JavaScript a list of tasks, it needs a way to remember which one it is doing right now. That’s where the call stack comes in. Think of it like a stack of sticky notes. JavaScript...

Feb 10, 2025 · Here is a simplified step-by-step explanation of the way a JavaScript engine works: 1. Parsing: Understanding the Code. The first step is parsing, where the engine converts JavaScript …

Mar 7, 2025 · However, many programmers often start using JavaScript without fully understanding how it fundamentally works. In this article, we will explore the core concepts behind JavaScript and …

When you execute JavaScript code, several intricate processes occur behind the scenes. The JavaScript engine parses your code, creates execution contexts, and manages memory. All of this …

Many developers write functions, use async calls, or deal with variables without truly knowing how JavaScript handles them under the hood. But here’s the thing: understanding this can save you …

Nov 30, 2025 · Welcome to the MDN beginner's JavaScript course! In this article we will look at JavaScript from a high level, answering questions such as "What is it?" and "What can you do with …