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JavaScript Programming Introduction

JavaScript is a high-level, dynamically typed scripting language created by Brendan Eich at Netscape in 1995. It was originally built to make web pages interactive and now runs not just in browsers but also on servers via runtimes like Node.js. JavaScript supports event-driven, functional, and object-oriented programming styles. Together with HTML and CSS, it’s one of the three core technologies of the web — handling everything from DOM manipulation to async data fetching.

Why Learn JavaScript?

  • Runs natively in every web browser — no extra setup needed.
  • Powers both frontend (DOM, UI interactivity) and backend (Node.js).
  • Asynchronous programming model fits well with modern web APIs.
  • Massive ecosystem via npm.

Structure of a JavaScript Program

// A simple JavaScript program
console.log("Hello, World!");
ComponentPurpose
console.log()Prints output to the browser/Node.js console
No entry-point function requiredScript runs top-to-bottom when loaded
; (optional)Statement terminator, often used for clarity
This is a starter page — more JavaScript topics (DOM, ES6+, async programming) will be added here as modules, the same way the C Language section is structured.