Welcome to JS Galaxy

Welcome to JS Galaxy 🌌

Everything about JavaScript in one place

JS Galaxy is the ultimate offline-first documentation website covering every aspect of JavaScript - from basics to advanced concepts, browser APIs to Node.js, testing frameworks to security practices.

🚀 What makes JS Galaxy special?

🔍 Ultra-fast Search

Lightning-fast full-text search with auto-complete, typo correction, and smart filtering across 40,000+ pages.

🛝 Interactive Playground

Test JavaScript code directly in your browser with built-in transpilation, bundling, and offline support.

🌐 Multi-language Support

Available in English and Korean (한국어) with seamless language switching.

📱 PWA & Offline

Works completely offline as a Progressive Web App. Download once, learn anywhere.

🎨 Beautiful Themes

Dark, light, and high-contrast themes with accessibility-first design.

📚 Comprehensive Coverage

From ES1 to cutting-edge proposals, browser APIs to Node.js, patterns to security.

📖 Explore the Documentation

🌱 For Beginners

Getting Started - Your first steps with JavaScript
Language Basics - Core concepts and syntax
Common Patterns - Essential programming patterns

🔧 For Developers

Language Reference - Complete JavaScript language specification
Web APIs - Browser APIs and modern web platform features
Node.js Core - Server-side JavaScript with Node.js

🏗️ For Professionals

Testing & Tooling - Modern development workflows
Security - JavaScript security best practices
Patterns & Architecture - Advanced design patterns

🧪 Interactive Learning

Code Playground - Test and experiment with JavaScript
Cookbook - Practical recipes and solutions
Ecosystem - Popular libraries and frameworks

🕒 JavaScript Through Time

Explore the History & Evolution of JavaScript from ES1 to the latest TC39 proposals, with detailed timelines and feature comparisons.

🎯 Quick Start

// Welcome to JavaScript!
console.log('Hello, JS Galaxy! 🌌');

// Explore modern features
const greet = (name = 'Developer') => `Welcome, ${name}!`;
console.log(greet('JS Galaxy Explorer'));

Try this code in the Playground →

🤝 Contributing

JS Galaxy is a community-driven project. Help us improve by:

Adding examples and use cases
Translating content to new languages
Reporting issues and suggesting improvements
Contributing to the ecosystem documentation

Ready to explore the JavaScript universe? Start with Getting Started or dive into any section that interests you!