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JavaScript Online Compiler

Write, run, and test JavaScript code directly in your browser. Perfect for learning and quick prototyping.

JavaScript Editor Ready

Output:

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About JavaScript

JavaScript is the programming language of the web. It’s a versatile, high-level language that runs in browsers and enables interactive web pages. With modern frameworks, JavaScript is used to build rich, interactive applications.

Why JavaScript?

Common Use Cases

Quick Start Example

Here’s a simple JavaScript program to get you started:

// Print Hello World
console.log("Hello, World!");

// Variables and data types
const name = "JavaScript";
let version = "ES2024";
var isAwesome = true;

console.log(`${name} ${version} is awesome: ${isAwesome}`);

// Arrays and loops
const numbers = [1, 2, 3, 4, 5];
numbers.forEach(num => {
  console.log(`Number: ${num}`);
});

// Functions
function greet(name) {
  return `Hello, ${name}!`;
}

console.log(greet("Developer"));

JavaScript Features

Modern JavaScript (ES6+)

Learning Resources