> Bun: The Fast and Easy JavaScript Runtime_

Bun is a blazing-fast JavaScript runtime that runs Node.js-compatible scripts, installs npm modules faster, and comes with an integrated bundler, transpiler, and package manager. If you’re looking for speed, simplicity, and modern JS development, Bun is your weapon of choice.

## 1. What is Bun?

• >Written in Zig for performance.
• >Fully compatible with JavaScript and TypeScript.
• >Replaces Node.js and Deno in many scenarios.
• >Includes bun install for extremely fast dependency management.
• >Comes with built-in tools: HTTP server, bundler, transpiler.

## 2. Installing Bun

### macOS / Linux

terminal
curl -fsSL https://bun.sh/install | bash

### Windows (via WSL)

• >Use the Linux instructions inside WSL or Git Bash.

Check installation:

terminal
bun --version

## 3. Running Your First Script

Create hello.js:

terminal
console.log("Hello from Bun!");

Run it:

terminal
bun hello.js

Quote:

Bun runs scripts 3–5x faster than Node.js in many cases.

## 4. Bun as a Web Server

Create server.js:

terminal
import { serve } from "bun";

serve({
  fetch(req) {
    return new Response("SovietGhost says hi from Bun!");
  },
  port: 3000
});

console.log("Server running on http://localhost:3000");

Run it:

terminal
bun run server.js

Visit http://localhost:3000 — you’ll see your message instantly.

## 5. Using npm Modules

Bun supports npm packages natively.

Install dependencies:

terminal
bun add axios

Use it:

terminal
import axios from "axios";

const res = await axios.get("https://api.github.com");
console.log(res.data);

Quote:

Bun handles installs significantly faster than npm/yarn.

## 6. Project Structure with Bun

terminal
my-bun-project/
├─ package.json
├─ bun.lockb
├─ index.js
└─ server/
    └─ routes.js

• >bun.lockb — Bun’s lockfile.
• >index.js — main entry point.
• >server/routes.js — modular server routes.

## 7. TypeScript Support

• >Bun can run TypeScript without extra setup:

terminal
bun run app.ts

• >No tsconfig.json needed for simple projects.
• >Fast compilation and instant execution.

## 8. Why Bun is Awesome

• >Speed: Native Zig implementation for extreme performance.
• >Simplicity: One tool for runtime, package management, and bundling.
• >Modern APIs: Fetch, WebSocket, and more built-in.
• >Minimal Overhead: Fewer dependencies than Node.js + separate bundlers.

## 9. Next Steps

• >Explore Bun’s HTTP server and WebSocket examples.
• >Use bun:bundle for front-end projects.
• >Benchmark your Node.js projects against Bun for speed gains.
• >Integrate Bun with TypeScript + React for modern web apps.

Quote:

“Bun isn’t just fast. It’s the shortcut to modern, hacker-friendly JavaScript.”

Conclusion:

Bun is an all-in-one runtime for developers who want speed, simplicity, and modern features. By mastering Bun, you can run scripts, build servers, and manage packages faster than ever, freeing you to focus on building and hacking smarter.