How do I install and verify bun?

# Install Bun Bun is a single executable. Use the official script: **macOS/Linux:** ```bash curl -fsSL https://bun.sh/install | bash ``` **Windows:** ```powershell powershell -c "irm bun.sh/install.ps1|iex" ``` Add to PATH if needed (Windows). Verify: ```bash bun --version bun --revision ``` **Prerequisites:** macOS 13+, Linux kernel 5.1+ (unzip required), Windows 10 1809+.

How do I run first scripts and init project?

# Create and Run Basic Scripts ```bash bun init my-app cd my-app bun run index.ts ``` Outputs 'Hello via Bun!'. Edit `index.ts`: ```ts console.log('Hello Bun!'); ``` Run with watch: `bun --watch run index.ts`. Explores runtime speed and TS support.

How do I manage packages with bun?

# Package Management ```bash bun add figlet bun add -d @types/figlet # For TS ``` Generates `bun.lockb` and `node_modules`. Faster than npm (25x claim). Remove: `bun remove figlet`. Run scripts: Add to package.json `"start": "bun run index.ts"`, then `bun run start`.

How do I build a web server?

# HTTP Server with Bun.serve In `index.ts`: ```ts import figlet from 'figlet'; const server = Bun.serve({ port: 3000, routes: { '/': () => new Response('Bun!'), '/figlet': () => new Response(figlet.textSync('Bun!')), }, }); console.log(`Listening on ${server.url}`); ``` ```bash bun run index.ts ``` Visit http://localhost:3000 and /figlet.

How do I test and bundle your app?

# Testing Create `example.test.ts`: ```ts import { expect, test } from 'bun:test'; test('math', () => { expect(1 + 1).toBe(2); }); ``` ```bash bun test ``` # Bundling ```bash bun build ./index.ts --outdir ./dist --minify ``` Run bundled: `bun run ./dist/index.js`. Supports `--target bun` for bytecode.

Master Bun: Fast JS Runtime in 5 Steps

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Instant Toolkit

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Step-by-Step Guide

1

Install Bun

Bun is a single executable. Use the official script:

macOS/Linux:

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

Windows:

powershell -c "irm bun.sh/install.ps1|iex"

Add to PATH if needed (Windows). Verify:

bun --version
bun --revision

Prerequisites: macOS 13+, Linux kernel 5.1+ (unzip required), Windows 10 1809+.

Why this step matters:

-Sets up a high-performance JS environment instantly
-Enables running TS/JSX without extra tools

15-30 minutes

Terminal/Command Prompt, curl (macOS/Linux), PowerShell (Windows), unzip (Linux)

$0

Definition of Done

•bun --version shows 1.x.y
•bun --revision displays build info
•No PATH errors

Common Mistakes to Avoid

❌ bun command not found after install

→Restart terminal or add ~/.bun/bin to PATH manually

❌ Missing unzip on Linux

→Run sudo apt install unzip first

❌ Wrong Windows PATH

→Use [Environment]::SetEnvironmentVariable to add .bun\bin

2

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Suggested Videos

Bun Tutorial – JavaScript Runtime (Node.js Alternative) [Full Course]

Bun Crash Course | JavaScript Runtime, Bundler & Transpiler

Learn BUN like an EXPERT in just 15 minutes

📚
Learning Resources

📖 Online Courses

Mastering Bun - The Modern Fullstack Development

beginner

Paid

Udemy

Build Servers with Bun and TypeScript

intermediate

Paid

Udemy

📖 Recommended Books

The Fastest JavaScript Server Environment: Bun Runtime Essentials

beginner

by Unknown

The Complete Guide to Bun: The Lightning-Fast JavaScript Runtime

intermediate

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🌐 Helpful Websites

Bun Official Documentation

documentation

Complete docs for runtime, CLI, bundler, and more

Bun GitHub Repository

repository

Source code, releases, and examples

Bun Quickstart Guide

tutorial

Hands-on Hello World server tutorial

🛠️ Useful Tools

Bun

Runtime

All-in-one JS runtime, bundler, package manager

Master Bun: Fast JS Runtime in 5 Steps