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bundlers

What is Vite and why is it faster than traditional bundlers?

vite
bundler
dev-server
build-tool
Quick Answer

Vite is a modern build tool with lightning-fast dev server using native ES modules (no bundling during development) and optimized production builds with Rollup. It's faster because it serves files on-demand instead of bundling everything upfront.

Detailed Explanation

Why Vite is Fast:

Development:

  • No bundling - serves native ES modules
  • On-demand compilation
  • Hot Module Replacement (HMR)
  • Pre-bundles dependencies (esbuild)

Production:

  • Uses Rollup for optimized builds
  • Automatic code splitting
  • Tree shaking
  • CSS code splitting

Vs Traditional Bundlers:

  • Webpack: Bundles everything, slower startup
  • Vite: Serves as-needed, instant startup

Features:

  • TypeScript support built-in
  • JSX/React support
  • CSS modules
  • Static assets
  • Env variables

Code Examples

Vite project setup
# Create new Vite project
npm create vite@latest my-app
# Choose framework: React, Vue, Svelte, etc.
# Choose variant: JavaScript or TypeScript

cd my-app
npm install
npm run dev      # Start dev server
npm run build    # Production build
npm run preview  # Preview production build

# Project structure
my-app/
├── index.html       # Entry point
├── package.json
├── vite.config.js   # Vite config
├── src/
│   ├── main.jsx     # JS entry
│   ├── App.jsx
│   └── index.css
└── public/          # Static assets

Resources

Vite Documentation

docs

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