npm run dev

is used to start your development server when using tools like Vite, Next.js, or other modern JavaScript setups.

⚙️ What happens when you run npm run dev:

1. It looks in your package.json under the "scripts" section.

2. It finds a script like this:

"scripts": {
  "dev": "vite"
}

3. So it runs vite, which starts the Vite dev server.

4. You get a local development site — usually at http://localhost:5173.

✅ You’ll see output like:

  VITE v5.x.x  ready in 300 ms

  ➜  Local:   http://localhost:5173/
  ➜  Network: use --host to expose

Open that URL in your browser and you’ll see your app running!

If npm run dev doesn’t work, make sure you’ve done:

npm install

npm run dev