Why does my Next.JS edit code work (on npm run start)? without new build (on npm run build)

Question

Why does my Next.JS edit code work (on npm run start)? without new build (on npm run build). I wonder why it is so. Or did I do something wrong?

Answer 1

In nextjs.. if you want to run development server, you have to run

 npm run dev

npm run start --> Runs your production build.

Please check your scripts in package.json

Answer 2

// my scripts in package.json

"scripts": { "dev": "next dev -p 5000", "build": "next build", "start": "node server.js", "lint": "next lint" }