npm Scripts

Define scripts

Add entries under scripts in package.json.

{
  "scripts": {
    "start": "node server.js",
    "dev": "node --watch server.js",
    "test": "node --test"
  }
}

Run them

Shortcuts: npm start and npm test need no run. Others use npm run.

npm start
npm run dev
npm test

Pass extra args

Use -- so flags reach your script.

npm run start -- --port 3000

Why scripts help

Teammates run the same named tasks without caring which tool or flag layout you chose.