What are NPM Scripts?
NPM scripts are commands you define in your package.json file to automate tasks like:
- Running your app
- Testing
- Building
- Cleaning up files
They make it easy to manage common tasks with simple commands.
Defining Scripts in package.json
Inside package.json, the scripts section lets you name and define commands:
{
"scripts": {
"start": "node index.js",
"test": "echo \"Running tests...\" && exit 0",
"dev": "nodemon index.js"
}
}
Each script can be run from the command line using npm run <script-name>.
Running NPM Scripts
To run a script, use:
npm run dev
For the special start script, you can just use:
npm start
And for test:
npm test
Common Uses for NPM Scripts
- Start your app
- Run tests
- Use tools like nodemon or webpack
- Build or bundle your code
- Lint or format your code
Summary
NPM scripts help automate and simplify project tasks.
Define them in package.json and run them easily with npm.
