How do I use scripts in package.json?

How do I use scripts in package.json?

You can define scripts in the "scripts" section of your package.json file. For example, you can add a script to start your app.

Can you show me an example of a script?

Sure! Here's a simple example:

"scripts": { "start": "node app.js", "test": "jest" }

This allows you to run npm start to start your app and npm test to run tests.

What if I want to run multiple commands in one script?

You can use the && operator to chain commands. For example:

"scripts": { "build": "npm run clean && npm run compile" }

This will run npm run clean first, and if it succeeds, it will run npm run compile.

Can I pass arguments to these scripts?

Yes, you can pass arguments by using -- after the script name. For example:

npm run test -- --watch

This will pass the --watch argument to your test script.