How do I set up Jest for my JavaScript project?

How do I set up Jest for my JavaScript project?

To set up Jest, first install it using npm with the command: npm install --save-dev jest. Then, add a test script in your package.json.

What should I include in my package.json for Jest?

In your package.json, add a "test" script like this: "test": "jest". This allows you to run tests using npm test.

Do I need to configure anything else?

You might want to create a jest.config.js file for custom configurations, but Jest works out of the box for most cases.

How do I write my first test?

Create a tests directory, then add a file like example.test.js. Use test('description', () => { /* test code */ }); to write your test.