How do I set up Jest for my Node.js project?

How do I set up Jest for my Node.js project?

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

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

You need to add a "test" script like this: "test": "jest". This allows you to run tests using npm test.

Do I need to configure anything else?

For basic setups, no additional configuration is needed. However, you can create a jest.config.js file for advanced settings.

How do I write my first test?

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