Do you create automatic checks for your code?

Yes, I create automated tests for my code, as it helps quickly identify errors and prevent regressions. In Node.js, testing frameworks like Jest or Mocha are often used for this purpose. Here's a simple example of a test using Jest:

const sum = (a, b) => a + b;

test('adds 1 + 2 to equal 3', () => {
  expect(sum(1, 2)).toBe(3);
});

Automated tests are integrated into the CI/CD process, which improves the quality and reliability of the code.