How can I use Mocha for testing my JavaScript code?

How can I use Mocha for testing my JavaScript code?

Mocha is a popular JavaScript test framework that runs on Node.js. You can use it to write and run tests for your code.

What are the basic steps to set it up?

First, install Mocha using npm: npm install --save-dev mocha. Then, create a test directory and add your test files.

How do I write a simple test case?

You can write a test case using the describe and it functions. For example:

describe('Array', function() {
  it('should start empty', function() {
    const arr = [];
    assert.equal(arr.length, 0);
  });
});

Can I run tests in the browser as well?

Yes, you can use Mocha in the browser by including the Mocha script in your HTML and writing your tests in a separate JavaScript file.