How do you write a unit test case in JavaScript?
JavaScript Unit Testing is the most commonly-used method where you write JavaScript test code for a web application or web page module. We then combine it with HTML in the form of inline event handler. It is then executed via the browser for testing if every functionality works as per our desire. We also organise these unit tests as a part of the test suite.
Learn more about JavaScript Unit Testing: How to Start Unit Testing Your JavaScript Code