Testing the JavaScript code

Normally, web applications go through different types of testing, such as user interface (UI) testing, which checks the functionality of the UI by making certain inputs to the form and verifies the behavior of an application. This type of testing is mostly done manually or through automated testing tools. The other type of testing is load testing, which is used mostly to check the performance of an application and by putting up some load on the application. In simple terms, it can be an example of signing in to an application with many number of users or doing some operations through automated routines to test how the application behaves. There are a few more testing types, but the most essential type of testing that ensures the functionality of the application and certifies whether the application complies with the requirements is unit testing. In this section, we will discuss about unit testing JavaScript code using Jasmine (a popular JavaScript unit test...