AngularJS is a very powerful JavaScript framework. Many organizations use this framework to build their front-end single-page applications easily and quickly. With AngularJS, you can create reusable code to reduce code duplication and easily add new features.
According to the stats, 4,126,784 websites are AngularJS customers. As AngularJS has gained popularity in the web development community, its testing frameworks have had to grow along with it. Currently, the most popular framework for unit testing Angular applications is Jasmine, and several others are gaining traction.