AngularJS is a front-end framework that allows developers to create a web application. This framework includes two parts: a controller and a view. The controller is the main logic of your web application. Each time a user submits a form, the controller will make an API call to update data stored on the server and change the view. Single-page applications built with Angular are called SPAs and are run in a web page. To run, they need an URL. Using the routing function, you can pass values from the DOM to the presentation logic.

Components can be used in templates to improve the user experience. This component can be used to display appropriate values based on the location of the user. Angular provides predefined pipes for common transformations, but users can also define custom ones. Service classes are used to store data and logic that is shared across multiple components. They are defined in the Angular application using the @Injectable() decorator. These service classes are used to inject data and logic to components.

Angular is also a great framework for building Progressive Web Apps. This framework offers a robust set of tools for web development and a large ecosystem of third-party tools. Its simplicity and power make it the perfect choice for beginners. While Angular is complex to learn, it is also an excellent choice for experienced developers who want to build high-quality applications. When you use Angular, you can expect better performance and greater stability than you can achieve with any other framework.