An event can be triggered by a component or a template. Its value is a property that Angular recognizes and associates with the corresponding class. For example, when a user clicks a button, a click event is emitted. In Angular, an event handler is a member function of a component class. Its type is either a property of an element, or an object.

Angular 4 offers a number of performance improvements over Angular 2. Compared to Angular 2, it is backward compatible, meaning it can be easily adapted to any type of application. The latest version also offers support for mobile devices. A new in-built compiler makes Angular 4 even easier to integrate into your app. It also allows you to use Angular cli to scaffold your Angular projects. Its benefits make it one of the fastest way to build applications with Angular.

The Angular language also features a rich set of prebuilt components. This includes navigation elements, form controls, buttons, indicators, modal windows, and data tables. The framework supports nearly every IDE and editor and allows developers to focus on building apps, instead of writing code. As a result, Angular is fast and easy to use, allowing developers to create more innovative and productive web applications. It also supports a vast array of components, making it easy to integrate them into your projects.

Components simplify the application by funneling logic into a single section of the interface. These components are Angular’s building blocks. When creating a component, you need to specify its classes with a decorator. This decorator is a JavaScript function that tells Angular how to use them (more information). The component’s template is a combination of ordinary HTML with binding markup. Angular uses this metadata to determine which HTML and CSS template should be rendered.