In Angular, the following building blocks are essential:
Components: A component can control several views, each of which is a different area of the screen. The root component is a required component in all Angular applications. The root module, the primary module, bootstraps this component. All of the components contain the application’s logic, which is described as a class, with the class’s primary function being to interact with the view via an API of functions and properties.
Data binding: The method through which the various portions of a template communicate with the component is known as data binding. The binding markup must be included in the HTML template so that Angular can understand how the component and template are connected.
Dependency injection: It employs DI to provide the new components with the appropriate dependencies, namely services. The function Object() { [native code] } arguments of a component notify Angular about the various services that the component requires, and DI provides a mechanism to provide the new class instances the dependencies they require.
Directives: Directives assist Angular to understand how to modify the DOM while manifesting the template because Angular templates are dynamic.
Metadata: With the aid of decorators, classes have information attached to them so that Angular knows how to handle them.
Modules: A module, often known as a NgModule, is a logically structured piece of code with a single workflow. The root module is present in all Angular apps, and the majority of them have several modules.
Routing: The Angular router aids in the interpretation of a browser’s URL to obtain a client-generated experience and display. This router is tied to page links so that when a user clicks on one, Angular will proceed to the application view.
Services: Service is a broad term that encompasses anything from functions and values to features that are important in an Angular application.
Template: Each component’s view is associated with a template, which is a form of HTML element that helps Angular to determine how it should render the component.