Angular is a TypeScript-based web application framework. Developed by Google and a community of individuals and companies, Angular is free and open source. Unlike jQuery, which is only available as a commercial product, Angular is free and open source for personal use. It is basically a complete rewrite of ANGularJS, a previous version of the Angular framework. It provides a better syntax and more functionality for building web applications.
Angular is a component-based framework for building web applications. The component contains the logic for the application. Whenever a user enters a value, an API call is triggered to update data or retrieve data from the server. The component’s views are also derived from the HTML template. Angular components are called Single Page Applications. They run inside a web page, and require a URL to work. The URL for a component is represented by a CSS selector and a Typescript class.
Every Angular application has a component hierarchy. A component is connected to the DOM through the root component. Each component has a class and HTML template. A component is uniquely identified by a @Component() decorator. This decorator identifies a class as a specific Angular component and adds template and metadata to the object. Each Angular application has a number of decorators to manipulate JavaScript classes and provide their own unique behavior.
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