Explain the @Component Decorator.

TypeScript class is one that is used to create components. This genre of class is then decorated with the “@Component” decorator. The decorato’s purpose is to accept a metadata object that provides relevant information about the component.  

The image above shows an App component – a pure TypeScript class decorated with the “@Component” decorator. The metadata object that gets accepted by the decorator provides properties like templateUrl, selector, and others, where the templateUrL property points to an HTML file defining what you see on the application.