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@title QuickStart
@description
Angular applications are made up of components. A component is the combination of an HTML template and a component class that controls a portion of the screen. Here is an example of a component that displays a simple string:
Try this QuickStart example on Plunker without installing anything. Try it locally with the QuickStart seed and prepare for development of a real Angular application.
Every component begins with an @Component decorator
function that takes a metadata object. The metadata object describes how the HTML template and component class work together.
The selector property tells Angular to display the component inside a custom <my-app> tag in the index.html.
The template property defines a message inside an <h1> header.
The message starts with "Hello" and ends with {{name}},
which is an Angular interpolation binding expression.
At runtime, Angular replaces {{name}} with the value of the component's name property.
Interpolation binding is one of many Angular features you'll discover in this documentation.
In the example, change the component class's name property from 'Angular' to 'World' and see what happens.
This example is written in TypeScript, a superset of JavaScript. Angular uses TypeScript because its types make it easy to support developer productivity with tooling. You can also write Angular code in JavaScript; this guide explains how.
Next step
Start learning Angular.