Angular is a development platform, built on TypeScript. As a platform, Angular includes:

• A component-based framework for building scalable web applications
• A collection of well-integrated libraries that cover a wide variety of features, including routing, forms management, client-server communication, and more
• A suite of developer tools to help you develop, build, test, and update your code

With Angular, you're taking advantage of a platform that can scale from single-developer projects to enterprise-level applications.

The following is a minimal Angular component.

import { Component } from '@angular/core';

@Component({
  selector: 'hello-world',
  template: `
    <h2>Hello World</h2>
    <p>This is my first component!</p>
  `
})
export class HelloWorldComponent {
  // The code in this class drives the component's behavior.
}

To use this component, you write the following in a template:

<hello-world></hello-world>

When Angular renders this component, the resulting DOM looks like this:

<hello-world>
  <h2>Hello World</h2>
  <p>This is my first component!</p>
</hello-world>