Data binding defines the communication between a component and DOM. There are three types

1. From the component to the DOM
   <li>Age: {{user.age}}</li>
2. From the DOM to the Component
   <button (click)="register()"></button
3. Two-way binding(It allows to have the data flow both ways. Both the DOM and component property are in sync)
   <input type="name" [(ngModel)]="user.name">