Event binding is a type of data binding in Angular that allows you to respond to events that occur in the view, such as button clicks, form submissions, mouse movements, and keyboard inputs. Event binding provides a way to bind a DOM event to a method of the component, which is executed when the event occurs.

The syntax for event binding in Angular is (event)="expression", where "event" is the name of the DOM event (e.g., click, submit, mouseover, keydown), and "expression" is the name of the method to be executed when the event occurs.

For example, if you want to execute a method named "onButtonClick" when a button is clicked, you can use the following event binding syntax:

<button (click)="onButtonClick()">Click me</button>

In the component class, you can define the "onButtonClick" method as follows:

export class MyComponent {

  onButtonClick() {

    console.log("Button clicked");

  }

}

When the button is clicked, the "onButtonClick" method is called, and the message "Button clicked" is logged to the console.

Event binding can also pass data from the view to the component using event objects or template variables. For example, you can pass the value of an input field to a method when the user submits a form:

<input type="text" #inputValue>

<button (click)="onSubmit(inputValue.value)">Submit</button>

In the component class, you can define the "onSubmit" method to receive the input value:

export class MyComponent {

  onSubmit(value: string) {

    console.log("Input value: " + value);

  }

}

Overall, event binding is a powerful feature of Angular that allows you to create dynamic and interactive applications by responding to user actions and updating the component's state accordingly.