How can you handle events in Angular 7?


Posted On: Feb 22, 2018


There are various methods to handle events in Angular 7. These are:

1. Binding to user input events: You are able to use the Angular event binding to answer to DOM event. User input triggers so many DOM events. It is a very effective method to get input from the user.

For example,

<button (click)="onClickMe()">Click me!</button>

2. Get user input from the event object: DOM carries a cargo of the information that possibly is valuable for the components. Here is an example to show you the keyup event of an input box to obtain the user's input after every stroke

src/app/keyup.components.ts (template v.1) 
template: ` 
<input (keyup)="onKey($event)"> 
<p>{{values}} </p>

3. Key event filtering: Every keystroke is heard by the (keyup) event handler. The enter keys matter the most as it provides the sign of the user that he has done with the typing. The most efficient method of eliminating the noise is to look after every $event.keyCode and the action is taken only when the enter key is pressed.

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