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Angular Keypress Event on Input Example

Angular Keypress Event on Input Example ?

Aman Jain, September 21, 2022March 16, 2024

Input events in angular can be handled using input and output decorators and in this tutorial we will learn Angular Keypress Event on Input with Example. In core javascript we use onkeypress event to handle the key events of input but in angular it there is different way to handle the input events like for key press event we use @output decorator to input element and to handle the event of keypress we use (keypress) attribute.

Angular is most popular frontend framework and it has its on guidelines to handle events, forms, rendering etc. In this example we will implement a Simple keypress Event and then we will handle it in typescript component file.

this example of keypress in angular will work in all angular version including angular 2, angular 6, angular 7, angular 8, angular 9, angular 10, angular 11, angular 12, angular 13 and angular 14 application.

Simplest way to use keypress is as follow

<input (keypress)="keyPress($event)" 
    type="text" 
    placeholder="Enter new PIN" 
/> 
keyPress(event: KeyboardEvent) {
  let  keycode = String.fromCharCode(event.charCode);
  console.log("values",event.target.value,keycode);
}

Here we simply assigned the (keypress) to input element and then handled the event in component as above.

Let’s take an example of it

Step 1 : Create an angular app

First step is to setup an angular app using below command

ng new example-app

Step 2: Create a Component

Create a component and a method

ng g c hello-world
import { Component, OnInit } from '@angular/core';
import { ActivatedRoute } from '@angular/router';

@Component({
  selector: 'app-hello-world',
  templateUrl: './hello-world.component.html',
  styleUrls: ['./hello-world.component.css'],
})
export class HelloWorldComponent implements OnInit {
  
  constructor() {
  }
  keyPress(event: any) {
    let  keycode = String.fromCharCode(event.charCode);
    console.log("values",event.target.value,keycode);
  }
  ngOnInit() {}
}

Here we used to keyPress method to handle the input

Step 3 : Create template and add html

Now, add simple html template with input field

<h2>Angular Keypress Event on Input Example</h2>

<input (keypress)="keyPress($event)" 
    type="text" 
    placeholder="Enter new PIN" 
/> 

Related

Javascript Angular angulareventkeypres

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Aman Jain
Aman Jain

With years of hands-on experience in the realm of web and mobile development, they have honed their skills in various technologies, including Laravel, PHP CodeIgniter, mobile app development, web app development, Flutter, React, JavaScript, Angular, Devops and so much more. Their proficiency extends to building robust REST APIs, AWS Code scaling, and optimization, ensuring that your applications run seamlessly on the cloud.

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