Anil Singh | Code-sample.com

How to restrict alphabets and special characters input in textbox Angular 7? I am sharing an example for allowing only numbers in Textbox Angular 7, following steps involved:- 1.       Create Angular directive to allow only numbers input 2.       Import this directive in module 3.       Use the above-created directive in your components to apply this Let’s see the example – Create Directive to allow only numbers input – import { Directive , ElementRef , HostListener , Input } from '@angular/core' ; import { NgControl } from '@angular/forms' ; @ Directive ({   selector: '[numbersOnly]' }) export class OnlynumberDirective {   constructor ( private _el : ElementRef ) { }   @ HostListener ( 'input' , [ '$event' ]) onInputChange ( event ) {     const initalValue = this . _el . nativeElement . value ;     this . _el ....