Is it possible to use jQuery to set a value for a form control within an Angular component?

I'm currently working on an Angular 5 UI project. In one of my component templates, I have a text area where I'm attempting to set a value from the component.ts file using jQuery. However, for some reason, it's not working. Any suggestions on what might be causing this issue?

<textarea id="messageTxt" formControlName="message" rows="6" [placeholder]="'PLACEHOLDERS.MESSAGE' | translate" (keyup)="calculateMessagingSegmentCount(messageTxt.value)" #messageTxt></textarea>

In my component, I'm trying the following:

@Component({
      selector: 'pc-sms-template-form',
      templateUrl: './sms-template-form.component.html',
      styleUrls: ['./sms-template-form.component.scss']
    })
    export class SmsTemplateFormComponent implements OnInit {
      ngOnInit() {

        $('#messageTxt').val("FEDEX@@@@@@ ");

       }
    }

Although I've correctly imported jQuery and there are no compilation errors, the textarea is still not displaying the value "FEDEX@@@@@@". Any insights into why this might be happening? I understand that using jQuery with TypeScript in an Angular component is not ideal, but due to certain requirements, I have to use jQuery.

Thank you.

javascriptjqueryangulartypescript

Answer №1

If you are experiencing difficulties, try removing the keyup event function and see if that resolves your problem.

Here is a snapshot of a successful demonstration for your convenience. view working sample image

Answer №2

When building a view, it is important to know when certain methods are called. Instead of using the OnInit method, it is recommended to utilize the AfterViewInit method:

@Component({
  selector: 'pc-sms-template-form',
  templateUrl: './sms-template-form.component.html',
  styleUrls: ['./sms-template-form.component.scss']
})
export class SmsTemplateFormComponent implements AfterViewInit{
  ngAfterViewInit() {

    $('#messageTxt').val("FEDEX@@@@@@ ");

   }
}

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