Angular, typescript change detection input text

angular typescript onchange watch
gkucmierz picture gkucmierz · Mar 2, 2017 · Viewed 12.4k times · Source

I can't find simple and easy solution how to detect change in my textfield. I dont want to use (keypress) because the user will sometimes paste values into the field. (onchange) for example is working only when user will blur field. And I want to detect change immediately.

What is the easiest angular js $watch equivalent?

Answer

Sajeetharan picture Sajeetharan · Mar 2, 2017

use ngModelChange

input id="form_name" [(ngModel)]="quantity" (ngModelChange)="calculateTotal($event)"

Related questions

Can't bind to 'ngModel' since it isn't a known property of 'input'

I've got the following error when launching my Angular app, even if the component is not displayed. I have to comment out the <input> so that my app works. zone.js:461 Unhandled Promise rejection: Template parse errors: Can't …

Read More
Can't bind to 'formGroup' since it isn't a known property of 'form'

THE SITUATION: Please help! I am trying to make what should be a very simple form in my Angular2 app but no matter what it never works. ANGULAR VERSION: Angular 2.0.0 Rc5 THE ERROR: Can't bind to 'formGroup' since it isn't …

Read More
How can I select an element in a component template?

Does anybody know how to get hold of an element defined in a component template? Polymer makes it really easy with the $ and $$. I was just wondering how to go about it in Angular. Take the example from the tutorial: …

Read More