Angular 2在连续对焦时更改输入值并连续输入相同的值

Question

I am trying to substract input value on focousout by 1. The strange problem is that it does the first time when I enter 100 and click aside(I get in view 99), but the second time I enter 100, it doesn't change although I can see in debug mode that the num property has been changed.

For this purpose I am just using one way binding and focusout event.

In html:

<input type="text" #numElement [ngModel]="num"    
(focusout)="distractByOne(numElement.value)" />

In Component:

distractByOne(val) {
  this.num = +val-1;
}

Answer 1

have you tried with ..

<input type="text" #numElement [ngModel]="num"    
(focusout)="distractByOne($event)" />

In Component:

distractByOne(val) {
  this.num = +val-1;
}

Hope it helps you ...