Angular2 ngModelChange previous value

Question

Is there a way to get the previous(last) value of a field on ngModelChange? What I have goes something like this

HTML

<input type="text" [(ngModel)]="text" (ngModelChange)="textChanged($event)"> 

Handler

private textChanged(event) {     console.log('changed', this.text, event); } 

What I get is

changed *newvalue* *newvalue* 

Of course I can keep the older value using another variable, but is there a better way?

Answer 1

What you can do is,

DEMO : http://plnkr.co/edit/RXJ4D0YJrgebzYcEiaSR?p=preview

<input type="text"         [ngModel]="text"                      //<<<###changed [(ngModel)]="text" to [ngModel]="text"        (ngModelChange)="textChanged($event)">   private textChanged(event) {             console.log('changed', this.text, event);     this.text=event;                          //<<<###added  } 

Answer 2

So found kinda weird(at least for me) possible solution for this with least changes in the code in question. So on assigning the (ngModelChange) attribute before [(ngModel)] what I get is following with the same handler:

changed *older value* *new value* 

I get the new value in this.textlike so:

setTimeout(() => console.log(this.text), 0);