Angular 6 - text field change event has no data

Question

I am developing new page in angular 6 application. I am trying to get the value of the current input from the 'change' event will be triggered.

My issue is that: The change event of an input has no data it just has "isTrusted" parameter !

Off-course when i am trying to get any other parameter (i.e. event.value, event.target ...etc.) it is giving me undefined.

Component HTML template & function :

 <div *ngFor="let items of item>
      <input type="text" id="{{item.id}}" (change)="dummyFunc($event)">
</div>

=======

dummyFunc(eve){
  console.log("dummy change .. "+JSON.stringify(eve));
}

output from dummyFunc is :

dummy change .. {"isTrusted":true}

I have used change and input events but it is giving me the same result. does $event object contains only "isTrusted" and doesn't have any other details or i did something wrong ?

You need to use `eve.target.value` since you are using `(change)` — Harun Yilmaz, May 02 '20 at 12:22
@HarunYilmaz .. yes it works ! But how come it is not printed when i called JSON.stringify ?? — k.elgohary, May 02 '20 at 12:26
This may help: https://stackoverflow.com/questions/41020307/why-does-json-stringify-only-show-the-istrusted-member-of-a-click-event — Harun Yilmaz, May 02 '20 at 12:28
Does this answer your question? [Angular2:getting event.target.value](https://stackoverflow.com/questions/47152847/angular2getting-event-target-value) — mr. pc_coder, May 02 '20 at 12:30

score 0 · Accepted Answer · answered May 02 '20 at 12:28

0

You need to use $event.target.value

Like this:

 <div *ngFor="let items of item>
      <input type="text" id="{{item.id}}" (change)="dummyFunc($event.target.value)">
</div>

answered May 02 '20 at 12:28

schankam

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Angular 6 - text field change event has no data

1 Answers1