ngModelChange called when the input lose focus (type number

I’m submitting a…

[ ] Regression (a behavior that used to work and stopped working in a new release)
[x] Bug report  
[ ] Feature request
[ ] Documentation issue or request
[ ] Support request => Please do not submit support request here, instead see https://github.com/angular/angular/blob/master/CONTRIBUTING.md#question

Current behavior

When using the ngModel and ngModelChange in an input with type number, the function ngModelChange called when value changes and when the input loses the focus.

Expected behavior

Using the ngModel and ngModelChange in an input with type number behave like a string input type.

Minimal reproduction of the problem with instructions

When using the ngModelChange with input (default string type ), the ngModelChange function called one time. But when we change the type to number, the function called when the input loses the focus also.

Component

 /**
 *  ngModelChange callback 
 */
  test_event(value) {
    console.log(value);
  }

html

• Event called one time, even if the input lose the focus

 <input [(ngModel)]="test_counter"  (ngModelChange)="test_event($event)">

• event called when input lose the focus

 <input [(ngModel)]="test_counter" type="number"  (ngModelChange)="test_event($event)">

What is the motivation / use case for changing the behavior?

Environment

Angular version: 4.4.6


Browser:
- [x] Chrome (desktop) version 64.0.3282.140
- [ ] Chrome (Android) version XX
- [ ] Chrome (iOS) version XX
- [ ] Firefox version XX
- [ ] Safari (desktop) version XX
- [ ] Safari (iOS) version XX
- [ ] IE version XX
- [ ] Edge version XX
 
For Tooling issues:
- Node version: v6.11.5
- Platform:  Windows  

Others:

[trotyl]

I personally agree this should be improved, please waiting for Angular team to determine.

[angular-automatic-lock-bot[bot]]

This issue has been automatically locked due to inactivity. Please file a new issue if you are encountering a similar or related problem.

Read more about our automatic conversation locking policy.

_{This action has been performed automatically by a bot.}