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Angular 2 change event - model changes

How can I get the values after a model has changed? The (change) event does fire before the model change. I do not want to use event.target.value

<input type="checkbox"  (change)="mychange(event)" [(ngModel)]="mymodel">

public mychange(event)
{
   console.log(mymodel); // mymodel has the value before the change
}
over 4 years ago · Santiago Trujillo
3 answers
Answer question

0

That's a known issue. Currently you have to use a workaround like shown in your question.

This is working as intended. When the change event is emitted ngModelChange (the (...) part of [(ngModel)] hasn't updated the bound model yet:

<input type="checkbox"  (ngModelChange)="myModel=$event" [ngModel]="mymodel">

See also

  • https://github.com/angular/angular/issues/3406,
  • https://github.com/angular/angular/issues/6311
over 4 years ago · Santiago Trujillo Report

0

If this helps you,

<input type="checkbox"  (ngModelChange)="mychange($event)" [ngModel]="mymodel">

mychange(val)
{
   console.log(val); // updated value
}
over 4 years ago · Santiago Trujillo Report

0

This worked for me

<input 
  (input)="$event.target.value = toSnakeCase($event.target.value)"
  [(ngModel)]="table.name" />

In Typescript

toSnakeCase(value: string) {
  if (value) {
    return value.toLowerCase().replace(/[\W_]+/g, "");
  }
}
over 4 years ago · Santiago Trujillo Report
Answer question
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