Angular input onchange

<input (change)="saverange()"/>

Source: stackoverflow.com

Onchange event in angular

<input [value]="foo" (change)="changeFn($event)">
<input [ngModel]="bar" (ngModelChange)="modelChangeFn($event)">

Source: ultimatecourses.com

Angular onChange onChanges SimpleChanges

export class MyClassName implements OnInit,OnChanges {
 @Input() documents: Document[] = [];
.....
ngOnChanges(changes: SimpleChanges){
    console.log("changes ", changes)
    if(changes.documents){
      console.log("changes2 ", changes)
    }
  }

Source: stackchief.com

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