angular input onchange
<input (change)="saverange()"/>angular input onchange
<input (change)="saverange()"/>ngchange angular 8
import { Component } from '@angular/core';
@Component({
selector: 'my-app',
template: `
<input type="number" [ngModel]="percent" (ngModelChange)="onPercentChange($event)" />
`,
styleUrls: [ './app.component.css' ]
})
export class AppComponent {
percent = 20;
onPercentChange(percent: number) {
console.log('here');
this.percent = percent;
}
}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)
}
}javascript ng-change get previous value
//user.id passed to updateValue will be old value
<select ng-change="updateValue('{{user.id}}')"
ng-model="user.id" ng-options="user.id as user.name for user in users">
</select>Copyright © 2021 Codeinu
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