using the ng change in angular 2 using ng model variable

Question

How can I use the ng-change event in angular 2? Whenever the ng-model variable is changed, a function has to be called.

[(ngModel)]=\"variable\"
ngchange=variab         


        

Answer 1

component have two-way binding

• () for output
• [] for input

that means you can use ==>[value]="variable"<== for showing data on html and ==>(input)="setVariable($event)"<== to update your var in ts/js.

event.target.value

FYI==>https://angular.io/docs/ts/latest/guide/user-input.html