Ionic 3: ng-change doesn't work

Question

I have a input field where a user can input his address and get auto-suggestions:

 Adresse:
             


        

Answer 1

ng-model and ng-change were used in Angular 1.

With Ionic >= 2, you can use ngModel and ionChange.

<ion-input
  type="text"
  [(ngModel)]="autocomplete.query"
  (ionChange)="updateSearch()">
</ion-input>

The parentheses signify that data binding is from the template to the component, the square brackets, component to the template. When both are present, it is a two way data binding.

For more info on template syntax, look at the Angular docs.