allenhwkim
commented
7 years ago valueChanged is only get fired when you selected from list.
If you are looking for input value change, use ngModelChange, <input [ngModel]="model1" (ngModelChange)="valueChanged($event)"/>
See http://plnkr.co/edit/3pB1Gx?p=preview and look at the console as your instructions say, totally blank, we're going to have to switch controls, uggh, like this one too.