Angular 2 radio button events

What are those events called in Angular 2 when radio button is selected or unselected.

Something like

<input type="radio" (select)="selected()" (unselect)="unselected()" />

So when I click one radio button in a group, it will fire selected() for the new selection and unselected() for the previous selection.


It works,

<input type="radio" (change)="handleChange($event)" />

But you need code more to judge 'selected' or 'unselected'.
You may try this in your *.ts file:

  export class Comp {

    private _prevSelected: any;

    handleChange(evt) {
      var target =;
      if (target.checked) {
        this._prevSelected = target;
      } else {