Angular material Datepicker get value on change

<mat-form-field>
  <input matInput [matDatepicker]="expiration1" placeholder="Expiration" [formControl]="expiration" required (dateChange)="EndDateChange($event)">
  <mat-datepicker-toggle matSuffix [for]="expiration1"></mat-datepicker-toggle>
  <mat-datepicker #expiration1></mat-datepicker>
</mat-form-field>

Please check this demo link So you will get more idea.
Example