How to get Id of selected value in Mat-Select Option in Angular 5 : <p>How to get the id of selected option value in mat-select angular 5. Get only value of selected option in onchangeevent. but how can get id of selected option value.</p>

<pre><code> client.component.html
&lt;mat-form-field&gt;
    &lt;mat-select placeholder="Client*" #clientValue  (change)="changeClient($event)"&gt;
    &lt;mat-option  *ngFor="let client of clientDetails"   [value]="client.clientName"&gt;
      {{client.clientName |  json}}
    &lt;/mat-option&gt;
  &lt;/mat-select&gt;
&lt;/mat-form-field&gt;

client.component.ts file
export class Client{
     changeClient(event){
     console.log(event);
 }
}
</code></pre>
