Display a div only for few seconds in Angular

I want to display a notification on angular app only for few seconds, the event is triggered after clicking a button.

how about this:

html

<button (click)="showDiv()">Click</button>
<div *ngIf="!hideDivFlg">My Div</div>

.ts

showDiv() {
    this.hideDivFlg = false;
    setTimeout(() => {
      this.hideDivFlg = true;
    }, 4000);
}