use a value from service to show or hide angular code example

Example 1: hide and show in angular 8

<button (click)="toggleShow()" type="checkbox" >show/hide</button>

<div *ngIf="isShown" class="row container-fluid"  id="divshow" >
Div Content

</div>

Example 2: hide and show in angular 8

isShown: boolean = false ; // hidden by default


toggleShow() {

this.isShown = ! this.isShown;

}