take value reference angular code example
Example: set variable inside div angular
// Synchronous:
myVar = { hello: '' };
<ng-container *ngIf="myVar; let var;">
{{var.hello}}
</ng-container>
// Using async pipe:
myVar$ = of({ hello: '' });
<ng-container *ngIf="myVar$ | async; let var;">
{{var.hello}}
</ng-container>