|| angular *ngIf or code example
Example 1: ngif else
<div *ngIf="isLoggedIn; else loggedOut">
Welcome back, friend.
</div>
<ng-template #loggedOut>
Please friend, login.
</ng-template>
Example 2: ngif
<div *ngIf="condition; else elseBlock">
<button class="xx" *ngIf="flag" (click)="doFunct()">Next</button>
--While (t/f boolean variable called "flag") is true
This button will be visible + click button executes function
Once this "flag" becomes false this button disapears