Answers for "how to use ngif else in angular"

ngif else

<div *ngIf="isLoggedIn; else loggedOut">
  Welcome back, friend.
</div>

<ng-template #loggedOut>
  Please friend, login.
</ng-template>

ng if else

<div *ngIf="condition; then thenBlock else elseBlock"></div>
<ng-template #thenBlock>Content to render when condition is true.</ng-template>
<ng-template #elseBlock>Content to render when condition is false.</ng-template>

ngif else

<div *ngIf="isValid;else other_content">
    content here ...
</div>

<ng-template #other_content>other content here...</ng-template>