ng if else

1<div *ngIf="isLoggedIn; else loggedOut">
2  Welcome back, friend.
3</div>
4
5<ng-template #loggedOut>
6  Please friend, login.
7</ng-template>
8

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

1      
2        content_copy
3      
4      <div *ngIf="condition; then thenBlock else elseBlock"></div>
5<ng-template #thenBlock>Content to render when condition is true.</ng-template>
6<ng-template #elseBlock>Content to render when condition is false.</ng-template>
7    

1<ng-container
2  *ngIf="isLoggedIn; then loggedIn; else loggedOut">
3</ng-container>
4
5<ng-template #loggedIn>
6  <div>
7    Welcome back, friend.
8  </div>
9</ng-template>
10<ng-template #loggedOut>
11  <div>
12    Please friend, login.
13  </div>
14</ng-template>
15

1<div *ngIf="condition; then thenBlock else elseBlock"></div>
2<ng-template #thenBlock>Content to render when condition is true.</ng-template>
3<ng-template #elseBlock>Content to render when condition is false.</ng-template>
4    

1<div *ngIf="isValid;else other_content">
2    content here ...
3</div>
4
5<ng-template #other_content>other content here...</ng-template>
6