Angular 7 uses the <ng-template> as the tag instead of <template>which is used in Angular2. <ng-template> has been in use since the release of Angular 4 , and the earlier version i.e Angular 2 uses <template> for the same purpose. The reason it started to use <ng-template> instead of <template> from Angular 4 onwards is because there is a name conflict between the <template> tag and the html <template> standard tag. It will deprecate completely going ahead. This was one of the major changes made in Angular 4 version.
Let us now use the template along with the if else condition and see the output.
<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>