NgSwitch

What it does

Adds / removes DOM sub-trees when the nest match expressions matches the switch expression.

How to use

<container-element [ngSwitch]="switch_expression">
  <some-element *ngSwitchCase="match_expression_1">...</some-element>
  <some-element *ngSwitchCase="match_expression_2">...</some-element>
  <some-other-element *ngSwitchCase="match_expression_3">...</some-other-element>
  <ng-container *ngSwitchCase="match_expression_3">
    <!-- use a ng-container to group multiple root nodes -->
    <inner-	          			          		
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