NgSwitch

The [ngSwitch] directive on a container specifies an expression to match against. The expressions to match are provided by ngSwitchCase directives on views within the container.

• Every view that matches is rendered.
• If there are no matches, a view with the ngSwitchDefault directive is rendered.
• Elements within the [NgSwitch] statement but outside of any NgSwitchCase or ngSwitchDefault directive are preserved at the location.