Template Container Angular

The result is a subscription that follows the lifecycle of the presentational dashboard component and emits heroes into the heroes input property. Example 1 angular process of interpreting structural directives. If there is no structural directive and you merely wrap some elements in a ng template those elements disappear.

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Ng container with ngswitch the ng container can be used with ngswitch to avoid extra html element which works as host element for ngswitch and ngswitchcase.

Template container angular. Like the name indicates the ng template directive represents an angular template. The ng template is an angular element for rendering html. Angular is a platform for building mobile and desktop web applications. Layouttemplate is the name of the template that is being rendered and context is used to register all the state that the toggle component is providing to the layouttemplate.

The answer is that angular manages the subscription for us. You may be familiar with the component template duality from your experience with model view controller mvc or model view viewmodel mvvm. Shown above is the angular interpretation of ngif. It is never displayed directly.

We declaratively instruct angular to subscribe to the top heroes observable by using the async pipe in the container component template. Consider a simple example of ngif. That s the fate of the middle hip. Angular wraps the host element to which the directive is applied inside ng template and consumes the ng template in the finished dom by replacing it with diagnostic comments.

Angular provides an easy way to use this concept of stamping out views from templates with ngtemplateoutlet. Ng container as host element for ngswitchcase. Join the community of millions of developers who build compelling user interfaces with angular. This means that the content of this tag will contain part of a template that can be then be composed together with other templates in order to form the final component template.

The ng container can be used with ngswitch in following ways. In fact before rendering the view angular replaces the ng template and its contents with a comment. Ngtemplateoutlet is a directive that takes a templateref and context and stamps out an embeddedviewref with the provided context. The angular application manages what the user sees and can do achieving this through the interaction of a component class instance the component and its user facing template.

So the ng container element helps us a lot in such cases.