Marks a component for check (in case of OnPush components) and synchronously performs change detection on the application this component belongs to.

Retrieves the component instance associated with a given DOM element.

If inside an embedded view (e.g. *ngIf or *ngFor), retrieves the context of the embedded view that the element is part of. Otherwise retrieves the instance of the component whose view owns the element (in this case, the result is the same as calling getOwningComponent).

Returns the debug (partial) metadata for a particular directive or component instance. The function accepts an instance of a directive or component and returns the corresponding metadata.

Retrieves directive instances associated with a given DOM node. Does not include component instances.

Retrieves the host element of a component or directive instance. The host element is the DOM element that matched the selector of the directive.

Retrieves an Injector associated with an element, component or directive instance.

Retrieves a list of event listeners associated with a DOM element. The list does include host listeners, but it does not include event listeners defined outside of the Angular context (e.g. through addEventListener).

Retrieves the component instance whose view contains the DOM element.

Retrieves all root components associated with a DOM element, directive or component instance. Root components are those which have been bootstrapped by Angular.

Partial metadata for a given component instance. This information might be useful for debugging purposes or tooling. Currently the following fields are available:

• inputs
• outputs
• encapsulation
• changeDetection

Partial metadata for a given directive instance. This information might be useful for debugging purposes or tooling. Currently only inputs and outputs metadata is available.

Event listener configuration returned from getListeners.