Observers

API reference for Angular CDK observers

import {ObserversModule} from '@angular/cdk/observers';

link Services

link ContentObserver

An injectable service that allows watching elements for changes to their content.

Methods

observe
Observe content changes on an element.
Parameters
element Element	The element to observe for content changes.
Returns
Observable<MutationRecord[]>

observe
Observe content changes on an element.
Parameters
element ElementRef<Element>	The element to observe for content changes.
Returns
Observable<MutationRecord[]>

link Directives

link CdkObserveContent

Directive that triggers a callback whenever the content of its associated element has changed.

Selector: [cdkObserveContent]

Exported as: cdkObserveContent

Properties

Name	Description
@Input() debounce: number	Debounce interval for emitting the changes.
@Input('cdkObserveContentDisabled') disabled: any	Whether observing content is disabled. This option can be used to disconnect the underlying MutationObserver until it is needed.
@Output('cdkObserveContent') event: EventEmitter<MutationRecord[]>	Event emitted for each change in the element's content.