Observers • Angular Material

API reference for Angular CDK observers

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

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

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

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

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

Selector: [cdkObserveContent]

Exported as: cdkObserveContent

Name	Description
@Input() `debounce: number`	Debounce interval for emitting the changes.
@Input({ alias: 'cdkObserveContentDisabled', transform: booleanAttribute }) `disabled: boolean`	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.