View source for AngularJS change detection

In [[AngularJS]], a '''change detection''' checks for changes in the data model so that it can re-render the DOM.

Changes are caused by events, XHR, and times.

Each component has its own change detector.

Use ChangeDetectionStrategy.OnPush along with immutable objects and/or observables.

To checka particular component, inject ChangeDetectorRef and call markForCheck.

== See also ==

* [[AngularJS]]
* [[AngularJS directive]]
* [[JavaScript library]]
* [[Web application]]

[[Category:AngularJS]]
[[Category:Web design and development]]
[[Category:JavaScript]]