detach method

  1. @Deprecated('Use "changeDetection: ChangeDetectionStrategy.onPush" instead')
void detach()

Detaches the component from the change detection hierarchy.

A component whose change detector has been detached will be skipped during change detection until reattach is called. This strategy could be used for specific optimizations around components that are not visible to the user (such as modals or popups) but are loaded.

NOTE: Lifecycle events (such as ngOnInit, ngAfterChanges, and so on) are still called if the component has been detached. We may consider changing this behavior in the future: b/129780288.

In most cases simply using ChangeDetectionStrategy.onPush and calling markForCheck is preferred as it provides the same contract around not checking a component until it is dirtied.

WARNING: This API should be considered rather rare. Strongly consider reaching out if you have a bug or performance issue that leads to using detach over ChangeDetectionStrategy.onPush / markForCheck.

Implementation

@Deprecated('Use "changeDetection: ChangeDetectionStrategy.onPush" instead')
void detach() {
  detachDeprecated();
}