OnDestroy
A lifecycle hook that is called when a directive, pipe, or service is destroyed. Use for any custom cleanup that needs to occur when the instance is destroyed.
interface OnDestroy {
ngOnDestroy(): void
}
Class implementations
-
NgComponentOutlet -
AsyncPipe -
NgOptimizedImage -
HashLocationStrategy -
Location -
PathLocationStrategy -
AbstractFormGroupDirective -
NgModel -
NgModelGroup -
RadioControlValueAccessor -
FormControlDirective -
FormControlName -
FormGroupDirective -
FormArrayName -
FormGroupName -
NgSelectOption -
RouterLink -
RouterLinkWithHref -
RouterLinkActive -
RouterOutlet -
RouterPreloader -
UpgradeComponent
See also
Methods
ngOnDestroy() |
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A callback method that performs custom clean-up, invoked immediately before a directive, pipe, or service instance is destroyed. |
ParametersThere are no parameters. Returns
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Usage notes
The following snippet shows how a component can implement this interface to define its own custom clean-up method.
@Component({selector: 'my-cmp', template: `...`})
class MyComponent implements OnDestroy {
ngOnDestroy() {
// ...
}
}