CanReuse

Defines route lifecycle method routerCanReuse, which is called by the router to determine whether a component should be reused across routes, or whether to destroy and instantiate a new component.

The routerCanReuse hook is called with two ComponentInstructions as parameters, the first representing the current route being navigated to, and the second parameter representing the previous route.

If routerCanReuse returns or resolves to true, the component instance will be reused and the OnDeactivate hook will be run. If routerCanReuse returns or resolves to false, a new component will be instantiated, and the existing component will be deactivated and removed as part of the navigation.

If routerCanReuse throws or rejects, the navigation will be cancelled.

Example

{@example router/ts/reuse/reuse_example.ts region='reuseCmp'}