[[Angular Routing]] Guards are functions that first run to check whether the conditions match when navigating to or exit a route.

1. CanActivate use CanActivateFn instead If condition is true, allow to access this route
2. CanDeactivate use CanDeactivateFn instead If condition is true, allow to navigate to other route from current route
3. CanLoad use CanMatchFn instead
4. CanMatch use CanMatchFn instead If condition is true, navigation continues. If false, it will match other routes

Class based Route guards deprecation

Angular 16 prefer functional guards, all Route guards interface are now deprecated. Functional guards can be used directly in Route config

const routes: Route[] = [
  {
    path: 'first-component',
    component: FirstComponent,
    canActivate: [() => inject(myGuard).canActivate()]
  }
];