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@angular/routercode
TitleStrategy
Class
stable
Provides a strategy for setting the page title after a router navigation.
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API
abstract class TitleStrategy { abstract updateTitle(snapshot: RouterStateSnapshot): void; buildTitle(snapshot: RouterStateSnapshot): string | undefined; getResolvedTitleForRoute(snapshot: ActivatedRouteSnapshot): string | undefined;}
getResolvedTitleForRoute
string | undefinedGiven an ActivatedRouteSnapshot, returns the final value of the
Route.title property, which can either be a static string or a resolved value.
@returns
string | undefinedDescription
Provides a strategy for setting the page title after a router navigation.
The built-in implementation traverses the router state snapshot and finds the deepest primary
outlet with title property. Given the Routes below, navigating to
/base/child(popup:aux) would result in the document title being set to "child".
[
{path: 'base', title: 'base', children: [
{path: 'child', title: 'child'},
],
{path: 'aux', outlet: 'popup', title: 'popupTitle'}
]This class can be used as a base class for custom title strategies. That is, you can create your
own class that extends the TitleStrategy. Note that in the above example, the title
from the named outlet is never used. However, a custom strategy might be implemented to
incorporate titles in named outlets.
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