PreloadingStrategy

class

提供预加载策略。

Provides a preloading strategy.

      
      abstract class PreloadingStrategy {
  abstract preload(route: Route, fn: () => Observable<any>): Observable<any>
}

子类

      
      abstract preload(route: Route, fn: () => Observable<any>): Observable<any>

`route`	`Route`
`fn`	`() => Observable`

Observable<any>