您可以执行以下操作，从一个效果中调度多个动作：
Now our state can stay clean andnormalized, and we’re not usingngrx/effectsfor something that isn’t a side effect. 现在 我们的状态可以保持清晰以及归一化, 我们不再对一些不是副作用的东西使用ngrx/effects。 2. Coupling actions and reducers (耦合 actions 和 reducers) Imagine you have these pro...
失去焦点事件： $("#login_username").blur() 例子全文： // 失去焦点 $("#login_username")....
(err=>Observable.of({type:'LOGIN_FAILURE',payload:err})));@Effect()logout():Observable<Action>{returnthis.actions$.ofType('LOGOUT').switchMap(()=>this.auth.logout().map(res=>({type:'LOGOUT_SUCCESS',payload:res})).catch(err=>Observable.of({type:'LOGOUT_FAILURE',payload:err})))...
Side effect model for @ngrx/store Installation To install @ngrx/effects from npm: npm install @ngrx/effects --save Example Application https://github.com/ngrx/example-app Effects In @ngrx/effects, effects are simply sources of actions. You use the @Effect() decorator to hint which observable...
第二种方法的问题再次与Oberables的工作方式有关，您无法awaitObservable。为了获得所需的结果，您应该将...
@Effect({ dispatch: false }) login$ = this.actions$.ofType<fromAuth.Login>(fromAuth.AuthActionTypes.Login).pipe( tap(() => { return this.authService.login(); }) ); @Effect() loginComplete$ = this.actions$ .ofType<fromAuth.Login>(fromAuth.AuthActionTypes.LoginComplete) ...
actions$.pipe( // you can pass in multiple actions here that will trigger the same effect ofType(MenusActions.appLoaded.type, MenusActions.addMenuItemSuccess), switchMap(() => this.apiService.getItems().pipe( map((menuItems) => MenusActions.fetchMenuSuccess({ menuItems: menuItems }) ),...
In NgRx, you can handle errors using actions and effects. When an error occurs, you can dispatch an action with the error information. Then, you can handle this action in a reducer to update the state or in an effect to perform side effects like showing a notification. Pietro GrandiView ...
Now our state can stay clean andnormalized, and we’re not usingngrx/effectsfor something that isn’t a side effect. 现在 我们的状态可以保持清晰以及归一化, 我们不再对一些不是副作用的东西使用ngrx/effects。 2. Coupling actions and reducers (耦合 actions 和 reducers) ...