小编E. *_*mov的帖子

可以影响像Promise.all这样的两个动作吗？例:

@Effect()
pulic addUser() {
   return this.actions$.ofType(user.ADD)
      .switchMap(() => {
         return this.userService.add();
      })
      .map(() => {
         return new user.AddSuccessAction();
      });
}

@Effect()
pulic addUserOptions() {
   return this.actions$.ofType(userOptions.ADD)
      .switchMap(() => {
         return this.userOptionsService.add();
      })
      .map(() => {
         return new userOptions.AddSuccessAction();
      });
}

@Effect()
public complete() {
   return this.actions$.ofType(user.ADD_SUCCESS, userOptions.ADD_SUCCESS)
      // how to make it works like Promise.all ?
      .switchMap(() => {
         return this.statisticService.add();
      })
      .map(() => {
         return new account.CompleteAction();
      });
}

更新 我想要实现的是Promise.all的simillar行为.如何并行调度两个效果,等待所有效果都解决,然后发出第三个动作.像https://redux-saga.js.org/docs/advanced/RunningTasksInParallel.html这样的承诺它是非常明显的:

Promise.all([fetch1, fetch2]).then(fetch3);

是否有可能在ngrx /效果？或者在ngrx /效果中它是错误的方式？ …

我想动态创建一个URL树,并在Angular的路由器中使用它而不是"魔术"字符串.我有这些课程:

export abstract class UrlNode {
    protected parentUrl?: string;
    protected abstract shortUrl: string;

    constructor(parent: UrlNode) {
        this.parentUrl = parent && parent.path;
    }

    public get segmentUrl(): string {
        return this.shortUrl;
    }

    public get path(): string {
        if (!this.parentUrl) {
            return this.shortUrl;
        }

        if (!this.shortUrl) {
            return this.parentUrl;
        }

        return `${this.parentUrl}/${this.shortUrl}`;
    }
}

export class Profile extends UrlNode {
    protected shortUrl = "profile";
}

export class User extends UrlNode {
    public readonly profile: Profile;
    public readonly someSubroute: SomeSubroute;

    protected shortUrl = "user"; …