小编Luc*_*mnt的帖子

这是我的Angular5应用程序中的一个小数据服务.我试图从数组中添加/删除项目(实际上是一个BehaviorSubject).

data.service.ts

private roomArr_source = new BehaviorSubject<any[]>([]);
current_roomArr = this.roomArr_source.asObservable();

addRoomArr(data: any) {
    this.roomArr_source.next(this.roomArr_source.getValue().concat([data]));
}

removeRoomArr(data: any) {
    this.roomArr_source.forEach((item, index) => {
        if(item === data) { this.roomArr_source.splice(index, 1); }
    });
}

addRoomArr函数有效,但不适用于removeRommArr.错误是:

error TS2345: Argument of type '(item: any, index: any) => void' is not assignable to parameter of type '(value: any[]) => void'.
error TS2339: Property 'splice' does not exist on type 'BehaviorSubject<any[]>'.

不知何故,我必须将我的BehaviorSubject转换为数组,以便我可以使用.forEach().我怎么能做到这一点？

谢谢

我正在使用带有FOSUserBundle的Angular5和Symfony 3.4.

我有类似的东西:

register(username: string, email: string, first: string, second: string)
{
  return this.appHttp.post('register', {username, email, first, second}).subscribe(
    data => {
       this.appHttp.logRequest(data);
    }
  );
}

我需要发送给API的是一个格式化的json,如:

{
  "email": "email@test.com",
  "username" : "userTest",
  "plainPassword" : {
    "first" : "123",
    "second": "123"
   }
}

目前,我的json看起来像:

{
  "email": "email@test.com",
  "username" : "userTest",
  "first": "123",
  "second": "123",
}

我如何发布所需的json？

谢谢!