Angular2打字稿映射对新类型的响应

Question

拥有

userGroups: IUserGroup[];
this.service.getUserGroups().subscribe(g => this.userGroups = g);

getUserGroups 返回IUserDifferentGroup[] 但IUserGroup 和IUserDifferentGroup 具有相同的字段另外IUserGroup 有更多，如何将响应映射到新类型？

interface IUserDifferentGroup{
    Name: string;
    Code: string;
    Id: number;
}

interface IUserGroup {
    Id: number;
    GroupName: string;
    Visible: boolean;
    IsDefault: boolean;
    CanAssociated: boolean;
}

Answer 1

在订阅中使用这个，

this.service.getUserGroups().subscribe(g => this.userGroups = g as IUserGroup[]);

编辑

根据cmets，修改，

interface IUserDifferentGroup {
    Name: string;
    Code?: string; // <-- made this optional
    Id: number;
}

interface IUserGroup {
    Id: number;
    GroupName: string;
    Visible: boolean;
    IsDefault: boolean;
    CanAssociated: boolean;
}

然后改订阅，

this.service.getUserGroups().map((g) => return {Name: g.GroupName, Id: g.Id})
 .subscribe(g => {
  this.userGroups = g as IUserGroup[];
});

看看能不能解决。