小编Bog*_*suc的帖子

我有以下课程:

export interface ISimpleUser {
    id: number;
    full_name: string;
}


export interface IMember extends ng.resource.IResource<IMember> {
    id: number;
    project: number;
    user: number|ISimpleUser;
    skills: ISkill[];
    about: string;
    accepted: Boolean;

    updated: Date;
    created: Date;
}

在某些时候,我想迭代成员的arroy,如下例所示:

        return angular.forEach<resources.IMember>(this.project.members,
            (member: resources.IMember) => {
                return member.user.id == user.id;
            }).length > 0;

但我得到这个错误:

error TS2339: Property 'id' does not exist on type 'number | ISimpleUser'

不知道到底出了什么问题.我看到代码的其他部分使用了union类型.

谢谢.