订阅函数外的未定义变量

Question

我正在尝试提取数组的元素，但似乎未定义。

ngOnInit() {
        this.route.params.subscribe(
            (params : Params) =>{
                this.id = params.id;
            });
            this.store.select('users').subscribe( data => {
                this.users = data.users;
            });
            this.userService.getUserDetails(this.users[this.id].userId).subscribe( 
                user => {
                   this.userToEdit = user.Data;
                   console.log(this.userToEdit); <- this is showing the object
                })
        console.log(this.userToEdit); <- undefined
        this.initForm();
    }

我应该如何在那个时候同时在订阅功能之外设置值。