说明

我正在尝试将领域对象转换为数组,如下面的History方法所示。

class RealmStore {

    @observable symptoms = {};
    @observable meals    = {};

    @computed get history(){
        return [...Object.values(this.symptoms), ...Object.values(this.meals)];
    }

    //More methods to populate this.symptoms and this.meals
}

当我登录时 this.symptoms 我在终端中得到以下输出:

{
  '0': {
    date: Fri Jun 29 2018 15: 56: 48 GMT + 0200(CEST),
    name: 'Regurgitation',
    value: 1
  },
  '1': {
    date: Fri Jun 29 2018 15: 58: 09 GMT + 0200(CEST),
    name: 'Belching',
    value: 1
  },
  '2': {
    date: Fri Jun 29 2018 16: 10: 39 GMT + 0200(CEST),
    name: 'Heartburn',
    value: 2
  },
  '3': {
    date: Fri Jun 29 2018 23: 30: 36 GMT + 0200(CEST),
    name: 'Heartburn',
    value: 1
  }
}

当我登录时 Object.keys(this.symptoms) 我的终端上有以下信息:

[ '0', '1', '2', '3' ]

当我登录时 Object.values(this.symptoms) 我的终端上有以下信息:

[]

这是唯一可行的方法:

        const values = [];
        for(let prop in this.symptoms){
            if(this.symptoms.hasOwnProperty(prop)){
                values.push(this.symptoms[prop])
            }
        }
        console.log(values);

这会在我的终端中记录以下内容:

[{
    date: Fri Jun 29 2018 15: 56: 48 GMT + 0200(CEST),
    name: 'Regurgitation',
    value: 1
  },
  {
    date: Fri Jun 29 2018 15: 58: 09 GMT + 0200(CEST),
    name: 'Belching',
    value: 1
  },
  {
    date: Fri Jun 29 2018 16: 10: 39 GMT + 0200(CEST),
    name: 'Heartburn',
    value: 2
  },
  {
    date: Fri Jun 29 2018 23: 30: 36 GMT + 0200(CEST),
    name: 'Heartburn',
    value: 1
  }
]

问题:

什么导致realmjs对象无法返回值数组?