javascript - lodash 的对象顺序

Question

我想按 PERIOD 属性对此对象进行排序。

由于对象和数组在一起，我很困惑，有人有什么想法吗？

我的代码

const obj = 
{
  "1": [
    {
      "attributes": {
        "Period": 2000,
        "name": "AP 1"
      }
    },
    {
      "attributes": {
        "Period": 1991,
        "name": "AP 2"
      }
    }
  ],
  "2": [
    {
      "attributes": {
        "Period": 1991,
        "name": "AP 3"
      }
    },
    {
      "attributes": {
        "Period": 2000,
        "name": "AP 4"
      }
    }
  ]
}

_.orderBy(obj, ['Period'], ['asc']);

console.log(obj)

<script src="https://cdn.jsdelivr.net/npm/lodash@4.17.4/lodash.min.js"></script>

返回结构必须与输入结构相同。您不需要丢失属性名称，只需丢失句点

我的预期代码

{
  "1": [
    {
      "attributes": {
        "Period": 1991,
        "name": "AP 2"
      }
    },
    {
      "attributes": {
        "Period": 2000,
        "name": "AP 1"
      }
    }
  ],
  "2": [
    {
      "attributes": {
        "Period": 2000,
        "name": "AP 4"
      }
    },
    {
      "attributes": {
        "Period": 1991,
        "name": "AP 3"
      }
    }
  ]
}

我使用的lodash版本:4.17.4

Answer 1

我认为这就是您正在寻找的:

var obj = 
{
  "1": [
    {
      "attributes": {
        "Period": 2000,
        "name": "AP 1"
      }
    },
    {
      "attributes": {
        "Period": 1991,
        "name": "AP 2"
      }
    }
  ],
  "2": [
    {
      "attributes": {
        "Period": 2000,
        "name": "AP 3"
      }
    },
    {
      "attributes": {
        "Period": 1991,
        "name": "AP 4"
      }
    }
  ]
}
 
obj = _.mapValues(obj, function(inner){
   return _.orderBy(inner, ['attributes.Period'], ['dsc']);
});

console.log(obj)

<script src="https://cdn.jsdelivr.net/npm/lodash@4.17.4/lodash.min.js"></script>