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javascript - 按属性值对对象的对象进行排序（通过元组传递）

问题描述

我有这个对象：

const data = {
  FR: {total: 875, min: 4, cutValue: 56},
  DE: {total: 478, min: 50, cutValue: 5},
  UK: {total: 1505, min: 0, cutValue: 0},
  PO: {total: 2995, min: 0, cutValue: 4},
  IT: {total: 1840, min: 10, cutValue: 3},
  ES: {total: 629, min: 30, cutValue: 33},
}

total我想将它转换为按值排序的元组数组。所以结果应该是：

[
  ['PO', {total: 2995, min: 0, cutValue: 4}],
  ['IT', {total: 1840, min: 10, cutValue: 3}],
  ['UK', {total: 1505, min: 0, cutValue: 0}],
  ['FR', {total: 875, min: 4, cutValue: 56}],
  ['ES', {total: 629, min: 30, cutValue: 33}],
  ['DE', {total: 478, min: 50, cutValue: 5}],
]

因为价值PO最高total。

所以我可以使用toPairsLodash 来创建元组数组，但是如何按total值对它们进行排序呢？

标签： javascript

解决方案

您可以使用.sortBy：

const data = {
  FR: {total: 875, min: 4, cutValue: 56},
  DE: {total: 478, min: 50, cutValue: 5},
  UK: {total: 1505, min: 0, cutValue: 0},
  PO: {total: 2995, min: 0, cutValue: 4},
  IT: {total: 1840, min: 10, cutValue: 3},
  ES: {total: 629, min: 30, cutValue: 33},
};

const sorted = _.sortBy(_.toPairs(data), ([, { total }]) => -total);

console.log(sorted);
<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.21/lodash.min.js"></script>

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