按属性值按特定顺序对数组对象进行排序

问题描述：

我有一个对象数组，我想使用每个对象的属性值与相应值的有序列表进行比较.

I have an array of objects that I'd like to sort using each object's property value compared against an ordered list of corresponding values.

比方说，我有这个字符串数组；食物组:

Let's say I have this array of strings; food groups:

[ 'protein',
  'dairy',
  'fruit',
  'vegetable' ]

我还有一系列对象，食物，每个对象都属于属性group属于以前的食物组之一:

And I also have an array of objects, food items, each belonging to one of the former food groups by the property group:

[
  { group: 'vegetable', name: 'broccoli' },
  { group: 'protein', name: 'beef' },
  { group: 'fruit', name: 'apple' },
  { group: 'vegetable', name: 'peas' },
  { group: 'dairy', name: 'cheese' },
  { group: 'protein', name: 'tofu' },
  { group: 'vegetable', name: 'bell pepper' },
  { group: 'dairy', name: 'milk' },
  { group: 'fruit', name: 'grapes' },
  { group: 'protein', name: 'chicken' },
]

给出第一个数组中食物组的顺序，如何使用食物的对象group属性对食物进行排序，从而得出结果:

Given the order of the food groups in the first array, how can I sort the food items using their object group properties, to result in this:

[
  { group: 'protein', name: 'beef' },
  { group: 'protein', name: 'tofu' },
  { group: 'protein', name: 'chicken' },
  { group: 'dairy', name: 'cheese' },
  { group: 'dairy', name: 'milk' },
  { group: 'fruit', name: 'apple' },
  { group: 'fruit', name: 'grapes' },
  { group: 'vegetable', name: 'broccoli' },
  { group: 'vegetable', name: 'peas' },
  { group: 'vegetable', name: 'bell pepper' },
]

虽然我使用Javascript进行编码，但是我确信这在几种语言中或多或少都是相同的.

While I'm doing this in Javascript, I'm sure this would be more or less the same across a few languages.

任何帮助将不胜感激！

答

您可以使用forEach& filter数组方法.遍历food groups&对于每个元素，请从group中过滤出匹配的元素，&存储在新数组中

You can use forEach & filter array method. Iterate over the food groups & for each element filter out the matched element from the group, & store in a new array

var order = ['protein',
  'dairy',
  'fruit',
  'vegetable'
]

var orgArry = [{
    group: 'vegetable',
    name: 'broccoli'
  },
  {
    group: 'protein',
    name: 'beef'
  },
  {
    group: 'fruit',
    name: 'apple'
  },
  {
    group: 'vegetable',
    name: 'peas'
  },
  {
    group: 'dairy',
    name: 'cheese'
  },
  {
    group: 'protein',
    name: 'tofu'
  },
  {
    group: 'vegetable',
    name: 'bell pepper'
  },
  {
    group: 'dairy',
    name: 'milk'
  },
  {
    group: 'fruit',
    name: 'grapes'
  },
  {
    group: 'protein',
    name: 'chicken'
  },
];
var newArray = [];
order.forEach(function(item) {
  return orgArry.filter(function(groupName) {
    if (groupName.group === item) {
      newArray.push(groupName)
    }
  })
});

console.log(newArray)

按属性值按特定顺序对数组对象进行排序

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