根据包含来自另一个数组的所有值的数组属性过滤对象数组

Question

我有一个对象数组：

const breeds=[{name: 'Golden', temperament: ['friendly', 'kind', 'smart']},{name: 'Husky', temperament: ['alert', 'loyal', 'gentle']},{name: 'Yorkshire Terrier', temperament: ['bold', 'independent', 'kind']}]

我想按选择对它们进行排序 "temperament." 假设用户同时选择了 "kind" 和 "friendly"，它应该只 return "Golden" .

我正在使用 javascript 和下划线，这是我迄今为止尝试过的方法：

 //selected is an array of selected temperaments
 //breeds is the array of objects
function filterTemperaments(selected, breeds) {
  return _.filter(breeds, function (breed) {
    if (!breed.temperament) breed.temperament = "";
    const breedList = breed.temperament;
    return breedList.includes(...selected);
  }, selected);
}

这似乎只是 returning 符合所选数组中第一个气质的品种。例如，如果选择的是 ['kind', 'loyal'] 并且品种是 {name:'Golden', temperament: ['kind', 'smelly']}，尽管不符合 "Loyal" 气质

，Golden 仍然会返回 true

这里有更好的解决方案吗？提前致谢！！

Answer 1

可以使用filter to return only those breeds which have every气质选择

const breeds=[{name: 'Golden', temperament: ['friendly', 'kind', 'smart']},{name: 'Husky', temperament: ['alert', 'loyal', 'gentle']},{name: 'Yorkshire Terrier', temperament: ['bold', 'independent', 'kind']}],
    selected = ['kind', 'friendly']

const filtered = breeds.filter(b => selected.every(s => b.temperament.includes(s)))

console.log(filtered)

Answer 2

使用 filter 和 every 可以很容易地使用它来了解您是否有任何匹配以及 return 匹配的值。

const breeds = [{
  name: 'Golden',
  temperament: ['friendly', 'kind', 'smart']
}, {
  name: 'Husky',
  temperament: ['alert', 'loyal', 'gentle']
}, {
  name: 'Yorkshire Terrier',
  temperament: ['bold', 'independent', 'kind']
}]

//selected is an array of selected temperaments
//breeds is the array of objects
function filterTemperaments(selected, breeds) {
  return breeds.filter(({ temperament }) => { //here I'm desctructuring the object only to get the temperaments.
    return selected.every(selection => temperament.indexOf(selection) !== -1)
  })

}

const result = filterTemperaments(['kind', 'friendly'], breeds);
console.log(result)

根据包含来自另一个数组的所有值的数组属性过滤对象数组

Filter an array of objects based on array property containing all values from another array

javascript

sorting

underscore.js

根据包含来自另一个数组的所有值的数组 属性 过滤对象数组

Filter an array of objects based on array property containing all values from another array

javascript

sorting

underscore.js

根据包含来自另一个数组的所有值的数组属性过滤对象数组