是否有任何方法从对象数组中筛选对象，这些对象数组应包括javascript中所有选定的值。

Question

在这里，我有技能数组和员工数组，我试图获得员工，包括技能数组中包含的所有技能，使用减少、筛选或查找方法。我正试图将过滤过的员工存储在filteredItems中，但被卡在里面了。

filteredItems = Skills?.length>0   ?             
Employees?.filter((item) => {
return     item.Skills.find((ele) => {
                  return Skills.find((el) => {
                    if(el.value === ele.id){
                       return ele
                    }
                  })
            })
          }) : []

下面是所提到的数组。

技能阵列

[
{
    "value": 6,
    "label": "Marketing"
},
{
    "value": 20,
    "label": "Golang"
}
]

员工阵列

[
{
    "name": "Hassan",
    "id": 56,
    "Skills": [
        {
            "id": 20,
            "name": "Golang",
        },
    ],
},
 {
    "name": "Haroon",
    "id": 95,
    "Skills": [
        {
            "id": 6,
            "name": "Marketing",
        },
        {
            "id": 20,
            "name": "Golang",
        },
    ],
},
]

例如，在上面的数组场景中，它应该返回id为95的雇员，而不是id 56的雇员，因为它包含技能，但不是技能数组中提到的所有技能。

Answer 1

我发现，首先封装要搜索的技能ID数组比较容易。

let skillIds = Skills.map(s => s.value);

然后，我过滤并将最终结果与技能Ids数组的长度进行比较：

let filteredItems = Skills?.length > 0 ?
  Employees?.filter(item => item.Skills.filter( s =>
      skillIds.includes(s.id)).length==skillIds.length): []

​

let Skills = [{
  "value": 6,
  "label": "Marketing"
}, {
  "value": 20,
  "label": "Golang"
}]
let Employees = [{
  "name": "Hassan",
  "id": 56,
  "Skills": [{
    "id": 20,
    "name": "Golang",
  }],
}, {
  "name": "Haroon",
  "id": 95,
  "Skills": [{
      "id": 6,
      "name": "Marketing",
    },
    {
      "id": 20,
      "name": "Golang",
    },
  ],
}, ]

let skillIds = Skills.map(s => s.value);

let filteredItems = Skills?.length > 0 ?
  Employees?.filter(item => item.Skills.filter( s => skillIds.includes(s.id)).length==skillIds.length): []

console.log(filteredItems)

​

Answer 2

您可以在employees数组中创建另一个属性。叫它"QUalified“。默认为true，然后当员工在技能数组中没有技能时，将其设置为false。

​

let arSkills = [
{
    "value": 6,
    "label": "Marketing"
},
{
    "value": 20,
    "label": "Golang"
}
];

let arEmp = [
{
    "name": "Hassan",
    "id": 56,
    "Skills": [
        {
            "id": 20,
            "name": "Golang",
        },
    ],
},
 {
    "name": "Haroon",
    "id": 95,
    "Skills": [
        {
            "id": 6,
            "name": "Marketing",
        },
        {
            "id": 20,
            "name": "Golang",
        },
    ],
},
];

arEmp.forEach(ele =>{
    ele.Qualified = true;
  let arTmp = [];
  
  for(let {id} of ele.Skills)
    arTmp.push(id)
  
  for(let {value} of arSkills)
    if(!arTmp.includes(value))
        ele.Qualified = false
});

let arQual = arEmp.filter((ele) =>{
    return ele.Qualified
});

console.log(arQual);

​