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javascript - 如何将javascript数组转换为特定的对象列表

问题描述

我有一个像这样的数组：

[
  { "empName": "Sushant", "departments": ["HR","DEV"] },
  { "empName": "Prashant", "departments": ["HR","MNGT"] }
];

我想将此数组转换为：

[
 { "Sushant": "HR", "Prashant":"HR" },
 { "Sushant": "DEV", "Prashant":"MNGT" }
]

我试过 for 循环和Object.values

var data =     [
      { "empName": "Sushant", "departments": ["HR","DEV"] },
      { "empName": "Prashant", "departments": ["HR","MNGT"] }
    ];

for (var i = 0; i < data.length; i++) {
    var obj = Object.values(data[i]);
    console.log(obj)
}

标签： javascript

解决方案

您可以使用 reduce 循环并在执行过程中添加到正确索引处的对象。就像是：

let arr = [{ "empName": "Sushant", "departments": ["HR","DEV"] },{ "empName": "Prashant", "departments": ["HR","MNGT"] }];

let a = arr.reduce((arr, {empName, departments}) => {
    departments.forEach((dept, i) => {
        arr[i] = Object.assign({[empName]: dept}, arr[i])
    })
    return arr
}, [])
console.log(a)

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