如何使用JavaScript动态创建对象？

Question

我试图从字符串数组中创建一个新对象，但无法正确创建所需的对象。

我正在尝试创建一个对象，比如：

{
  "Employee1": {
    "id": "Employee1"
  },
  "Employee2": {
    "id": "Employee2"
  }
}

这是我的代码：

null

function listToItemById(qsList, key = "id") {
  const result = {};
  qsList.forEach((item) => {
    result[item][key] = item;
  });

  return result;
}

console.log(listToItemById(["Employee1", "Employee2", "Employee3", "Employee4", "Employee5", "Employee6", "Employee7", "Employee8"]));

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Answer 1

employes.reduce((obj, emp) => {
    if(typeof(obj) === "string") {
        var temp = {}
        temp[obj] = {id:obj}
        obj = temp;
    }
    obj[emp] ={id:emp};
    return obj;
})

Answer 2

是的。

首先，我们必须将result[item]设置为{}（一个新的空对象）：

null

function listToItemById(qsList, key = "id") {
  const result = {};

  qsList.forEach((item) => {
    result[item] = {};
    result[item][key] = item;
  });

  return result;
}

console.log(listToItemById(["Employee1", "Employee2", "Employee3", "Employee4", "Employee5", "Employee6", "Employee7", "Employee8"]));