如何转换对象数组？

问题描述：

我有问题。

我有该对象数组：

const iHaveThis = [{
    question: "What's your name?",
    answer: 'dda',
    form_filled_key: 15,
  },
  {
    question: "What's your e-mail?",
    answer: 'sda@br.com',
    form_filled_key: 15,
  },
  {
    question: "What's your e-mail?",
    answer: 'dAS@be.bimc',
    form_filled_key: 14,
  },
  {
    question: "What's your name?",
    answer: 'DAS',
    form_filled_key: 14,
  },
];

我想将其转换为：

const iWillHaveThis = [{
    "What's your e-mail?": 'sda@br.com',
    "What's your name?": 'dda',
  },

  {
    "What's your e-mail?": 'dAS@be.bimc',
    "What's your name?": 'DAS',
  },
];

我该怎么做？请

我已经尝试使用reduce，map，但无法正常工作。

I already tried use reduce, map but not working.

答

您可以创建一个键为 form_filled_key 的对象。并在循环中使用键将对象添加到对象中以对它们进行分组。最后，您的解决方案将在所构建对象的 Object.values（）中：

You can make an object keyed to your form_filled_key. And in a loop add objects to the object using the key to group them. In the end, your solution will be in the Object.values() of the object you built:

const iHaveThat = [
  {question: "What's your name?",answer: 'dda',form_filled_key: 15,},
  {question: "What's your e-mail?",answer: 'sda@br.com',form_filled_key: 15,},
  {question: "What's your e-mail?",answer: 'dAS@be.bimc',form_filled_key: 14,},
  {question: "What's your name?",answer: 'DAS',form_filled_key: 14,},];

let arr = iHaveThat.reduce((obj, {form_filled_key, question, answer}) => {

    // make a new entry if needed
    if (!obj[form_filled_key]) obj[form_filled_key] = {}

    // add the key value pair
    obj[form_filled_key][question] = answer

    return obj
},{})

// you just want the array from `values()`
let result = Object.values(arr)
console.log(result)

如何转换对象数组？

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