將對象數組轉換為鍵值對，其中一個值作為鍵

Question

我有一個這樣的對象數組：

  const arr = [
{
  question_Number: 205,
  question_Text: "Enter Engine Number",
},
{
  question_Number: 497,
  question_Text: "Whether imported?",
},
{
  question_Number: 547,
  question_Text: "Whether goods are new?",
},
{
  question_Number: 206,
  question_Text: "Select Vehicle Condition",
},

];

我想將其轉換為鍵/值對的 object，如下所示：

  const result = {
205: {
  type: "string",
  title: "Enter Engine Number",
},
497: {
  type: "string",
  title: "Whether imported?",
},
547: {
  type: "string",
  title: "Whether imported goods are new?",
},
206: {
  type: "string",
  title: "Select Vehicle Condition",
},

};

如何使用普通的 javascript 甚至 lodash 來實現這個結果？

謝謝。

Answer 1

您可以使用新對象進行 map 條目。

 const data = [{ question_Number: 205, question_Text: "Enter Engine Number" }, { question_Number: 497, question_Text: "Whether imported?" }, { question_Number: 547, question_Text: "Whether goods are new?" }, { question_Number: 206, question_Text: "Select Vehicle Condition" }], result = Object.fromEntries(data.map(({ question_Number, question_Text: title }) => [question_Number, { type: 'string', title }])); console.log(result);

 .as-console-wrapper { max-height: 100%;important: top; 0; }

Answer 2

你可以用內置的東西來做到這一點，但我認為這會更容易理解，看看發生了什么，真的很快：

 const input = [ { question_Number: 205, question_Text: "Enter Engine Number", }, { question_Number: 497, question_Text: "Whether imported?", }, { question_Number: 547, question_Text: "Whether goods are new?", }, { question_Number: 206, question_Text: "Select Vehicle Condition", } ] const transformArray = (arr) => { let result = {} for (let i = 0; i < arr.length; i++) { result[arr[i].question_Number] = { type: typeof arr[i].question_Text, title: arr[i].question_Text } } return result } console.log(transformArray(input))