javascript - 解构嵌套对象 es6

Question

你还好吗？我想从嵌套对象中删除一个属性(“isCorrect”)。

原始列表

    id: 1,
    questionText: 'This is a test question for tests',
    answerOptions: [
      {
        answerText: 'A',
        isCorrect: true
      },
      {
        answerText: 'B',
        isCorrect: false
      }
    ],
    difficulty: 1
  },
  {
    id: 2,
    questionText: 'This is another test question for tests',
    answerOptions: [
      {
        answerText: 'A',
        isCorrect: false
      },
      {
        answerText: 'B',
        isCorrect: true
      }
    ],
    difficulty: 2
  }

预期结果

    id: 1,
    questionText: 'This is a test question for tests',
    answerOptions: [
      {
        answerText: 'A'
      },
      {
        answerText: 'B'
      }
    ],
    difficulty: 1
  },
  {
    id: 2,
    questionText: 'This is another test question for tests',
    answerOptions: [
      {
        answerText: 'A'
      },
      {
        answerText: 'B'
      }
    ],
    difficulty: 2
  }

我设法使用下面的删除代码，但这不是最好的方法

const cleanResponses = (questions: Question[]): Question[] => {
  questions.forEach(question => {
    question.answerOptions.forEach((answer) => {
      delete answer.isCorrect
    });
  })

  return questions;
}

试过下面的行但没有成功:(

const { answerOptions: [{ isCorrect }], ...rest } = 问题

谢谢

Answer 1

使用 Array#map :

const arr = [
  { id: 1,
    questionText: 'This is a test question for tests',
    answerOptions: [ { answerText: 'A', isCorrect: true }, { answerText: 'B', isCorrect: false } ],
    difficulty: 1
  },
  {
    id: 2,
    questionText: 'This is another test question for tests',
    answerOptions: [ { answerText: 'A', isCorrect: false }, { answerText: 'B', isCorrect: true } ],
    difficulty: 2
  }
];

const res = arr.map(({ answerOptions = [], ...elem }) => ({
  ...elem, 
  answerOptions: answerOptions.map(({ isCorrect, ...answer }) => answer)
}));

console.log(res);