已解決-使用Javascript從同一行（或類似內容）中的另一個值中查找值。(JSON)

所以我對 Javascript 還是很陌生，所以我真的不知道這叫什么，反正我想從一個數字中得到“正確的答案”。我嘗試了很多東西并嘗試查找教程，但我找不到它。

這是 JSON 的示例：

{
  "questions": [
    {
      "number": 3,
      "question": "?? ? ?? = ?",
      "answers": [
        "??sunflower",
        "BIRTHDAY",
        "iPhone",
        "MOON CAKE"
      ],
      "correctAnswers": [
        "??sunflower"
      ],
      "random": true,
      "timeLimit": "24"
    },
    {
      "number": 1,
      "question": "?? ? ?? =? ",
      "answers": [
        "STAR FISH",
        "iPhone",
        "MOON CAKE",
        "HOT DOG"
      ],
      "correctAnswers": [
        "STAR FISH"
      ],
      "random": true,
      "timeLimit": "20"
    },
    {
      "number": 7,
      "question": "?? ? ? = ",
      "answers": [
        "SUNGLASSES",
        "SUNFLOWER",
        "HOUSEPAINT",
        "IPHONE"
      ],
      "correctAnswers": [
        "IPHONE"
      ],
      "random": true,
      "timeLimit": 15
    },
  ]
}

我試圖找到“數字”：1，或“問題”中的亂數，然后從該數字中找到“正確答案”。感謝任何幫助，我也在使用純 JS。

uj5u.com熱心網友回復：

const array = {
  "questions": [
    {
      "number": 3,
      "question": "?? ? ?? = ?",
      "answers": [
        "??sunflower",
        "BIRTHDAY",
        "iPhone",
        "MOON CAKE"
      ],
      "correctAnswers": [
        "??sunflower"
      ],
      "random": true,
      "timeLimit": "24"
    },
    {
      "number": 1,
      "question": "?? ? ?? =? ",
      "answers": [
        "STAR FISH",
        "iPhone",
        "MOON CAKE",
        "HOT DOG"
      ],
      "correctAnswers": [
        "STAR FISH"
      ],
      "random": true,
      "timeLimit": "20"
    },
    {
      "number": 7,
      "question": "?? ? ? = ",
      "answers": [
        "SUNGLASSES",
        "SUNFLOWER",
        "HOUSEPAINT",
        "IPHONE"
      ],
      "correctAnswers": [
        "IPHONE"
      ],
      "random": true,
      "timeLimit": 15
    },
  ]
};

const { questions } = array;

// Find by number
const correctAnswersByNumber = qNumber => {
  const q = questions.find(({ number }) => number === qNumber);
  if (!q) {
    return false;
  }

  return q.correctAnswers;
};
console.log(correctAnswersByNumber(3)); // Question by number === 3

// Random question
const randomCorrectAnswers = questions[Math.floor(Math.random() * questions.length)].correctAnswers;
console.log(randomCorrectAnswers);

uj5u.com熱心網友回復：

使用隨機選擇一個隨機問題。然后顯示正確的屬性。

var data = {
  "questions": [
    {
      "number": 3,
      "question": "?? ? ?? = ?",
      "answers": [
        "??sunflower",
        "BIRTHDAY",
        "iPhone",
        "MOON CAKE"
      ],
      "correctAnswers": [
        "??sunflower"
      ],
      "random": true,
      "timeLimit": "24"
    },
    {
      "number": 1,
      "question": "?? ? ?? =? ",
      "answers": [
        "STAR FISH",
        "iPhone",
        "MOON CAKE",
        "HOT DOG"
      ],
      "correctAnswers": [
        "STAR FISH"
      ],
      "random": true,
      "timeLimit": "20"
    },
    {
      "number": 7,
      "question": "?? ? ? = ",
      "answers": [
        "SUNGLASSES",
        "SUNFLOWER",
        "HOUSEPAINT",
        "IPHONE"
      ],
      "correctAnswers": [
        "IPHONE"
      ],
      "random": true,
      "timeLimit": 15
    },
  ]
};


// Let's choose a random question
let question = data['questions'][Math.floor(Math.random() * data['questions'].length)];


console.log(question.question, question.correctAnswers)

標籤：javascript json

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