Question

我需要将以下JSON文件的格式转换为我在下面给出的格式。

{
  "rank":["1","2","3","4","5"],
  "user":["DanSPT","Tommer","Adam","Ben","Reed"],
  "speed":["180kmh", "200kmh", "190kmh" ,"230kmh" ,"300kmh"],
  "awards":["520", "314" ,"236", "212" ,"201"],
  "carColor":["Red", "Blue", "Green", "Yellow", "Pink"]
}

到

  { rank: "1", user: "DanSPT", speed: "180kmh", awards: " 520 ", carColor: "Red" },
  { rank: "2", user: "Tommer", speed: "200kmh", awards: " 314 ", carColor: "Blue" },
  { rank: "3", user: "Adam", speed: "190kmh", awards: " 236 ", carColor: "Green" },
  { rank: "4", user: "Ben", speed: "230kmh", awards: " 212 ", carColor:"Yellow" },
  { rank: "5", user: "Reed", speed: "300kmh", awards: " 201 ", carColor:"Pink" }

Answer 1

您可以使用一个对象，并将键作为键，并将数组的值作为值，并按相同的索引分组。

var data = { rank: ["1", "2", "3", "4", "5"], user: ["DanSPT", "Tommer", "Adam", "Ben", "Reed"], speed: ["180kmh", "200kmh", "190kmh", "230kmh", "300kmh"], awards: ["520", "314", "236", "212", "201"], carColor: ["Red", "Blue", "Green", "Yellow", "Pink"] },
    result = Object
        .entries(data)
        .reduce((r, [k, a]) => a.map((v, i) => Object.assign(r[i] || {}, { [k]: v })), []);

console.log(result);

Answer 2

一种可能的解决方案是使用两个嵌套的for循环。您可以使用for ... in循环遍历主输入对象，并使用标准for statement遍历存储在对象内部的数组。

const input = {
  "rank": ["1", "2", "3", "4", "5"],
  "user": ["DanSPT", "Tommer", "Adam", "Ben", "Reed"],
  "speed": ["180kmh", "200kmh", "190kmh" ,"230kmh" ,"300kmh"],
  "awards": ["520", "314" ,"236", "212" ,"201"],
  "carColor": ["Red", "Blue", "Green", "Yellow", "Pink"]
};

const output = [];

for (const key in input)
{
    // Continue to next iteration if key don't hold an array.

    if (!Array.isArray(input[key]))
        continue;

    // Store the array data on the "output".

    for (let i = 0; i < input[key].length; i++)
    {
        output[i] = output[i] || {};
        output[i][key] = input[key][i];
    }
}

console.log(output);

.as-console {background-color:black !important; color:lime;}
.as-console-wrapper {max-height:100% !important; top:0;}

如何将Json文件的格式转换为另一种格式？

2 个答案: