Question

var data = {
 chart : 'rank',
 labels: [
      {
       0: 'First Choice'
       1: 'Second Choice',   
       2: 'Third Choice',
       3: 'Fourth Choice',
       4: 'Fifth Choice'
      }
 ],
rows: [
     {
      0: 2,
      1: 8,
      2: 1,
      3: 30
      4: 4
     }
      ]

   }

有没有办法重新排序结果，以便将行重新排序为从最高到最低，相应的标签也会重新排序，如下所示：

var data = {
 chart : 'rank',
 labels: [
      {
       0: 'Fourth Choice'
       1: 'Second Choice',   
       2: 'Fifth Choice',
       3: 'First Choice',
       4: 'Third Choice'
      }
 ],
rows: [
     {
      0: 30,
      1: 8,
      2: 4,
      3: 2
      4: 1
     }
      ]

   }

到目前为止，我已经设法使用以下内容对行数组进行了重新排序，但在标签方面却停滞不前了？

rows = rows.sort(function(a, b){return b-a});

Answer 1

将对象值放入数组并对其进行排序。排序后根据排序数组更新真实对象。

＆＃13;

var data = {
  chart: 'rank',
  labels: [{
    0: 'First Choice',
    1: 'Second Choice',
    2: 'Third Choice',
    3: 'Fourth Choice',
    4: 'Fifth Choice'
  }],
  rows: [{
    0: 2,
    1: 8,
    2: 1,
    3: 30,
    4: 4
  }]
};
// get object property name array
Object.keys(data.labels[0])
  // generate array with object values
  .map(function(k) {
    return [data.labels[0][k], data.rows[0][k]]
      // sort the array based on rows value in array
  }).sort(function(a, b) {
    return b[1] - a[1];
    // iterate and update real object
  }).forEach(function(v, i) {
    data.labels[0][i] = v[0];
    data.rows[0][i] = v[1];
  });

console.log(data);

＆＃13;

在json对象中重新排序数组

1 个答案: