javascript - JSON数据从表格格式转换为JSON？

Question

我有以下格式的数据:

{
  "columns": [
    {
      "values": [
        {
          "data": [
            "Project Name",
            "Owner",
            "Creation Date",
            "Completed Tasks"
          ]
        }
      ]
    }
  ],
  "rows": [
    {
      "values": [
        {
          "data": [
            "My Project 1",
            "Franklin",
            "7/1/2015",
            "387"
          ]
        }
      ]
    },
    {
      "values": [
        {
          "data": [
            "My Project 2",
            "Beth",
            "7/12/2015",
            "402"
          ]
        }
      ]
    }
  ]
}

有没有一些超短/简单的方法可以像这样格式化它:

{
  "projects": [
    {
      "projectName": "My Project 1",
      "owner": "Franklin",
      "creationDate": "7/1/2015",
      "completedTasks": "387"
    },
    {
      "projectName": "My Project 2",
      "owner": "Beth",
      "creationDate": "7/12/2015",
      "completedTasks": "402"
    }
  ]
}

我已经得到了列名翻译代码:

r = s.replace(/\%/g, 'Perc')
.replace(/^[0-9A-Z]/g, function (x) {
  return x.toLowerCase();
}).replace(/[\(\)\s]/g, '');

在我用一堆 forEach 循环深入研究这个问题之前，我想知道是否有一种 super 快速的方法来转换它。我愿意使用 Underscore 等库。

Answer 1

function translate(str) {
    return str.replace(/\%/g, 'Perc')
        .replace(/^[0-9A-Z]/g, function (x) {
            return x.toLowerCase();
        })
        .replace(/[\(\)\s]/g, '');
}

function newFormat(obj) {

    // grab the column names
    var colNames = obj.columns[0].values[0].data;

    // create a new temporary array
    var out = [];
    var rows = obj.rows;

    // loop over the rows
    rows.forEach(function (row) {
        var record = row.values[0].data;

        // create a new object, loop over the existing array elements
        // and add them to the object using the column names as keys
        var newRec = {};
        for (var i = 0, l = record.length; i < l; i++) {
            newRec[translate(colNames[i])] = record[i];
        }

        // push the new object to the array
        out.push(newRec);
    });

    // return the final object
    return { projects: out };
}

DEMO