如何使用 Javascript/jquery 对 JSON 数据进行分组

How to group JSON data using Javascript/jquery?

本文关键字：数据 JSON 何使用 Javascript jquery      更新时间：2023-09-26

我有JSON数据：

{"A1":"3","A2":"34","B1":"23","B2":"23","C1":"234","C2":"43",...}

我想这样分组或重组它

var dataJson1 = {
 "A":{"A1":"3","A2":34}, 
 "B":{"B1":"23","B2":"23"}, 
 ...
}

和

var dataJson2 = {
 "0":{"A1":"3", "B1":"23", ...}, 
 "1":{"A2":"34", "B2":"23", ...}
}

如何对 json 数据进行分组？

只需迭代您的输入对象并构建其他对象：

var all = {
  "A1": "3",
  "A2": "34",
  "B1": "23",
  "B2": "23",
  "C1": "234",
  "C2": "43"
};
var dataJson1 = {};
var dataJson2 = {};
for (var k in all) {
  // data json 1
  var c = dataJson1[k[0]] = dataJson1[k[0]] || {};
  c[k] = all[k];
  // data json 2
  c = dataJson2[k[1] - 1] = dataJson2[k[1] - 1] || {};
  c[k] = all[k];
}
alert("JSON1: " + JSON.stringify(dataJson1));
alert("JSON2: " + JSON.stringify(dataJson2));

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