js数组工具处理之合并相同字段分组

话不多说直接上码：

以下是根据time进行分组的
var tempList = [
{ userImage: ‘’, userName: ‘李测试’, userWork: ‘前端’, iPhone: ‘18516776220’, time: ‘2017-11-17’,company:”上海测试一公司”},
{ userImage: ‘’, userName: ‘刘测试’, userWork: ‘前端’, iPhone: ‘18511111111’, time: ‘2017-11-18’, company: “上海测试二公司”},
{ userImage: ‘’, userName: ‘黄一明’, userWork: ‘前端’, iPhone: ‘18588888888’, time: ‘2017-11-18’, company: “上海测试三公司”},
{ userImage: ‘’, userName: ‘黄大明’, userWork: ‘前端’, iPhone: ‘18588888888’, time: ‘2017-11-18’, company: “上海测试五公司” },
{ userImage: ‘’, userName: ‘董测试’, userWork: ‘法制特’, iPhone: ‘18522222222’, time: ‘2017-11-20’, company: “上海测试二公司”}
];

var map = {},
    dest = [];
for (var i = 0; i < tempList.length; i++) {
  var ai = tempList[i];
  if (!map[ai.time]) {
    dest.push({
      initial: ai.time,
      busInfoList: [ai]
    });
    map[ai.time] = ai;
  } else {
    for (var j = 0; j < dest.length; j++) {
      var dj = dest[j];
      if (dj.initial == ai.time) {
        dj.busInfoList.push(ai);
        break;
      }
    }
  }
}
 console.log(dest);

 本文转载： https://blog.csdn.net/jimolangyaleng/article/details/78593873