js根据json数据中的某一个属性来给数据分组的方法

2019-11-19 12:46:05

字体：大中小

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如下所示：

<!DOCTYPE html><html>	<head>		<meta charset="UTF-8">		<title></title>	</head>	<body>		<span id ="span" style="width: 50px;height: 200px;"></span>	</body>	<script>	var arr = [{"Group":1,"Groupheader":"质量管理","Leftimg":"","Left":"","Min":"","Right":"","Rightimg":""},{"Group":1,"Groupheader":"","Leftimg":"","Left":"","Min":"质量巡检","Right":"","Rightimg":""},{"Group":2,"Groupheader":"设备管理","Leftimg":"","Left":"","Min":"","Right":"","Rightimg":""},{"Group":2,"Groupheader":"","Leftimg":"","Left":"","Min":"设备专业点检","Right":"","Rightimg":""},{"Group":2,"Groupheader":"","Leftimg":"","Left":"","Min":"设备日检","Right":"","Rightimg":""},{"Group":2,"Groupheader":"","Leftimg":"","Left":"","Min":"设备周检","Right":"","Rightimg":""},{"Group":2,"Groupheader":"","Leftimg":"","Left":"","Min":"设备月检","Right":"","Rightimg":""}]; var map = {}, dest = [];for(var i = 0; i < arr.length; i++){ var ai = arr[i]; if(!map[ai.Group]){  dest.push({   Group: ai.Group,     data: [ai]  });  map[ai.Group] = ai; }else{  for(var j = 0; j < dest.length; j++){   var dj = dest[j];   if(dj.Group == ai.Group){    dj.data.push(ai);    break;   }  } }}console.log(JSON.stringify(dest));	var sapn = document.getElementById("span");	span.innerHTML = JSON.stringify(dest);	</script></html>

原始数据：

[{"Group":1,"Groupheader":"质量管理","Leftimg":"","Left":"","Min":"","Right":"","Rightimg":""},{"Group":1,"Groupheader":"","Leftimg":"","Left":"","Min":"质量巡检","Right":"","Rightimg":""},{"Group":2,"Groupheader":"设备管理","Leftimg":"","Left":"","Min":"","Right":"","Rightimg":""},{"Group":2,"Groupheader":"","Leftimg":"","Left":"","Min":"设备专业点检","Right":"","Rightimg":""},{"Group":2,"Groupheader":"","Leftimg":"","Left":"","Min":"设备日检","Right":"","Rightimg":""},{"Group":2,"Groupheader":"","Leftimg":"","Left":"","Min":"设备周检","Right":"","Rightimg":""},{"Group":2,"Groupheader":"","Leftimg":"","Left":"","Min":"设备月检","Right":"","Rightimg":""}];

处理后的数据：

[ {  "Group": 1,  "data": [   {    "Group": 1,    "Groupheader": "质量管理",    "Leftimg": "",    "Left": "",    "Min": "",    "Right": "",    "Rightimg": ""   },   {    "Group": 1,    "Groupheader": "",    "Leftimg": "",    "Left": "",    "Min": "质量巡检",    "Right": "",    "Rightimg": ""   }  ] }, {  "Group": 2,  "data": [   {    "Group": 2,    "Groupheader": "设备管理",    "Leftimg": "",    "Left": "",    "Min": "",    "Right": "",    "Rightimg": ""   },   {    "Group": 2,    "Groupheader": "",    "Leftimg": "",    "Left": "",    "Min": "设备专业点检",    "Right": "",    "Rightimg": ""   },   {    "Group": 2,    "Groupheader": "",    "Leftimg": "",    "Left": "",    "Min": "设备日检",    "Right": "",    "Rightimg": ""   },   {    "Group": 2,    "Groupheader": "",    "Leftimg": "",    "Left": "",    "Min": "设备周检",    "Right": "",    "Rightimg": ""   },   {    "Group": 2,    "Groupheader": "",    "Leftimg": "",    "Left": "",    "Min": "设备月检",    "Right": "",    "Rightimg": ""   }  ] }]

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