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js根据json数据中的某一个属性来给数据分组

2017-01-10 15:28 295 查看 
<!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": [
{
a6ae

"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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