举例

var arr = [
{"id":"1001","name":"值1","value":"111"},
{"id":"1001","name":"值1","value":"11111"},
{"id":"1002","name":"值2","value":"25462"},
{"id":"1002","name":"值2","value":"23131"},
{"id":"1002","name":"值2","value":"2315432"},
{"id":"1003","name":"值3","value":"333333"}
];
var map = {},
dest = [];
for(var i = 0; i < arr.length; i++){
var ai = arr[i];
if(!map[ai.id]){
dest.push({
id: ai.id,
name: ai.name,
data: [ai]
});
map[ai.id] = ai;
}else{
for(var j = 0; j < dest.length; j++){
var dj = dest[j];
if(dj.id == ai.id){
dj.data.push(ai);
break;
}
}
}
}
console.log(dest);
案例
function getgroupdetail(clsid,groupid,type,callback){
var data ={};
data.clsid = clsid;
data.groupid = groupid;
var htmlss = '';
var id11 = layer.load(2,{shade: [0.3,'#fff']});
$.post('/shared/profile/getgroupdetail',data, function (res){
if(res.success){
var map = {},dest = [];
for(var i = 0; i <res.data.length; i++){
var ai = res.data[i];
if(!map[ai.groupid]){
dest.push({
groupid: ai.groupid,
groupname: ai.groupname,
data: [ai]
});
map[ai.groupid] = ai;
}else{
for(var j = 0; j < dest.length; j++){
var dj = dest[j];
if(dj.groupid== ai.groupid){
dj.data.push(ai);
break;
}
}
}
}
}
});
}