[

    {"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"}

]

[

    {

        "id": "1001",

        "name": "值1",

        "data": [

            {"id": "1001", "name": "值1", "value": "111"},

            { "id": "1001", "name": "值1", "value": "11111"}

        ]

    },

    {

        "id": "1002",

        "name": "值2",

        "data": [

            { "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",

        "data": [

            {"id": "1003", "name": "值3", "value": "333333" }

        ]

    }

]

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]){// 这里是根据ID为条件，进行分组

        dest.push({

            id: ai.id,

            name: ai.name,

            data: [ai]

        });

        map[ai.id] = ai;// 对象key的唯一性，放到对象中

    }else{

        for(var j = 0; j < dest.length; j++){

            var dj = dest[j];

            if(dj.id == ai.id){// 对象中存在，并且两个ID相等，添加并跳出循环

                dj.data.push(ai);

                break;

            }

        }

    }

}

console.log(dest);// 返会数组