数组对象根据某个key相同合并分组

2024年5月18日 112次阅读 来源: sch695241721 

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);
    原文作者：sch695241721
    原文地址: https://blog.csdn.net/sch695241721/article/details/102507700
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