js把name和key相同的把value相加组成新的json对象，其余的保留 。感谢！

Question

var arr1 = [
{name: "萧何", key: "屌丝", value: 52},
{name: "萧何", key: "屌丝", value: 22},
{name: "张良", key: "高富帅", value: 52},
{name: "韩信", key: "纯屌丝", value: 66},
{name: "韩信", key: "纯屌丝", value: 61},
{name: "刘邦", key: "屌丝", value: 55},
...
];

//结果
var arr2 = [
{name: "萧何", key: "屌丝", value: 74},
{name: "张良", key: "高富帅", value: 52},
{name: "韩信", key: "纯屌丝", value: 127},
{name: "刘邦", key: "屌丝", value: 55},
...
]

Answer 1

<script type="text/javascript">
var arr = [
{name: "萧何", key: "屌丝", value: 52},
{name: "萧何", key: "屌丝", value: 22},
{name: "张良", key: "高富帅", value: 52},
{name: "韩信", key: "纯屌丝", value: 66},
{name: "韩信", key: "纯屌丝", value: 61},
{name: "刘邦", key: "屌丝", value: 55},
];
function test(arr) {
    var newarray = [];
    var checkarray=[];
    arr.forEach(function(value,keyindex){
        if(newarray.length==0){
            newarray.push(value);
            checkarray.push(value.name);//根据name去重判断
        }else{
            newarray.forEach(function(valueIndex,keyindex){
                if(valueIndex.name==value.name&&valueIndex.key==value.key){
                    valueIndex.value+=value.value;
                }else if($.inArray(value.name,checkarray)==-1){
                //避免相同name数据重复
                    newarray.push(value);
                    checkarray.push(value.name);
                    $.unique(newarray);
                    $.unique(checkarray);

                }
            })          
        }


    })
    return newarray;
}
console.log(test(arr))

</script>