关于多个JSON的合并问题

Question

json

Answer 1

var s=[{"name":"tom","level":5,"hobby":"play"},{"name":"tom","level":3,"hobby":"eee"},{"name":"jack","level":7,"hobby":"play"},{"name":"jack","level":77,"hobby":"plttay"}];
sumData(s);
    function sumData(data){

var ds={};
for(var i in data){
if(ds[data[i]["name"]]==null){
ds[data[i]["name"]]=data[i];
}
else{

ds[data[i]["name"]]["level"]=ds[data[i]["name"]]["level"]+data[i]["level"];
ds[data[i]["name"]]["hobby"]=ds[data[i]["name"]]["hobby"]+","+data[i]["hobby"];
} } 
alert(JSON.stringify(ds));
var s=beanToAaary(ds);
alert(JSON.stringify(s));
return s;
}
function beanToAaary(be){
var array=[];
for (var i in be)
array.push(be[i]); return array;

}