圧縮JSONオブジェクト

Question

I以下のJSONがあります

[{"state":"MN","value":10},{"state":"MN","value":10},{"state":"MN","value":10},{"state":"NY","value":8},{"state":"NY","value":8},{"state":"NY","value":8}] 

は私が次のように上記のJSONに変換することができますはJQuery/JSや他のHTML互換性のある言語での指示があると：

[{"state":"MN","value":[10,10,10]},{"state":"NY","value":[8,8,8]}] 

ありがとう！あなたに必要な出力が得られますルーピング以下

Answer 1

、

DEMO

var data = [{"state":"MN","value":10},{"state":"MN","value":10},{"state":"MN","value":10},{"state":"NY","value":8},{"state":"NY","value":8},{"state":"NY","value":8}]; 

var tmp = {}; 
var t; 
$.each (data, function (i, val) { 
    if (tmp.hasOwnProperty(val.state)) { 
     t = tmp[val.state]; 
     t.push(val.value); 
    } else { 
     tmp[val.state] = [val.value]; 
    } 
}); 

var output = []; 
for (i in tmp) { 
    output.push({'state': i, 'value': tmp[i]}); 
} 

証明：

Answer 2

はあなたが使用することができます。

var input=[{"state":"MN","value":10},{"state":"MN","value":10},{"state":"MN","value":10},{"state":"NY","value":8},{"state":"NY","value":8},{"state":"NY","value":8}] 

var tmp={}, output=[]; 
while(o=input.pop()) (tmp[o.state] || (tmp[o.state]=[])).push(o.value); //you could even stop here if it is enough for you 
for(k in tmp) output.push({state:k,value:tmp[k]});