在json中合併並統計相同日期或重複

Question

我想結合並計算日期。所有日期都在UTC時區，我首先使用toLocaleDateString（）將所有UTC時間轉換爲本地時間，然後將該日期作爲JSON對象的關鍵字，但不會按預期得到結果。

我的JSON格式：

[{"UploadTimeStamp":"2017-02-18T09:01:43.060Z"}, 
{"UploadTimeStamp":"2017-02-19T04:09:43.347Z"}, 
{"UploadTimeStamp":"2017-02-21T14:38:40.157Z"}, 
{"UploadTimeStamp":"2017-02-22T11:30:58.546Z"}, 
{"UploadTimeStamp":"2017-02-22T11:31:35.514Z"}, 
{"DoneTimeStamp":"2017-02-19T03:54:34.791Z"}, 
{"DoneTimeStamp":"2017-02-19T17:48:40.041Z"}, 
{"DoneTimeStamp":"2017-02-21T14:55:33.335Z"}, 
{"DoneTimeStamp":"2017-02-17T15:01:32.426Z"}] 

結果：

{"18/02/2017":{"Upload":1}, 
"19/02/2017":{"Upload":1}, 
"21/02/2017":{"Upload":1}, 
"22/02/2017":{"Upload":"[object Object]1","Done":"[object Object]1"}, 
"17/02/2017":{"Done":1}} 

我的代碼：

for (var i = 0; i < result.length; i++) { 

       if (result[i].UploadTimeStamp) { 

        var value = new Date(result[i].UploadTimeStamp).toLocaleDateString(); 
        //increment counter for this value (starting at 1) 
        var count = (temp[value] || 0) + 1; 

        if (temp[value] === undefined) { 

         temp[value] = {} 
         temp[value].Upload = count; 

        } 
        else { 

         temp[value].Upload = count; 

        } 
       } 
       else { 

        var value = new Date(result[i].DoneTimeStamp).toLocaleDateString(); 
        //increment counter for this value (starting at 1) 
        var count = (temp[value] || 0) + 1; 

        if (temp[value] === undefined) { 

         temp[value] = {} 
         temp[value].Done = count; 

        } 
        else { 

         temp[value].Done = count; 

        }  
       } 

      } 

      console.log(JSON.stringify(temp)) 

我的預期結果

{"18/02/2017":{"Upload":1,"Done":0}, 
"19/02/2017":{"Upload":1,"Done":2}, 
"21/02/2017":{"Upload":1,"Done":1}, 
"22/02/2017":{"Upload":1,"Done":1}, 
"17/02/2017":{"Done":1,"Upload":0}} 

預先感謝您

Answer 1

var data = [{"UploadTimeStamp":"2017-02-18T09:01:43.060Z"}, 
 
{"UploadTimeStamp":"2017-02-19T04:09:43.347Z"}, 
 
{"UploadTimeStamp":"2017-02-21T14:38:40.157Z"}, 
 
{"UploadTimeStamp":"2017-02-22T11:30:58.546Z"}, 
 
{"UploadTimeStamp":"2017-02-22T11:31:35.514Z"}, 
 
{"DoneTimeStamp":"2017-02-19T03:54:34.791Z"}, 
 
{"DoneTimeStamp":"2017-02-19T17:48:40.041Z"}, 
 
{"DoneTimeStamp":"2017-02-21T14:55:33.335Z"}, 
 
{"DoneTimeStamp":"2017-02-17T15:01:32.426Z"}]; 
 
var tmp = {}; 
 

 
data.forEach(function(d){ 
 
    let key = Object.keys(d)[0];  
 
    let value = new Date(d[key]).toLocaleDateString(); 
 
    key === "UploadTimeStamp" ? key = "upload": key = "done"; 
 
    tmp[value] = tmp[value] || {}; 
 
    tmp[value].upload = tmp[value].upload || 0; 
 
    tmp[value].done = tmp[value].done || 0; 
 
    tmp[value][key] += 1; 
 
}); 
 

 
console.log(tmp);

Answer 2

你沒有檢查，如果.Done或.Upload是不確定的，但是對於整個約會對象。檢查設置var count的行。

var result = [{"UploadTimeStamp":"2017-02-18T09:01:43.060Z"}, 
{"UploadTimeStamp":"2017-02-19T04:09:43.347Z"}, 
{"UploadTimeStamp":"2017-02-21T14:38:40.157Z"}, 
{"UploadTimeStamp":"2017-02-22T11:30:58.546Z"}, 
{"UploadTimeStamp":"2017-02-22T11:31:35.514Z"}, 
{"DoneTimeStamp":"2017-02-19T03:54:34.791Z"}, 
{"DoneTimeStamp":"2017-02-19T17:48:40.041Z"}, 
{"DoneTimeStamp":"2017-02-21T14:55:33.335Z"}, 
{"DoneTimeStamp":"2017-02-17T15:01:32.426Z"}]; 

var temp = {} 
for (var i = 0; i < result.length; i++) { 

       if (result[i].UploadTimeStamp) { 
        var value = new Date(result[i].UploadTimeStamp).toLocaleDateString(); 
        //increment counter for this value (starting at 1) 
        var count = ((temp[value] && temp[value].Upload)? temp[value].Upload: 0) + 1; 

        if (temp[value] === undefined) { 

         temp[value] = {} 
         temp[value].Upload = count; 

        } 
        else { 

         temp[value].Upload = count; 

        } 
       } 
       else { 

        var value = new Date(result[i].DoneTimeStamp).toLocaleDateString(); 
        //increment counter for this value (starting at 1) 
        var count = ((temp[value] && temp[value].Done)? temp[value].Done: 0) + 1; 

        if (temp[value] === undefined) { 

         temp[value] = {} 
         temp[value].Done = count; 

        } 
        else { 

         temp[value].Done = count; 

        }  
       } 

      } 

      console.log(JSON.stringify(temp))