回答編集履歴

ミスを訂正

2018/12/22 07:32

投稿

スコア2050

answer CHANGED Viewed

@@ -14,6 +14,8 @@
     if(keyIndex>=0){
         newDataList[keyIndex].amount+=dataList[i].amount;
     }else{
+        keyList.push(dataList[i].date);
-       keyList.push(dataList[i].date);newDataList[i].push({id: i, date:dataList[i].date, amount: dataList[i].amount});
+        newDataList[i].push({id: newDataList.length, date:dataList[i].date, amount: dataList[i].amount});
+    }
 }
 ```