回答編集履歴
2
訂正
test
CHANGED
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@@ -118,4 +118,12 @@
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118
118
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119
119
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},{});
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120
120
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121
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+
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122
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+
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123
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+
/*
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124
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+
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125
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{"2016-09-01":{"ID1":3,"ID2":7},"2016-09-02":{"ID1":5,"ID2":6}}
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126
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+
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127
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*/
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128
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+
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121
129
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```
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1
訂正
test
CHANGED
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@@ -91,3 +91,31 @@
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91
91
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92
92
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93
93
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```
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94
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+
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95
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+
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96
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+
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97
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98
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99
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100
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101
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#####訂正
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102
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+
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103
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問題を誤読していました。
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104
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+
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105
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```javascript
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106
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+
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107
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Object.keys(data).reduce((sum,key)=>{
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108
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+
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109
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sum[ data[key].date ] = sum[ data[key].date ] ? sum[ data[key].date ] : {};
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110
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+
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111
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var date = sum[ data[key].date ];
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112
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+
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113
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date[ data[key].id ] = date[ data[key].id ] ? date[ data[key].id ] : 0;
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114
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+
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115
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+
date[ data[key].id ] += parseInt( data[key].hours );
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116
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+
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117
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return sum;
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118
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+
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119
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},{});
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120
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+
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121
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```
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