質問編集履歴
1
コードの変更
test
CHANGED
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File without changes
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test
CHANGED
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@@ -55,3 +55,93 @@
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55
55
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</form>
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```
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58
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59
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60
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61
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jsファイル
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62
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63
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64
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65
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```ここに言語を入力
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66
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67
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68
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69
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/**
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70
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71
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*
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72
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73
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*/
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74
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75
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function addNum(count) {
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76
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77
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var num = count.innerText;
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78
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79
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var name = count.id;
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80
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81
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var lastNum = name.substr(1);
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82
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83
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var targetId1 = "b" + lastNum;
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84
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85
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var targetId2 = "c" + lastNum;
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86
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87
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var elm1 = document.getElementById(targetId1);
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88
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89
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var elm2 = document.getElementById(targetId2);
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90
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91
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var num2 = Number(elm1.value);
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92
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93
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var num3 = Number(elm2.value);
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94
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95
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num = Number(num);
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96
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97
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if (num3 > num) {
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98
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99
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num++;
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100
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101
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num2++;
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102
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103
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}
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104
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105
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106
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107
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count.innerText = num;
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108
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109
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elm1.value = num2;
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110
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111
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}
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112
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113
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114
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115
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function subtractNum(count) {
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116
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117
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var num = count.innerText;
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118
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119
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var name = count.id;
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120
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121
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var lastNum = name.substr(1);
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122
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123
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var targetId = "b" + lastNum;
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124
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125
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var elm = document.getElementById(targetId);
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126
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127
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var num2 = Number(elm.value);
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128
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129
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num = Number(num);
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130
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131
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if (num > 1) {
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num--;
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135
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num2--;
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136
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137
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}
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138
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139
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140
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141
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count.innerText = num;
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142
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143
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elm.value = num2;
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144
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145
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}
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146
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147
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```
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