回答編集履歴
1
行集計
test
CHANGED
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@@ -35,3 +35,83 @@
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35
35
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36
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```
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38
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39
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40
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41
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# 行集計
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42
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43
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44
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45
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```javascript
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46
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47
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<script>
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48
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49
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document.addEventListener('change',function(e){
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50
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51
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var t=e.target;
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52
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53
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if(t.nodeName=="INPUT" && t.type=="number"){
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54
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55
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var sum=0;
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56
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57
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var p=t.parentNode.parentNode;
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58
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59
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/*trまで遡る処理ですがちゃんとやるならもう少し工夫が必要*/
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60
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61
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Array.prototype.map.call(p.querySelectorAll('input[type=number]'),function(i){;
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62
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63
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sum+=(parseFloat(i.value)||0);
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64
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65
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});
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66
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67
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p.querySelector('td:last-child').innerHTML=sum;
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68
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69
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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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</script>
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76
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77
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<table>
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78
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79
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<tr>
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80
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81
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<td><input type="number" step="0.5" ></td>
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82
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83
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<td><input type="number" step="0.25" ></td>
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84
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85
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<td><input type="number" step="0.5" ></td>
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86
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87
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<td>0</td>
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89
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</tr>
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90
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<tr>
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93
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<td><input type="number" step="0.5" ></td>
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94
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95
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<td><input type="number" step="0.25" ></td>
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96
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97
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<td><input type="number" step="0.5" ></td>
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98
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99
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<td>0</td>
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100
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101
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</tr>
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103
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<tr>
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104
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105
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<td><input type="number" step="0.5" ></td>
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106
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107
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<td><input type="number" step="0.25" ></td>
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108
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109
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<td><input type="number" step="0.5" ></td>
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110
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111
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<td>0</td>
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112
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113
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</tr>
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114
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115
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</table>
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116
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117
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```
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