回答編集履歴
1
tuiki
answer
CHANGED
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@@ -5,4 +5,20 @@
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5
5
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<span class="error">エラー2</span>
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6
6
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<span class="error">エラー3</span>
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7
7
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</pre>
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8
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+
```
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9
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+
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10
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# sample
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11
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```javascript
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12
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<script>
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13
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window.addEventListener('DOMContentLoaded', ()=>{
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14
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[].forEach.call(document.querySelectorAll('.error'),x=>{
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15
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x.parentNode.insertBefore(document.createElement('br'),x.nextElementSibling);
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16
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});
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17
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});
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18
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</script>
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19
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<body>
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20
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<span class="error">エラー1</span>
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21
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<span class="error">エラー2</span>
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22
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<span class="error">エラー3</span>
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23
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</body>
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8
24
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```
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