回答編集履歴
1
追記
answer
CHANGED
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@@ -15,4 +15,20 @@
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15
15
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<input type = 'button' id='id3' value='ccc' class='douteki'>
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16
16
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17
17
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18
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+
```
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19
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+
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20
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+
# 追記
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21
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jQueryナシ版
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22
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```javascript
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23
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<script>
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24
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document.addEventListener('click',function(e){
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25
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var t=e.target;
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26
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if(t.className.match(/(^| )douteki(?: |$)/)){
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27
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t.style.backgroundColor='#000000';
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28
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}
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29
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});
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30
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</script>
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31
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<input type = 'button' id='id1' value='aaa' class='douteki'>
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32
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<input type = 'button' id='id2' value='bbb' class='douteki'>
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33
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+
<input type = 'button' id='id3' value='ccc' class='douteki'>
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18
34
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```
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