回答編集履歴
1
参考
test
CHANGED
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@@ -25,3 +25,45 @@
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25
25
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});
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```
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28
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29
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# 追記
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30
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31
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ちなみにelemを配列で宣言して、iをletで処理すればある程度までできます
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32
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33
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```javascript
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34
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35
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<script>
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36
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window.addEventListener('DOMContentLoaded', function(e){
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38
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var elem=[];
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40
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for(let i = 1; i < 4; i++){
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elem[i]=document.querySelector('#x'+i);
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44
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45
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elem[i].addEventListener('mouseover', function(e){
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46
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console.log(i);
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48
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});
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}
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});
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</script>
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61
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<div id="x1">1</div>
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62
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<div id="x2">2</div>
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64
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65
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<div id="x3">3</div>
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66
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67
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<div id="x4">4</div>
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68
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```
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