回答編集履歴
1
ちょうせい
answer
CHANGED
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@@ -1,15 +1,14 @@
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1
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処理をまとめるならこんな感じ
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-
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2
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※微調整しました
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3
3
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```javascript
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4
4
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<script>
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6
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window.addEventListener('DOMContentLoaded', ()=>{
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[].forEach.call(document.querySelectorAll('.count'),x=>{
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8
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x.addEventListener('click',
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8
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x.addEventListener('click',()=>{
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var t=e.target;
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var view=
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var view=x.closest('tr').querySelector('.view');
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10
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var total=document.querySelector('#total');
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view.textContent=parseInt(view.textContent)+
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11
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view.textContent=parseInt(view.textContent)+x.classList.contains('up')-x.classList.contains('down')
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total.textContent=[].map.call(document.querySelectorAll('.view'),x=>parseInt(x.textContent)).reduce((x,y)=>x+y);
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});
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14
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});
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