回答編集履歴
1
chousei
test
CHANGED
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@@ -3,3 +3,139 @@
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const btn = document.querySelector('.btn');
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```
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# 追記
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複数のmenuを想定しているならこんな感じ
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OPEN/CLOSEを意識すること。
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非表示は高さの設定よりdisplayでやるほうが一般的です。
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```javascript
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<script>
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window.addEventListener('DOMContentLoaded',()=>{
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document.querySelectorAll('.menu').forEach(x=>{
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x.style.display="none";
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});
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document.querySelectorAll('.btn').forEach(x=>{
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x.addEventListener('click',e=>{
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var flg=x.textContent=="OPEN";
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x.nextElementSibling.style.display=flg?"initial":"none";
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x.textContent=flg?"CLOSE":"OPEN";
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});
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});
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});
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</script>
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<div class="contentsWrap">
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<p class="btn">OPEN</p>
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<ul class="menu">
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<li>menu</li>
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<li>menu02</li>
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<li>menu03</li>
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<li>menu04</li>
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<li>menu05</li>
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<li>menu06</li>
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</ul>
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</div>
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<div class="contentsWrap">
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<p class="btn">OPEN</p>
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<ul class="menu">
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<li>menu</li>
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<li>menu02</li>
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<li>menu03</li>
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<li>menu04</li>
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<li>menu05</li>
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<li>menu06</li>
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</ul>
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</div>
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</script>
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<div class="contentsWrap">
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<p class="btn">OPEN</p>
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<ul class="menu">
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<li>menu</li>
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<li>menu02</li>
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<li>menu03</li>
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<li>menu04</li>
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<li>menu05</li>
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<li>menu06</li>
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</ul>
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</div>
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<div class="contentsWrap">
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<p class="btn">OPEN</p>
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<ul class="menu">
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<li>menu</li>
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<li>menu02</li>
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<li>menu03</li>
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<li>menu04</li>
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<li>menu05</li>
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<li>menu06</li>
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</ul>
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</div>
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```
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