質問編集履歴
1
情報の追記
test
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```
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app/js/scripts.js
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```javascript
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const slider = function(){
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// Next(Prev)ボタンの取得
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const next = document.querySelector(".next");
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const prev = document.querySelector(".prev");
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// liタグのwidthを取得
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const sliderwidth = document.querySelector(".sliderlist__item");
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let width = sliderwidth.clientWidth;
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// slider(ul要素、li要素一覧)の取得
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const sliderlist = document.querySelector(".sliderlist");
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const sliderlist_item = document.querySelectorAll(".sliderlist__item")
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// カウンターの設定
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let counter = 0;
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// イベントリスナー (next)
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next.addEventListener("click", function(){
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if(counter == sliderlist_item.length - 1) return; //ボタン連打対策
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prev.style.display = "block";
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sliderlist.style.transition = ".3s";
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counter ++;
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sliderlist.style.transform = "translateX("+ (- width * counter) + "px)";
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sliderlist.addEventListener("transitionend", function(){
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if(counter == sliderlist_item.length - 1){
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sliderlist.style.transition = "none";
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next.style.display = "none";
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}
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})
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});
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// イベントリスナー (prev)
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prev.addEventListener("click", function(){
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if(counter == sliderlist_item.length - sliderlist_item.length) return; //ボタン連打対策
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next.style.display = "block";
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sliderlist.style.transition = ".3s";
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counter --;
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sliderlist.style.transform = "translateX("+ (- width * counter) + "px)";
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sliderlist.addEventListener("transitionend", function(){
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if(counter == sliderlist_item.length - sliderlist_item.length){
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sliderlist.style.transition = "none";
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prev.style.display = "none";
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}
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})
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});
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};
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slider();
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```
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rails6ではpack_tagを使用し、application.jsでのパスの記述方法も間違えてはいないはずなのでそのほかで何かが間違えていると思います。
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