如何对具有相同功能的多个元素执行转换

Question

I have 2 elements which should both rotateY(180deg) every time my button is clicked, however the code I have now only rotates the first one. How do I achieve a transfomation for all my elements? (Vanilla JS)

.question {
                width:100%;
                height:100%;
                transition:transform 0.5s;
                transform-style:preserve-3d;
                
            }
  .sceneQ {
                width:600px;
                height:150px;
            }
            .questionTransform {
                transform:rotateY(190deg)
            }
 .face {
                
                text-align:center;
                backface-visibility:hidden;
            }
            .back {
                transform: rotateY(180deg);
            }

<button id="hintbtn" onclick="doTransform()">Do Transform</button>

<div id="sceneQ1" class="sceneQ">
        <div class="question" id="Q1">
            <div class="face front">
            <p>Where does skateboarding originate from?</p>
         </div>
            <div class="face back">
                <p>Someplace in America...</p>
            </div>
        </div> </div>

<div id="sceneQ2" class="sceneQ">
        <div class="question" id="Q2">
            <div class="face front">
            <p>In what decade were the first kind of skateboards created?</p>
                </div>
        <div class="face back">
            <p>After the 2nd World War...</p>
            </div>
        </div> </div>

function doTransform() {
                const element = document.querySelector('.sceneQ .question')
                element.classList.toggle('questionTransform')
            }

Answer 1

I hope this can help you. Check this article for more info

 function doTransform() { var elements = document.querySelectorAll('.sceneQ .question'); [].forEach.call(elements, function(element) { element.classList.toggle('questionTransform') }); }

 .question { width:100%; height:100%; transition:transform 0.5s; transform-style:preserve-3d; } .sceneQ { width:600px; height:150px; } .questionTransform { transform:rotateY(190deg) } .face { text-align:center; backface-visibility:hidden; } .back { transform: rotateY(180deg); }

 <button id="hintbtn" onclick="doTransform()">Do Transform</button> <div id="sceneQ1" class="sceneQ"> <div class="question" id="Q1"> <div class="face front"> <p>Where does skateboarding originate from?</p> </div> <div class="face back"> <p>Someplace in America...</p> </div> </div> </div> <div id="sceneQ2" class="sceneQ"> <div class="question" id="Q2"> <div class="face front"> <p>In what decade were the first kind of skateboards created?</p> </div> <div class="face back"> <p>After the 2nd World War...</p> </div> </div> </div>