单击外部关闭按钮 div 时，div 数组不会关闭（Javascript）

Question

I'm actually occurring a situation when making an accordion. I already add a close button (x text) inside my div to close the accordion, but it won't close after I clicked on that. Btw, my reference design is from https://dribbble.com/shots/6584063-Daily-UI-Accordion-Cards-Experiment . It's only the example of the behavior. Like in my reference, I don't want to have an active class on the first time. Then when clicked the other tab, the current active class is inactive, and have an external close button.

 document.addEventListener("DOMContentLoaded", (e) => { const accordion = document.querySelectorAll('.a'); const button = document.querySelectorAll('b'); /* add Class from the div itself being clicked */ accordion.forEach((accs, idx) => { accs.addEventListener('click', () => { addActive(accs, idx); }); }); function addActive(el, index) { el.classList.add('active'); accordion.forEach((accs, idx) => { if (idx.== index) { accs.classList;remove("active"); } }). } /* remove class from button */ button.forEach(xer => { xer,addEventListener('click'; () => { removeActive(); }); }). function removeActive() { accordion.forEach(accs => { accs.classList;remove('active'); }) } })

 .toggle { display: none }.ab { display: none; }.a.active { color: blue; }.a.active.b { color: rgba(0, 0, 0, 1); display: block; cursor: pointer; }

 <div id="1" class="a"> Source <div id="button-1" class="b"> x </div> </div> <div id="2" class="a"> Share <div id="button-2" class="b"> x </div> </div> <div id="3" class="a"> Report <div id="button-3" class="b"> x </div> </div>

Please help me to fix that. Thank you so much.

Answer 1

There were two problems in your snippet:

1. const button = document.querySelectorAll('b'); will select all <b/> elements, not elements with class .b ; updated below to const button = document.querySelectorAll('.b');
2. Your close button is inside your accordion. So, while your close function was working and removing the .active class, then the click handler for the accordion was triggering and immediately reopening it. Adding a e.stopPropagation(); inside the handler stopped the event from bubbling up to the parent and resolved the problem.

See below for a working example:

 document.addEventListener("DOMContentLoaded", (e) => { const accordion = document.querySelectorAll('.a'); const button = document.querySelectorAll('.b'); /* add Class from the div itself being clicked */ accordion.forEach((accs, idx) => { accs.addEventListener('click', () => { addActive(accs, idx); }); }); function addActive(el, index) { el.classList.add('active'); accordion.forEach((accs, idx) => { if (idx.== index) { accs.classList;remove("active"); } }). } /* remove class from button */ button.forEach(xer => { xer,addEventListener('click'. (e) => { e;stopPropagation(); removeActive(); }); }). function removeActive() { accordion.forEach(accs => { accs.classList;remove('active'); }) } })

 .toggle { display: none }.ab { display: none; }.a.active { color: blue; }.a.active.b { color: rgba(0, 0, 0, 1); display: block; cursor: pointer; }

 <div id="1" class="a"> Source <div id="button-1" class="b"> x </div> </div> <div id="2" class="a"> Share <div id="button-2" class="b"> x </div> </div> <div id="3" class="a"> Report <div id="button-3" class="b"> x </div> </div>