javascript - JS Dropdown Menu Behavior -

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i have dropdown menu working can't figure out how close previous menu onclick. menues stay open need them close when different menu open.

please see jsfiddle https://jsfiddle.net/yvhnphp4/

$(document).ready(function(){   // dropdown menu   var finddropdowns = document.queryselectorall(".has-dropdown");   for(var = 0; < finddropdowns.length; i++) {     if(i == 0) {         var dropdownid = "has-dropdown-1";         finddropdowns[i].setattribute("id", dropdownid);     }else {         var addonetoindex = + 1;         dropdownid = "has-dropdown-" + addonetoindex;         finddropdowns[i].setattribute("id", dropdownid);     }     var targetdropdown = document.getelementbyid(dropdownid);     targetdropdown.onclick = dropdowntrigger;    } function dropdowntrigger(e) {     e.preventdefault();     var showhidedropdown = e.target.nextelementsibling;      showhidedropdown.setattribute("class", "show"); } });  <ul class="nav">  <li><a class="has-dropdown" href="">link</a>                         <ul>                             <li><a href="">sub-link</a></li>                             <li><a href="">sub-link</a></li>                             <li><a href="">sub-link</a></li>                         </ul>                     </li>                     <li><a class="has-dropdown" href="">link</a>                         <ul>                             <li><a href="">sub-link</a></li>                             <li><a href="">sub-link</a></li>                             <li><a href="">sub-link</a></li>                         </ul>                     </li>                 </ul>  .nav ul {display:none;} .nav ul.show{display:block;}

you can remove .show class ul tags in .nav still have it, before opening new dropdown:

function dropdowntrigger(e) {     var opened = document.queryselectorall(".nav ul.show");     for(var = 0; < opened.length; i++) {         opened[i].removeattribute("class");     }      ... }

note since you're using jquery anyway ($(document).ready) there much better way this.

also, use href="#" instead of href="".


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