javascript - 页面加载时的随机div？

Question

Hoping someone can help as I do not know much about JS

I have 3 divs

 <div id="content1">This is content 1 </div>
 <div id="content2">This is content 2 </div>
 <div id="content2">This is content 2 </div>

I require some JS that randomly loads one of those divs on page load and hide the other two

Any help would be much appreciated

Thanks

Answer 1

You can select all div elements when the page loads, then pick a random one to keep and hide the rest.

 var elems = $("div"); if (elems.length) { var keep = Math.floor(Math.random() * elems.length); for (var i = 0; i < elems.length; ++i) { if (i !== keep) { $(elems[i]).hide(); } } } 

 <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> <div id="content1">This is content 1 </div> <div id="content2">This is content 2 </div> <div id="content3">This is content 3 </div>