javascript - Show bootstrap alert when have content -


i want display bootstrap alert when have content

it content when push, if doesn't have content want see like

enter image description here

code:

 <div class="alert alert-success">                 <ul id="discussion"></ul>             </div>

how can hide if <ul id="discussion"></ul> empty? regards

use below javascript @ bottom of page:

window.onload = function(){   var doc = document.getelementbyid('discussion').textcontent;   if(doc == '')      document.getelementbyid('discussion').parentnode.style.display = 'none'; }

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