jquery - Uncaught TypeError: Cannot set property 'Width' of undefined -

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i'm having issue dynamically setting width of ul element in website.

below jquery i'm uusing

var button = $("#navbar"); alert(button); var count = $("#header li").length; alert(count); $("#navbar").style.width = count * 110

here's html

<div id="header" class="clearfix">     <div class="clearfix hidden">         <img src="/content/images/main-logo.png">     </div>     <div id="navbar">         <ul>             <li id="home">                 home             </li>             <li id="portfolio">                 portfolio             </li>             <li id="about">                             </li>         </ul>     </div> </div>

the "alert(button)" returns [object object] it's not null (at least understanding of it) error mentioned in title whenever try set width of it.

anyone know i'm doing wrong?

you must use 1 of following code

$("#navbar")[0].style.width = count * 110

or

$("#navbar").width(count * 110)

because style property of dom element while $("#navbar") jquery object, not contain style property default.


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