Question

I has some div as follows

<div id="span1"></div>
<div id="span3"></div>
<div id="span5"></div>
<div id="span7"></div>
.....

There is “span” in the id, How to show or hide them by jquery ?

Answer 1

This should do the trick, if I understand the question correctly.

$('[id*="span"]').hide();

That said, a much BETTER approach would be to put a class on all the elements you want to manipulate with the same code then use the class to hide the elements as a group.

<div id="span1" class"span"></div>
<div id="span3" class"span"></div>
<div id="span5" class"span"></div>
<div id="span7" class"span"></div>

$('div.span').hide();

This is much cleaner.