What does `a > b` mean?

Question

I\'m reading a tutorial about creating a shoutbox with jquery, php and ajax. In the jquery code, it creates a variable like this

var messageList = $(\".content &         


        

Answer 1

It searches for a ul that's the direct child of .content, so if you'd change the html to

your selector wouldn't return anything. There's more info on all kinds of selectors on http://api.jquery.com/category/selectors/