jQuery check if element has a class beginning with some string

Question

I need to loop through some elements in the page and then, for each one, if it had a class beginning with, for example, \"C\", do something.

$(\'#dialog li\').e         


        

Answer 1

I don't think that there is a built-in selector to test for classes starting with a string.

There is a selector to test if an attribute starts with a string, so if you know that your elements only have one class (or always start with the class in question), you could do:

$(this).is("class^='C'")

If, however, you can't guarantee either of the above conditions, you would have to manually split out and test each class defined on the element, as described here.