refactoring jquery selector expression

Question

Is there a way that I can write the following selector in a less verbose fashion (the parent id is being repeated again and again).

$("#parent_id .class1 , #parent_id .class2,....")

Thanx!

Answer 1

$("#parent_id").find(".class1, .class2, .class3").....

Answer 2

List your classes in the context of the object like so:

$('.class1, .class2, .class3', $('#parent_id'))

Edit: jsFiddle example.