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JavaScript jQuery Basics (2014) Creating a Simple Lightbox Perform: Part 3

$ sign

hey ! please I just wanna know exactly when we should use the dollar sign before a avriable and when we shouldnt, is it just a question of preference or there is a rule !

2 Answers

28,736 Points

It's to make easier the identification of the datas stored in the variable. Often you want to preceed the variable name with a dollar sign when you store inside Jquery objects.

thanks geoffrey !