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R W
19,947 PointsVariable naming in JQuery
I am working on the JQuery course of my track and have noticed the instructor periodically will declare a variable using a dollar sign ($) at the start of the name, and other times will declare a variable in a more regular fashion (as in, starting with a letter). I know that the "$" at the front of the variable name does not make a difference in its behavior or functionality but I was wondering why one might name some variables with the dollar sign at the start and others without; is there some kind of semantic meaning associated with one or the other? Thanks!
1 Answer
Steven Parker
243,656 PointsWhen using JQuery, the $ itself becomes an abbreviation for "JQuery".
As a convention, programmers will often use a $ to start a variable name if that variable will be used to hold a JQuery object. This makes it easy to remember later that you can apply JQuery extension methods to them.
Happy coding! -sp
