What is $$ in jQuery

Hi every one,

I am new to Jquery, i learnt JQUERY and started working on that and somewhere i saw $$ in the code.
I gogled for $$ in Jquery but no use so any one can help me in this .

I think it is just a convention used by a particular developer.

See This thread: http://stackoverflow.com/questions/1463867/javascript-double-dollar-sign

Short answer, the $ sign is a valid identifier in JavaScript so you are just looking at a bunch of ugly variable names. ;)