Avoid jQuery conflict with Other JavaScript library(prototype,YUI,mootools)

In this jQuery article, I will explain how to avoid jquery conflict with other javascript libraries.
javascript libraries such as YUI, prototype conflict with Jquery library as prototype library also uses `$` sign.To resolve this issue, jQuery has .noConflict() method.

.noConflict() method: Relinquish jQuery's control of the $ variable (override the $ function)
we can avoid prototype and jquery conflict using .noConflict() method.