Many JavaScript frameworks like to use $ as function or variable name, jQuery is one of them. In jQuery, $ is just a reference to window.jQuery, so even if $ is deleted, window.jQuery will still be available to ensure the whole library can work normally. jQuery API design takes fully consideration of multiple frameworks conflicts, we can use jQuery.noConflict function to easily handle control.jQuery.noConflict accepts one optional boolean parameter[1] to determine whether to hand jQuery object itself when handing the $ reference.jQuery.noConflict([removeAll])By default, when executing noConfli...