src="jquery-2.1.4.js" src="jquery.mask.js"to the location relative to where your html file sits, eg
src="scripts/jquery-2.1.4.js"
>I am running your code but changes the src to fullpath>><!DOCTYPE html> >><html> >><head> >> <script src="jquery-2.1.4.js"></script> >> <script src="jquery.mask.js"></script> >> <script> >> jQuery(document).ready(function($) { >> $("#date").mask("00/00/0000"); >> $("#date").val("12/09/2015"); >> }); >> </script> >></head> >><body> >> <form> >> <label for="date">Date</label> >> <input type="text" name="date" id="date"/> >> </form> >></body> >></html> >>