(function( factory ) { if ( typeof define === "function" && define.amd ) { define( ["jquery", "../jquery.validate"], factory ); } else { factory( jQuery ); } }(function( $ ) { /* * Localized default methods for the jQuery validation plugin. * Locale: NL */ $.extend($.validator.methods, { date: function(value, element) { return this.optional(element) || /^[\d]{1,4}\-[0-1][0-9]\-[0-3][0-9]?$/.test(value); } }); }));