ช่วยดู script search jquey หน่อยครับ เกี่ยวกับการเว้นวรรค

   (function ($) {
        $.fn.extend({
            search: function (callback, timeout) {
                timeout = timeout || 1e3; // 1 second default timeout
                var timeoutReference,
                        search = function (el) {
                            if (!timeoutReference)
                                return;
                            timeoutReference = null;
                            callback.call(el);
                        };
                return this.each(function (i, el) {
                    var $el = $(el);
                    
                    $el.is(':input') && $el.on('keyup keypress paste', function (e) {

                        if (e.type == 'keyup' && e.keyCode != 8)
                            return;

                        if (timeoutReference)
                            clearTimeout(timeoutReference);
                        timeoutReference = setTimeout(function () {


                            var valor = el.value.toLowerCase();
                            var gameNameTrim = valor.replace(/\s+/g, '');
                            var gameNameTrim2 = gameNameTrim.replace(/[^\w\s]/gi, '');
                            console.log(gameNameTrim2);
                            if (gameNameTrim2) {

                                $(".containerItems").children().fadeOut();
                                $(".containerItems [data-search*=" + gameNameTrim2 + "]").fadeIn('fast');

                            } else {

                                $(".containerItems").children().fadeIn();
                            }

                            search(el);
                            console.log(el);

                        }, timeout);
                    });
                });



            }
        });
    })