尝试访问 Javascript 对象和您的函数并返回未定义

Trying to access Javascript Object and Your Functions and Returning Undefined

我在访问此方法和变量时遇到了一些问题,然后 return 未定义。

我正在尝试例如:

var slider = animateSlider();

slider.init();

slider.current;

我只想访问此函数的所有值,以使用他的回调来操作插件。

(function($,window,document,undefined)
{
    var Arrow = function (pages) {
        this.pages = pages;
        if(this.pages === 1) {
            $('.prev').css({"opacity": "0", "z-index": "-1"});
        } else {
            $('.prev').css({"opacity": "1", "z-index": "1"});
        }

        if(this.pages < $('.anim-slider > .anim-slide').length) {
            $('.next').css({"opacity": "1", "z-index": "1"});
        } else {
            $('.next').css({"opacity": "0", "z-index": "-1"});
        }
    };
    /**
     * [Create the contructor of animateSlider Plugin]
     * @param  {object} element [the element the plugin is chain to]
     * @param  {object} options [plugin's configuration object]
     */
    var animateSlider   =   function(element,options)
    {
        this.element    =   element;
        this.$element   =   $(element);
        this.options    =   options;
    };

    animateSlider.prototype = 
    {
        /**
         * [Initialize the plugin]
         */
        init        :   function()
        {
            //Use Modernizr
            this.cssAnimations  =   Modernizr.cssanimations;
            this.cssTransitions =   Modernizr.csstransitions;
            if (!this.cssAnimations || !this.cssTransitions)
            {
                throw new Error("Your broswer does not support CSS3 Animations or Transitions");
            }

            this.config         =   $.extend({},this.defaults,this.options);
            this.slides         =   this.$element.children(".anim-slide");
            this.slidesCount    =   this.slides.length;
            this.interval       =   [];//Ovveride config.interval 
            this.current        =   0; //first slide    

            $('.contador').html(parseInt(this.current + 1) + ' de ' + this.slidesCount);    

            var $dots   =   $("<div class=\"anim-dots\"></div>");
            var temp    =   this.slidesCount;
            while ( temp --)
            {
                $dots.append("<span></span>");
            }
            $dots.appendTo(this.$element);
            this.slides.eq(this.current).addClass("anim-slide-this");

            this.$dots          =   this.$element.find(".anim-dots>span");
            this.$navNext       =   $(".anim-arrows-next");
            this.$navPrev       =   $(".anim-arrows-prev");

            this.loadEvents();
            this.navigate(this.current);
            this.updateDots();
            this.autoplay();

        },
        /**
         * [Go to current slide and set the proper classes to animate the elements]
         * @param  {number} page [current slide]
         */
        navigate    :   function(page)
        {
            //Classes created from animate.css, you can add your own here.
            var classes     =   'bounce flash pulse rubberBand shake swing tada wobble bounceIn bounceInDown bounceInRight bounceInUp bounceOut bounceOutDown bounceOutLeft bounceOutRight bounceOutUp fadeIn fadeInDown fadeInDownBig fadeInLeft fadeInLeftBig fadeInRight fadeInRightBig fadeInUp fadeInUpBig fadeOut fadeOutDown fadeOutDownBig fadeOutLeft fadeOutLeftBig fadeOutRight fadeOutRightBig fadeOutUp fadeOutUpBig flipInX flipInY flipOutX flipOutY lightSpeedIn lightSpeedOut rotateIn rotateInDownLeft rotateInDownRight rotateInUpLeft rotateInUpRight rotateOut rotateOutDownLeft rotateOutDownRight rotateOutUpLeft rotateOutUpRight slideInDown slideInLeft slideInRight slideOutLeft slideOutRight slideOutUp slideInUp slideOutDown hinge rollIn rollOut fadeInUpLarge fadeInDownLarge fadeInLeftLarge fadeInRightLarge fadeInUpLeft fadeInUpLeftBig fadeInUpLeftLarge fadeInUpRight fadeInUpRightBig fadeInUpRightLarge fadeInDownLeft fadeInDownLeftBig fadeInDownLeftLarge fadeInDownRight fadeInDownRightBig fadeInDownRightLarge fadeOutUpLarge fadeOutDownLarge fadeOutLeftLarge fadeOutRightLarge fadeOutUpLeft fadeOutUpLeftBig fadeOutUpLeftLarge fadeOutUpRight fadeOutUpRightBig fadeOutUpRightLarge fadeOutDownLeft fadeOutDownLeftBig fadeOutDownLeftLarge fadeOutDownRight fadeOutDownRightBig fadeOutDownRightLarge bounceInBig bounceInLarge bounceInUpBig bounceInUpLarge bounceInDownBig bounceInDownLarge bounceInLeft bounceInLeftBig bounceInLeftLarge bounceInRightBig bounceInRightLarge bounceInUpLeft bounceInUpLeftBig bounceInUpLeftLarge bounceInUpRight bounceInUpRightBig bounceInUpRightLarge bounceInDownLeft bounceInDownLeftBig bounceInDownLeftLarge bounceInDownRight bounceInDownRightBig bounceInDownRightLarge bounceOutBig bounceOutLarge bounceOutUpBig bounceOutUpLarge bounceOutDownBig bounceOutDownLarge bounceOutLeftBig bounceOutLeftLarge bounceOutRightBig bounceOutRightLarge bounceOutUpLeft bounceOutUpLeftBig bounceOutUpLeftLarge bounceOutUpRight bounceOutUpRightBig bounceOutUpRightLarge bounceOutDownLeft bounceOutDownLeftBig bounceOutDownLeftLarge bounceOutDownRight bounceOutDownRightBig bounceOutDownRightLarge zoomIn zoomInUp zoomInUpBig zoomInUpLarge zoomInDown zoomInDownBig zoomInDownLarge zoomInLeft zoomInLeftBig zoomInLeftLarge zoomInRight zoomInRightBig zoomInRightLarge zoomInUpLeft zoomInUpLeftBig zoomInUpLeftLarge zoomInUpRight zoomInUpRightBig zoomInUpRightLarge zoomInDownLeft zoomInDownLeftBig zoomInDownLeftLarge zoomInDownRight zoomInDownRightBig zoomInDownRightLarge zoomOut zoomOutUp zoomOutUpBig zoomOutUpLarge zoomOutDown zoomOutDownBig zoomOutDownLarge zoomOutLeft zoomOutLeftBig zoomOutLeftLarge zoomOutRight zoomOutRightBig zoomOutRightLarge zoomOutUpLeft zoomOutUpLeftBig zoomOutUpLeftLarge zoomOutUpRight zoomOutUpRightBig zoomOutUpRightLarge zoomOutDownLeft zoomOutDownLeftBig zoomOutDownLeftLarge zoomOutDownRight zoomOutDownRightBig zoomOutDownRightLarge flipInTopFront flipInTopBack flipInBottomFront flipInBottomBack flipInLeftFront flipInLeftBack flipInRightFront flipInRightBack flipOutTopFront flipOutTopBack flipOutBottomFront flipOutBottomback flipOutLeftFront flipOutLeftBack flipOutRightFront flipOutRightBack strobe shakeX shakeY spin spinReverse slingshot slingshotReverse pulsate heartbeat panic';
            var classShow,classHide,delayShow,$next,$current,currentAnimate,nextAnimate;

            $current        =   this.slides.eq(this.current);
            currentAnimate  =   this.elemAnimate(this.current,this.config);
            this.current    =   page;
            $next           =   this.slides.eq(this.current);
            nextAnimate     =   this.elemAnimate(this.current,this.config);

                /*=========================================*/
                $current.removeClass(" anim-slide-this "+classes);
                $current.find("*").removeClass(classes);

                    //Iterate through a javascript plain object of current and next Slide
                    $.each(currentAnimate,function(index)
                    {
                        if ( index == $current.prop("tagName").toLowerCase() )
                        {
                            classHide   =   $current.data("classHide");
                            delayShow   =   $current.data("delayShow");
                            $current.removeClass(delayShow);
                            $current.addClass(classHide+" animated");
                            return false;
                        }
                        else
                        {
                            classHide   =   $current.find(index).data("classHide");
                            delayShow   =   $current.find(index).data("delayShow"); 
                            $current.find(index).removeClass(delayShow);
                            $current.find(index).addClass(classHide+" animated");
                        }
                    });
                    $.each(nextAnimate,function(index)
                        {
                            if ( index == $current.prop("tagName").toLowerCase() )
                            {
                                classShow   =   $next.data("classShow") ;
                                delayShow   =   $next.data("delayShow");
                                $next.removeClass(classes);
                                $next.addClass(classShow+" "+delayShow+" animated");
                                return false;
                            }
                            else
                            {
                                classShow   =   $next.find(index).data("classShow");
                                delayShow   =   $next.find(index).data("delayShow"); 
                                $next.find(index).removeClass(classes);
                                $next.find(index).addClass(classShow+" "+delayShow+" animated ");
                            }
                        });

                $next.addClass(" anim-slide-this");
                /*=========================================*/ 
            this.updateDots();
        },
        /**
         * [Update the dots to the current slide]
         */
        updateDots  :   function() 
        {
            this.$dots.removeClass("anim-dots-this");
            this.$dots.eq(this.current).addClass("anim-dots-this");
        },
        /**
         * [If the dots are clicked the autoplay procedure stops
         * and you navigate to the current slide]
         * @param  {number} page [current slide]
         */
        dots        :   function(page)
        {
            if ( page >= this.slidesCount || page < 0)
            {
                return false;
            }
            if (this.config.autoplay)
            {
                clearTimeout(this.autoplay);
                this.config.autoplay    =   false;
            }
            this.navigate(page);
        },
        /**
         * [Get the configuration object for each slide element and attach it to elements with $.data]
         * @param  {number} page   [current slide]
         * @param  {object} config [configuration object]
         */
        elemAnimate :   function(page,config)
        {
            if ( typeof config.animations == "object" )
            {
                if ( this.slidesCount !== Object.keys(config.animations).length )
                {
                    throw new SyntaxError("Slides length and animation Object length must be equal.");
                }
                //Get the selected Slide configuration object
                var animations      =   config.animations[page];
                var $current        =   this.slides.eq(page);
                return $.each(animations,function(index,value)
                    {

                        if ( index  ==  $current.prop("tagName").toLowerCase() )
                        {
                            if ( $current.data("classShow") == null )
                            {
                                if ( typeof value.show      === "string" )  {   $current.data("classShow",value.show);      }   else    {   $current.data("classShow","");  }
                                if ( typeof value.hide      === "string" )  {   $current.data("classHide",value.hide);      }   else    {   $current.data("classHide","");  }   
                                if ( typeof value.delayShow === "string" )  {   $current.data("delayShow",value.delayShow); }   else    {   $current.data("delayShow"," "); }   
                            }
                            return false;
                        }
                        else
                        {
                            if ( !$current.find(index)[0] )
                            {
                                throw new TypeError("The element \'"+index+"\' does not exist.");
                            }

                            if ( $current.find(index).data("classShow") == null )
                            {
                                if( typeof value.show       === "string" ) {    $current.find(index).data("classShow",value.show);      } else  {   $current.find(index).data("classShow"," "); }
                                if( typeof value.hide       === "string" ) {    $current.find(index).data("classHide",value.hide);      } else  {   $current.find(index).data("classHide"," "); }
                                if( typeof value.delayShow  === "string" ) {    $current.find(index).data("delayShow",value.delayShow); } else  {   $current.find(index).data("delayShow"," "); }
                            }
                        }
                    });
            }
        },
        /**
         * [Call the animDuration for each slide and if the animation time of current slide is bigger than 
         * config.interval replace it with this.inteval, else leave config.interval with the default value]
         */
        autoplay    :   function() 
        {
            if (this.config.autoplay)
            {
                var page                =   this.current;
                var that                =   this;
                var loop                =   function()

                {
                    page    =   ( page >= that.slidesCount -1 || page < 0 ) ? 0 : page + 1;
                    that.navigate(page);
                    that.autoplay();
                };

                if ( this.interval.length === this.slidesCount )
                {
                    this.autoplayTime   =   setTimeout(loop,this.interval[page]);
                    return;
                }

                this.animDuration(page).done(function(animationTime)
                {
                    if( animationTime >= that.config.interval )
                    {
                        that.interval[page] =   animationTime;
                        that.autoplayTime   =   setTimeout(loop,0); 
                    }               
                    else if( animationTime < that.config.interval   )
                    {
                        that.interval[page] =   that.config.interval;
                        that.autoplayTime   =   setTimeout(loop,that.config.interval-animationTime);
                    }
                });
            }
        },
        /**
         * [Find the total animation time for the current slide]
         * @param  {number} page    [current slide]
         * @return {object} promise [jQuery's Promises to make asynchronous call]
         */
        animDuration:   function(page) 
        {
            var $slideAnimations            =   this.slides.eq(page);
            var slideAnimationsCount        =   $slideAnimations.children("*.animated").length;
            var animationStart              =   +new Date();
            var promise                     =   new $.Deferred();
            var animationTime,count         =   0;
            $slideAnimations.on("animationend webkitAnimationEnd oanimationend MSAnimationEnd",function()
                {
                    var animationEnd    =   +new Date();
                    animationTime       =   Math.ceil((animationEnd -animationStart)/1000)*1000;
                    count++;
                    if (count == slideAnimationsCount)
                    {
                        promise.resolve(animationTime);
                    }
                }); 
            return promise;
        },
        /**
         * [Attach events handlers to specific tasks]
         */
        loadEvents  :   function()
        {
            var that = this;
            this.$navNext.on("click",function(event)
                {
                    if(parseInt(that.current + 1) < that.slidesCount) {
                        if (that.config.autoplay)
                        {
                            clearTimeout(that.autoplay);
                            that.config.autoplay    =   false;
                        }
                        var page    =   (that.current >= that.slidesCount - 1 ) ?  0 : that.current + 1 ;
                        that.navigate(page,"next");
                        Arrow(parseInt(page + 1));
    //                    contador de paginas
                        $('.contador').html(parseInt(page + 1) + ' de ' + that.slidesCount);
                    }

                    event.preventDefault();
                });
            this.$navPrev.on("click",function(event)
                {
                    if(parseInt(that.current + 1) !== 1) {
                        if (that.config.autoplay)
                        {
                            clearTimeout(that.autoplay);
                            that.config.autoplay    =   false;
                        }
                        var page    =   ( that.current === 0 )? that.slidesCount - 1 : that.current - 1;
                        that.navigate(page,"prev");
                        Arrow(parseInt(page + 1));
    //                    contador de paginas
                        $('.contador').html(parseInt(page + 1) + ' de ' + that.slidesCount);    
                    }

                    event.preventDefault(); 
                });
            this.$dots.on("click.slide",function(event)
                {
                    var page    =   $(this).index();
                    that.dots(page);
                    event.preventDefault();
                });
        },
        defaults    :
        {
            autoplay    : true,
            interval    : 5000
        }
    };

    /**
     * [Attach the plugin to jQuery's prototype]
     * @param  {object} options [plugin's configuration object]
     * @return {object} this    [the jQuery wrapper]
     */
    $.fn.animateSlider  =   function(options)
    {
        return this.each(function()
        {
            var instance    =   $.data(this,"animateSlider");

            if (!instance)
            {
                $.data(this,"animateSlider",new animateSlider(this,options).init());
            }
        });
    };

})(jQuery);

您尝试使用的插件是 this

README 文件清楚地提到了如何使用插件。

$(<jquerySelector>).animateSlider();

你不能只选择你想从 IIFE 访问的函数,除非它把变量放在全局范围内,以防 jquery 插件通常通过 $.fn 将它们自己附加到 $ 范围内这种情况 $.fn.animateSlider 这意味着您只能通过上述语法访问它们。

但是如果您坚持访问 IIFE 中的变量。 我将给出访问 Arrow 变量的步骤:

  1. var Arrow = function (pages) { 更改为 Arrow = function (pages)
  2. 在主js文件中。创建实例 var obj_name = new Arrow(1);

虽然我想不出你为什么要这样做,如果这是唯一的方法,那么你的设计是错误的。