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POTypeError using QueryLoader plugin
 

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  1. POTypeError using QueryLoader plugin
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    <p>For page loader i have used the plugin. Following is js:</p> <pre><code>var QueryLoader = { overlay: "", loadBar: "", preloader: "", items: new Array(), doneStatus: 0, doneNow: 0, selectorPreload: "body", ieLoadFixTime: 2000, ieTimeout: "", init: function() { if (navigator.userAgent.match(/MSIE (\d+(?:\.\d+)+(?:b\d*)?)/) == "MSIE 6.0,6.0") { //break if IE6 return false; } if (QueryLoader.selectorPreload == "body") { QueryLoader.spawnLoader(); QueryLoader.getImages(QueryLoader.selectorPreload); QueryLoader.createPreloading(); } else { $(document).ready(function() { QueryLoader.spawnLoader(); QueryLoader.getImages(QueryLoader.selectorPreload); QueryLoader.createPreloading(); }); } //help IE drown if it is trying to die :) QueryLoader.ieTimeout = setTimeout("QueryLoader.ieLoadFix()", QueryLoader.ieLoadFixTime); }, ieLoadFix: function() { var ie = navigator.userAgent.match(/MSIE (\d+(?:\.\d+)+(?:b\d*)?)/); if (ie[0].match("MSIE")) { while ((100 / QueryLoader.doneStatus) * QueryLoader.doneNow &lt; 100) { QueryLoader.imgCallback(); } } }, imgCallback: function() { QueryLoader.doneNow ++; QueryLoader.animateLoader(); }, getImages: function(selector) { var everything = $(selector).find("*:not(script)").each(function() { var url = ""; if ($(this).css("background-image") != "none") { var url = $(this).css("background-image"); } else if (typeof($(this).attr("src")) != "undefined" &amp;&amp; $(this).attr("tagName").toLowerCase() == "img") { var url = $(this).attr("src"); } url = url.replace("url(\"", ""); url = url.replace("url(", ""); url = url.replace("\")", ""); url = url.replace(")", ""); if (url.length &gt; 0) { QueryLoader.items.push(url); } }); }, createPreloading: function() { QueryLoader.preloader = $("&lt;div&gt;&lt;/div&gt;").appendTo(QueryLoader.selectorPreload); $(QueryLoader.preloader).css({ height: "0px", width: "0px", overflow: "hidden" }); var length = QueryLoader.items.length; QueryLoader.doneStatus = length; for (var i = 0; i &lt; length; i++) { var imgLoad = $("&lt;img&gt;&lt;/img&gt;"); $(imgLoad).attr("src", QueryLoader.items[i]); $(imgLoad).unbind("load"); $(imgLoad).bind("load", function() { QueryLoader.imgCallback(); }); $(imgLoad).appendTo($(QueryLoader.preloader)); } }, spawnLoader: function() { if (QueryLoader.selectorPreload == "body") { var height = $(window).height(); var width = $(window).width(); var position = "fixed"; } else { var height = $(QueryLoader.selectorPreload).outerHeight(); var width = $(QueryLoader.selectorPreload).outerWidth(); var position = "absolute"; } var left = $(QueryLoader.selectorPreload).offset()['left']; var top = $(QueryLoader.selectorPreload).offset()['top']; QueryLoader.overlay = $("&lt;div&gt;&lt;/div&gt;").appendTo($(QueryLoader.selectorPreload)); $(QueryLoader.overlay).addClass("QOverlay"); $(QueryLoader.overlay).css({ position: position, top: top, left: left, width: width + "px", height: height + "px" }); QueryLoader.loadBar = $("&lt;div&gt;&lt;/div&gt;").appendTo($(QueryLoader.overlay)); $(QueryLoader.loadBar).addClass("QLoader"); $(QueryLoader.loadBar).css({ position: "relative", top: "50%", width: "0%" }); }, animateLoader: function() { var perc = (100 / QueryLoader.doneStatus) * QueryLoader.doneNow; if (perc &gt; 99) { $(QueryLoader.loadBar).stop().animate({ width: perc + "%" }, 500, "linear", function() { QueryLoader.doneLoad(); }); } else { $(QueryLoader.loadBar).stop().animate({ width: perc + "%" }, 500, "linear", function() { }); } }, doneLoad: function() { //prevent IE from calling the fix clearTimeout(QueryLoader.ieTimeout); //determine the height of the preloader for the effect if (QueryLoader.selectorPreload == "body") { var height = $(window).height(); } else { var height = $(QueryLoader.selectorPreload).outerHeight(); } //The end animation, adjust to your likings $(QueryLoader.loadBar).animate({ height: height + "px", top: 0 }, 500, "linear", function() { $(QueryLoader.overlay).fadeOut(800); $(QueryLoader.preloader).remove(); }); } } </code></pre> <p>In my html file, I used following Javascript:</p> <pre><code>&lt;script type='text/javascript'&gt; QueryLoader.init(); &lt;/script&gt; </code></pre> <p>And css is as following:</p> <pre><code>.QOverlay { background-color: #000000; z-index: 9999; } .QLoader { background-color: #CCCCCC; height: 1px; } </code></pre> <p>I used this for simple example it works well. But when I used this for my site it is giving error in js file as following:</p> <blockquote> <p>TypeError: $(...).offset(...) is undefined</p> </blockquote> <pre><code>var left = $(QueryLoader.selectorPreload).offset()['left']; </code></pre> <p>So please can you help out from this issue: Thanks in advance..</p>
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    1. PTQuestion
    1. USrlemon
    1. USAnand Jaju
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      1. POTypeError using QueryLoader plugin
      1. This table or related slice is empty.
      1. VTUpMod
    1. COdont paste all the code just explain your problem in few words and give some code sample, best practice is setup a demo.
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      1. POTypeError using QueryLoader plugin
      1. USKonga Raju
    2. COOffset is a JQuery Method, so in the line `var left = $(QueryLoader.selectorPreload).offset()['left']` if offset is undefined, you cant access to left property. has included the jquery file? If you are include the jQuery File. `['left']` is better written in dot notation. And are you sure the target element exist before getting offset ? `$(QueryLoader.selectorPreload)` is the body element?
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      1. POTypeError using QueryLoader plugin
      1. USNatalia
 

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