jsFiddle显示正确，但一旦在本地运行就不起作用(Javascript）
jsFiddle displaying properly, but once ran locally doesn't work (Javascript)
我有在jsFiddle中工作的代码，但是一旦你在本地运行它，它就不起作用了。
- js小提琴
- 当地
导致此代码工作的是jsFiddle，而不是本地？本地代码只不过是jsFiddle中内容的精确复制和粘贴。
干杯！
在本地运行的代码：
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Blob.net</title>
<style>
#container {
background-color:#CCC;
margin-top: 100px;
margin-right: auto;
margin-bottom: 100px;
margin-left: auto;
width: 1200px;
height: auto;
box-shadow: 0px 0px 10px 2px rgba(119, 119, 119, 0.75);
-moz-box-shadow: 0px 0px 10px 2px rgba(119, 119, 119, 0.75);
-webkit-box-shadow: 0px 0px 10px 2px rgba(119, 119, 119, 0.75);
}
/* HEADER CSS */
#header {
width: 100%;
height: 75px;
background-color: #FC6;
padding-top: 2px;
padding-bottom: 10px;
}
#header_text h1{
font-family: "Arial Black", Gadget, sans-serif;
margin-left: 32%;
}
/* CONTENT CSS */
#left {
width: 800px;
height: auto;
background-color: #CF9;
float: left;
}
#left_inside {
padding-left: 15px;
padding-right: 15px;
margin-bottom: 30px;
}
#left p {
font-family: "Trebuchet MS", Arial, Helvetica, sans-serif;
}
/* SIDEBAR CSS */
#right {
width: 400px;
height: auto;
background-color:#6CF;
float: right;
}
.elements {
border: 1px solid #000;
height: auto;
width: 400px;
min-height: 180px;
}
/* NAV BAR STYLES */
#right ul {
list-style-type: none;
margin-left: 25%;
}
#right ul li{
margin-top: 30px;
}
#right ul li a:link{
text-decoration: none;
font-family: "Trebuchet MS", Arial, Helvetica, sans-serif;
font-size: 18px;
color: #000;
}
#right ul li a:hover{
color: #CCC;
}
/* ROWS */
.row1 {
background-color:#930;
}
.row2 {
background-color: #633;
}
.row3 {
background-color: #C66;
}
.row4 {
background-color: #96F;
}
.row5 {
background-color: #FF0;
}
/* END SIDEBAR CSS */
.clear {
clear: both;
}
/* MAKE SIDE BAR STICKY*/
.stick {
position: fixed;
bottom: 0;
}
</style>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.8/jquery.min.js"></script>
<script>
var initialpos=$('#right').offset();
$('#container').css('max-height',$('#container').height()+'px')
var set=0;
$(window).scroll(function(e){
var currPos=document.getElementById('right').getBoundingClientRect();
var windowScrolled=$(window).scrollTop();
var containerBottom=$('#container').height()+$('#container').offset().top;
var windowScrolledafterRight = $(window).scrollTop()+$('#right').height();
if(windowScrolled>initialpos.top && containerBottom>windowScrolledafterRight){
$('#right').css({'margin-top':$(window).scrollTop()-initialpos.top});
set=1;
}
if(containerBottom<windowScrolledafterRight)
{
$('#right').css({'margin-top':$('#container').height()- $('#header').height()-10-$('#right').height()});
}
if(windowScrolled<initialpos.top)
{
$('#right').css({'margin-top':'0'});
}
})
</script>
</head>
<body>
<!-- MAIN CONTAINER -->
<div id="container">
<!-- HEADER -->
<div id="header">
<div id="header_text">
<h1>This is a fancy header</h1>
</div>
</div>
<!-- END HEADER -->
<!-- MAIN CONTENT -->
<div id="left">
<div id="left_inside">
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Leggings bespoke narwhal Williamsburg American Apparel stumptown viral, paleo umami freegan swag.</p><p>Helvetica kitsch 3 wolf moon Odd Future organic, food truck Terry Richardson fixie shabby chic small batch four loko hoodie YOLO forage. XOXO hoodie organic, Bushwick banh mi cray Tonx scenester deep v typewriter ennui bitters fanny pack art party butcher. Swag semiotics aesthetic tofu try-hard. Hoodie food truck flannel church-key, next level try-hard +1 aesthetic wayfarers chia actually keffiyeh Neutra tattooed. Kogi bitters cred Pinterest. Pitchfork four loko banh mi lomo drinking vinegar art party, iPhone roof party raw denim Echo Park kogi 90's asymmetrical. Authentic ethnic bitters, cardigan polaroid stumptown DIY PBR&B Brooklyn ennui street art.</p><p>Food truck chia 3 wolf moon fingerstache umami. Messenger bag kitsch art party, Banksy Williamsburg cornhole forage Godard retro Cosby sweater cray jean shorts Neutra. Lo-fi mlkshk gastropub, fanny pack tattooed Banksy before they sold out PBR. Deep v tote bag mumblecore, art party semiotics Thundercats twee 90's cred Etsy you probably haven't heard of them. Polaroid food truck banh mi, cliche YOLO DIY vegan ugh. Craft beer freegan vegan, chambray bespoke mlkshk typewriter hella lo-fi dreamcatcher Thundercats shabby chic mumblecore. Banh mi XOXO Echo Park locavore, Tonx Terry Richardson pork belly keffiyeh tote bag fashion axe iPhone.</p><p>Banjo umami direct trade irony, pork belly squid cornhole 8-bit shabby chic Etsy. DIY Vice tousled kale chips High Life. Lomo PBR polaroid Tonx, whatever Marfa VHS chia street art. Paleo cred you probably haven't heard of them, messenger bag Helvetica disrupt +1. Church-key bicycle rights locavore, cardigan chillwave messenger bag ethical. Gluten-free roof party kogi fingerstache fixie freegan. Post-ironic ennui disrupt distillery.</p><p>Pickled Brooklyn chia, chillwave fanny pack wayfarers tofu asymmetrical. Street art mlkshk flannel, single-origin coffee PBR&B semiotics pork belly High Life butcher PBR chambray kogi freegan farm-to-table. Wes Anderson vinyl sartorial ethnic ethical, 8-bit cornhole umami hella fap asymmetrical. Neutra hoodie messenger bag PBR&B. Art party next level small batch letterpress, iPhone hoodie dreamcatcher mlkshk whatever pickled pop-up. Pour-over biodiesel High Life, cray cred Blue Bottle Pitchfork YOLO. Chia dreamcatcher lo-fi Schlitz, gentrify scenester tofu Brooklyn.</p>
</div>
</div>
<!-- END MAIN CONTENT -->
<!-- SIDEBAR -->
<div id="right">
<div id="anchor">
<div class="elements row1">
<ul>
<li><a href="#">Home</a></li>
<li><a href="#">About</a></li>
<li><a href="#">Contact Us</a></li>
<li><a href="#">Photos</a></li>
</ul>
</div>
<div class="elements row2">
</div>
<div class="elements row3">
</div>
<div class="elements row4">
</div>
<div class="elements row5">
</div>
</div>
</div>
<!-- END SIDEBAR -->
<div class="clear"></div>
</div><!-- END MAIN CONTAINER -->
</body>
</html>
在尝试选择元素之前，必须确保元素存在。您可以通过以下三种方式之一执行此操作：
在其目标元素之后包含代码（通常在结束正文标记之前）
$(document).ready(function(){...})让代码在 DOMContentLoaded 事件之后执行
$(window).load(function(){...})让代码在所有资源完全加载后执行（称为窗口加载事件）
问题是 jquery.js 文件未加载。这就是我修复我的方式。下载文件，将脚本包含在您的 html 文档中。例：
<script type='text/javascript' src='jquery-1.9.1.js'></script>
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