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- Uncaught ReferenceError: $ is not defined? 32 answers
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I have implemented some JavaScript on my site but I keep getting the following error messages:
我已经在我的站点上实现了一些JavaScript，但是我不断收到以下错误消息:
Uncaught ReferenceError: jQuery is not defined
未捕获的ReferenceError:未定义jQuery
and
和
Uncaught SyntaxError: Unexpected token <
未捕获的语法错误:意外令牌<
This is the JavaScript that I am using in the header.php:
这是我在header.php中使用的JavaScript:
<script type="text/javascript" src="/test/wp-content/themes/child/script/jquery.jcarousel.min.js"></script>
<script type="text/javascript" src="/test/wp-content/themes/child/script/jquery.scrollTo.js"></script>
<script type="text/javascript" src="/test/wp-content/themes/child/script/jquery.backgroundPosition.js"></script>
<script type="text/javascript" src="/test/wp-content/themes/child/script/scripts.js"></script>
<script type="text/javascript" src="/test/wp-content/themes/child/script/jquery.cycle.lite.js"></script>
<script type="text/javascript" src="/test/wp-content/themes/child/script/jquery.accordian.js"></script>
<script type="text/javascript">
jQuery(document).ready(function () {
jQuery('#contentGallery').cycle({
fx: 'fade' // choose your transition type, ex: fade, scrollUp, shuffle, etc...
});
});
</script>
</head>
<body <?php body_class(); ?>>
<div id="page" class="hfeed">
<header id="branding" role="banner">
<hgroup>
<h1 id="site-title"><span><a href="<?php echo esc_url( home_url( '/' ) ); ?>" title="<?php echo esc_attr( get_bloginfo( 'name', 'display' ) ); ?>" rel="home"><?php bloginfo( 'name' ); ?></a></span></h1>
<h2 id="site-description"><?php bloginfo( 'description' ); ?></h2>
</hgroup>
<?php
// Check to see if the header image has been removed
$header_image = get_header_image();
if ( ! empty( $header_image ) ) :
?>
<a href="<?php echo esc_url( home_url( '/' ) ); ?>">
<?php
// The header image
// Check if this is a post or page, if it has a thumbnail, and if it's a big one
if ( is_singular() &&
has_post_thumbnail( $post->ID ) &&
( /* $src, $width, $height */ $image = wp_get_attachment_image_src( get_post_thumbnail_id( $post->ID ), array( HEADER_IMAGE_WIDTH, HEADER_IMAGE_WIDTH ) ) ) &&
$image[1] >= HEADER_IMAGE_WIDTH ) :
// Houston, we have a new header image!
echo get_the_post_thumbnail( $post->ID, 'post-thumbnail' );
else : ?>
<img src="<?php header_image(); ?>" width="<?php echo HEADER_IMAGE_WIDTH; ?>" height="<?php echo HEADER_IMAGE_HEIGHT; ?>" alt="" />
<?php endif; // end check for featured image or standard header ?>
</a>
<?php endif; // end check for removed header image ?>
<nav id="access" role="navigation">
<div id="nav">
<ul>
<li class="end"><a href="#contact" id="navContact" class="goto_contact"></a></li>
<li><a href="#context" id="navContext" class="goto_context"></a></li>
<li><a href="#artScience" id="navArtScience" class="goto_artScience"></a></li>
<li><a href="#home" id="navHome" class="goto_home"></a></li>
</ul>
<div class="clear">
</div>
</div>
<div id="navPointer">
<div id="controlContainer">
<div id="pointer">
</div>
</div>
</div>
</div>
<div id="contentHolder">
<div id="contentGallery">
<img src="Images/Gallery/london.jpg" width="1200" height="550" alt="London" />
<img src="Images/Gallery/singapore.jpg" style="display: none;" width="1200" height="550"
alt="Singapore" />
<img src="Images/Gallery/geneva.jpg" style="display: none;" width="1200" height="550"
alt="Geneva" />
</div>
<div id="contentShadow">
</div>
<div id="content">
<div id="contentScroller">
<div id="home" class="page">
<div class="homeContent">
<span class="homeHeaderText">GMR</span>
<div class="clear">
</div>
<div class="homePageText">
<p> very long text 1
</p>
</div>
</div>
</div>
<div id="artScience" class="page">
<div class="pageContent">
<div id="artSciencePage">
<span class="headerText">About Us</span>
<div class="pageText">
<p>
Insert text here.
</p>
</div>
<table border="0" cellpadding="0" cellspacing="0" class="linkTable">
<tr>
<td valign="middle" height="100%">
<a href="#" id="theArtLnk" class="largeArrow">The Art</a>
</td>
<td valign="middle" height="100%">
<a href="#" id="theScienceLnk" class="largeArrow">The Science</a>
</td>
</tr>
</table>
</div>
<div id="theArtPage" class="closed">
<span class="headerText">The Art</span>
<div class="pageText">
<a href="#" class="acc_trigger">Sensitivity</a>
<div class="acc_container">
<p>very long text 2</p>
</div>
<div class="seperator">
</div>
<a href="#" class="acc_trigger">Creativity</a>
<div class="acc_container">
<p>very long text 3</p>
</div>
<div class="seperator">
</div>
<a href="#" class="acc_trigger">Intuition</a>
<div class="acc_container">
<p>very long text 4</p>
</div>
<div class="seperator">
</div>
<a href="#" class="acc_trigger">Judgment</a>
<div class="acc_container">
<p>very long text 5</p>
</div>
</div>
<a href="#" id="artToScienceLnk" class="largeArrow">The Science</a>
</div>
<div id="theSciencePage" class="closed">
<span class="headerText">The Science</span>
<div class="pageText">
<a href="#" class="acc_trigger_2">Methodology</a>
<div class="acc_container_2">
<p>very long text 6</p>
</div>
<div class="seperator">
</div>
<a href="#" class="acc_trigger_2">Research</a>
<div class="acc_container_2">
<p>very long text 7</p>
</div>
<div class="seperator">
</div>
<a href="#" class="acc_trigger_2">Team Approach</a>
<div class="acc_container_2">
<p>very long text 8</p>
</div>
<div class="seperator">
</div>
<a href="#" class="acc_trigger_2">Sharing Information</a>
<div class="acc_container_2">
<p>very long text 9</p>
</div>
</div>
<a href="#" id="scienceToArtLnk" class="largeArrow">The Art</a>
</div>
</div>
</div>
<div id="context" class="page">
<div class="pageContent">
<span class="headerText">Expertise</span>
<div class="pageText">
<a class="acc_trigger_3" href="#">Expertise</a>
<div class="acc_container">
<p>very long text 10</p>
</div>
<div class="seperator">
</div>
<a class="acc_trigger_3" href="#">Business Context</a>
<div class="acc_container">
<p>very long text 11</p>
</div>
<div class="seperator">
</div>
<a class="acc_trigger_3" href="#">Cultural Context</a>
<div class="acc_container">
<p>very long text 12</p>
</div>
<div class="seperator">
</div>
<a class="acc_trigger_3" href="#">Candidate Context</a>
<div class="acc_container">
<p>very long text 13</p>
</div>
<div class="seperator">
</div>
<a class="acc_trigger_3" href="#">Financial Context</a>
<div class="acc_container">
<p>very long text 14</p>
</div>
<div class="seperator">
</div>
<a class="acc_trigger_3" href="#">Service Context </a>
<div class="acc_container">
<p>very long text 15</p>
</div>
</div>
</div>
</div>
<div id="contact" class="page">
<div class="pageContent">
<span class="headerText">Contact</span>
<div class="pageText">
<h2>
Tel: +44(0)1234 567 890</h2>
<h3>
Email: <a href="mailto:info@info">info@info</a></h3>
</div>
</div>
</div>
</div>
</div>
<h3 class="assistive-text"><?php _e( 'Main menu', 'twentyeleven' ); ?></h3>
<?php /* Allow screen readers / text browsers to skip the navigation menu and get right to the good stuff. */ ?>
<div class="skip-link"><a class="assistive-text" href="#content" title="<?php esc_attr_e( 'Skip to primary content', 'twentyeleven' ); ?>"><?php _e( 'Skip to primary content', 'twentyeleven' ); ?></a></div>
<div class="skip-link"><a class="assistive-text" href="#secondary" title="<?php esc_attr_e( 'Skip to secondary content', 'twentyeleven' ); ?>"><?php _e( 'Skip to secondary content', 'twentyeleven' ); ?></a></div>
<?php /* Our navigation menu. If one isn't filled out, wp_nav_menu falls back to wp_page_menu. The menu assiged to the primary position is the one used. If none is assigned, the menu with the lowest ID is used. */ ?>
</nav><!-- #access -->
</header><!-- #branding -->
This is the code I am using in the footer.php:
这是我在footer.php中使用的代码:
<div id="footerNav">
<ul>
<li class="start"><a href="#home" class="goto_home">Home</a></li>
<li><a href="#artScience" class="goto_artScience">About Us</a></li>
<li><a href="#context" class="goto_context">Approach</a></li>
<li><a href="#contact" class="goto_contact">Expertise</a></li>
</ul>
</div>
5 个解决方案
#1
153
jQuery needs to be the first script you import. The first script on your page
jQuery必须是您导入的第一个脚本。页面上的第一个脚本
<script type="text/javascript" src="/test/wp-content/themes/child/script/jquery.jcarousel.min.js"></script>
appears to be a jQuery plugin, which is likely generating an error since jQuery hasn't been loaded on the page yet.
似乎是一个jQuery插件，它可能会产生一个错误，因为jQuery还没有加载到页面上。
#2
10
you need to put it after wp_head(); Because that loads your jQuery and you need to load jQuery first and then your js
需要把它放在wp_head()后面;因为这会加载jQuery，你需要先加载jQuery，然后再加载js
#3
3
In my case, the error occurred because I was using the wrong version of jquery.
在我的例子中，出现错误是因为我使用了错误的jquery版本。
<script src="http://code.jquery.com/jquery-migrate-1.2.1.min.js"></script>
I changed it to:
我把它改为:
<script src="http://code.jquery.com/jquery-1.11.3.min.js"></script>
#4
2
For one, you don't seem to be including jQuery itself in the header but only a bunch of plugins. As for the '<' error, it's impossible to tell without seeing the generated HTML.
首先，您似乎没有在标题中包含jQuery本身，而只是一堆插件。至于“<”错误，没有看到生成的HTML是不可能判断出来的。
#5
0
set this jquery min js
设置此jquery min js。
script src="http://code.jquery.com/jquery-1.10.1.min.js"
in wp-admin/admin-header.php
在wp-admin / admin-header.php
#1
153
jQuery needs to be the first script you import. The first script on your page
jQuery必须是您导入的第一个脚本。页面上的第一个脚本
<script type="text/javascript" src="/test/wp-content/themes/child/script/jquery.jcarousel.min.js"></script>
appears to be a jQuery plugin, which is likely generating an error since jQuery hasn't been loaded on the page yet.
似乎是一个jQuery插件，它可能会产生一个错误，因为jQuery还没有加载到页面上。
#2
10
you need to put it after wp_head(); Because that loads your jQuery and you need to load jQuery first and then your js
需要把它放在wp_head()后面;因为这会加载jQuery，你需要先加载jQuery，然后再加载js
#3
3
In my case, the error occurred because I was using the wrong version of jquery.
在我的例子中，出现错误是因为我使用了错误的jquery版本。
<script src="http://code.jquery.com/jquery-migrate-1.2.1.min.js"></script>
I changed it to:
我把它改为:
<script src="http://code.jquery.com/jquery-1.11.3.min.js"></script>
#4
2
For one, you don't seem to be including jQuery itself in the header but only a bunch of plugins. As for the '<' error, it's impossible to tell without seeing the generated HTML.
首先，您似乎没有在标题中包含jQuery本身，而只是一堆插件。至于“<”错误，没有看到生成的HTML是不可能判断出来的。
#5
0
set this jquery min js
设置此jquery min js。
script src="http://code.jquery.com/jquery-1.10.1.min.js"
in wp-admin/admin-header.php
在wp-admin / admin-header.php