[英]how to fix 'jQuery is not defined' error in jquery library?
Rails fix : make sure <%= javascript_include_tag "application" %>
is before any script loading so that jquery gets loaded first. Rails修复 :确保
<%= javascript_include_tag "application" %>
在任何脚本加载之前,以便首先加载jquery。
This seems really odd. 这看起来很奇怪。 When I load my page I get 2 js errors (in Chrome):
当我加载页面时,我得到2个js错误(在Chrome中):
jquery-ui.min.js:17 Uncaught ReferenceError: jQuery is not defined
jquery.blockUI.js:499 Uncaught ReferenceError: jQuery is not defined
Ok, that seems... odd. 好吧,这似乎......很奇怪。 So I look at my script includes.
所以我看看我的脚本包括。 My first two script includes on my page:
我的前两个脚本包括在我的页面上:
<script src="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.9/jquery-ui.min.js"></script>
<script src="http://bainternet-js-cdn.googlecode.com/svn/trunk/js/jQuery%20BlockUI%20Plugin/2.39/jquery.blockUI.js"></script>
So the first include is getting a javascript error related to itself? 所以第一个包括获取与自身相关的javascript错误? That seems unlikely.
这似乎不太可能。 This looks like a case of a misdirection error (the real error is somewhere else).
这看起来像是误导错误的情况(真正的错误在其他地方)。 What can I do to fix this?
我该怎么做才能解决这个问题? JS errors on pages look a little unprofessional (at least to other devs).
页面上的JS错误看起来有点不专业(至少对其他开发者而言)。 I wasn't getting this error the other day -- even reverted the code to make sure.
前几天我没有收到此错误 - 甚至还原了代码以确保。
your 你的
<script type="text/javascript" src="jquery.js"></script>
needs to be called before jquery ui < script > tags. 需要在jquery ui <script>标记之前调用。
Should appear like this: 应该是这样的:
<script type="text/javascript" src="jquery.js"></script> <-- put me here -->
<script src="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.9/jquery-ui.min.js"></script>
<script src="http://bainternet-js-cdn.googlecode.com/svn/trunk/js/jQuery%20BlockUI%20Plugin/2.39/jquery.blockUI.js"></script>
jQuery UI doesn't include the standard jQuery library by default. 默认情况下,jQuery UI不包含标准jQuery库。 You'll need to add a
<script>
tag to include the standard jQuery library before including any plugins that use it. 在包含使用它的任何插件之前,您需要添加
<script>
标记以包含标准jQuery库。
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