Javascript 错误：'jQuery 未定义'
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Error: 'jQuery is not defined'
提问by michele
I have written a script with jQuery. It works with Firefox and GoogleChrome. Only with IE I have this error returned:
我用 jQuery 编写了一个脚本。它适用于 Firefox 和 GoogleChrome。只有在 IE 中，我才会返回此错误：
'jQuery' is not defined jquery-ui-1.8.4.custom.min.js, Row 10 Character 1
'jQuery' 未定义 jquery-ui-1.8.4.custom.min.js, Row 10 Character 1
This is the head of my page:
这是我页面的头部：
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Contattaci - TheItalianBrand.com</title>
<script type="text/javascript" src="lib/jquery.js"></script>
<script type="text/javascript" src="lib/js/jquery-ui-1.8.4.custom.min.js"></script>
<link type="text/css" href="lib/css/smoothness/jquery-ui-1.8.4.custom.css" rel="stylesheet" />
<script type="application/javascript">
$(function(){
$('#dialog_link, ul#icons li').hover(
function() { $(this).addClass('ui-state-hover'); },
function() { $(this).removeClass('ui-state-hover'); }
);
$('input').change(function() {
validate();
});
$('input').keydown(function() {
validate();
});
$('textarea').change(function() {
validate();
});
$('textarea').keydown(function() {
validate();
});
});
</script>
</head>
What can I do?
我能做什么？
采纳答案by vol7ron
Don't use
application/javascript, change totext/javascriptCheck the path of jquery
is your jquery inlib/js/, or justlib/?Make sure your lib directory is relative to the calling page
You may have meant/lib/jquery.js(the slash in the beginning makes a difference)
不使用
application/javascript，改为text/javascript检查jquery的路径
是你的jquery在lib/js/，还是只是lib/？确保你的 lib 目录是相对于调用页面
你的意思/lib/jquery.js（开头的斜杠有所不同）
回答by Pointy
You're importing the jQuery UI library from lib/js, but jQuery itself from lib. I suspect that your copy of the jQuery library is also in lib/jsand that you're just not getting it due to that incorrect path. Of course, that would mean that it's not actually working in Firefox or Chrome or any other browser, but it could be that they're just less strident about error reporting so you're not noticing.
您正在从 导入 jQuery UI 库lib/js，但 jQuery 本身是从lib. 我怀疑您的 jQuery 库副本也在其中，lib/js并且由于路径不正确而您没有得到它。当然，这意味着它实际上不适用于 Firefox 或 Chrome 或任何其他浏览器，但也可能是它们对错误报告不那么尖锐，因此您没有注意到。
The Firefox "TamperData" plugin is really handy for tracking HTTP requests on page loads.
Firefox 的“TamperData”插件对于跟踪页面加载时的 HTTP 请求非常方便。
回答by Sagar
You have to check sequence of added jQuery, and adding jQuery library in proper sequence
您必须检查添加的 jQuery 的顺序，并按正确的顺序添加 jQuery 库
