未捕获的ReferenceError：foobar的未定义（匿名函数） [英] Uncaught ReferenceError:foobar is not defined (anonymous function)
问题描述
我有这个js一些领域提供文件说 foobar.com
I have this js file serving from some domain say foobar.com
at http://foobar.com/static/js/main.js:
$(document).ready(function() {
function foobar(bar){
$.ajax({
url: "/site/foo/",
data: {'foo':bar},
dataType: "jsonp",
crossdomain: !0,
success: function (data) {
alert(data);
},
error: function () {
}
})
}
});
在 barfoo.com 上的一些URL，我有这样的事情：
On barfoo.com on some url, I have something like this:
<script src='http://foobar.com/static/js/main.js' type='text/javascript'></script>
<script type='text/javascript'>foobar('123456')</script>
当我打的网址：它说
Uncaught ReferenceError:foobar is not defined (anonymous function)
如何从其他域访问功能？
How to access function from other domains?
推荐答案
您已经定义了foobar的（）内的准备就绪的处理程序。因此它的外它在该函数中的局部变量，和不可见。
You've defined "foobar()" inside the "ready" handler. It's therefore a local variable in that function, and invisible outside it.
您可以把它添加到准备处理程序结束：
You could add this to the end of the "ready" handler:
window['foobar'] = foobar;
，然后它会在全球是可见的。
and then it'd be visible globally.
顺便说一句，这是东西可以咬的jsfiddle ，因为它（默认情况下），将包装的负荷code处理器。因此，如果你复制/从包含在JavaScript文件粘贴到＆LT; HEAD＆GT; ，一个功能，这将是全球在这方面最终没有全球性的小提琴
By the way this is something that can bite at jsfiddle because it (by default) will wrap code in a "load" handler. Thus, if you copy/paste from a JavaScript file included in the <head>, a function that would be global in that context ends up not global in the fiddle.
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