问题描述
什么可能是下面的可能原因?
What might be the possible cause of the following?
我使用的是自动完成的脚本与下列code:
I am using an autocomplete script with the following code:
if (that.currentAjaxRequest !== null) {
that.currentAjaxRequest.abort();
}
that.currentAjaxRequest = $.get(query_string,
function(data) {
that.doStuff(data);
}
);
剧本是节流。因此,有大约300 NBSP延迟;每次键击后毫秒之前的请求被发送
The script is throttled. So there is a delay of about 300 ms after every keystroke before a request gets sent.
这在我的测试环境工作得很好。不过,我运行到环境中生活的情况下,定期,如果请求得到发送接近海誓山盟(约以往任何时候都300 NBSP; MS),每过一段时间中的最新要求回来空。也就是说,数据将是未定义。为什么会这样呢?
This works just fine in my test environment. However, I'm running into a situation in the live environment where, periodically, if requests get sent close to eachother (about ever 300 ms), every once in awhile the latest request comes back empty. That is to say, data will be "undefined". Why might this be?
推荐答案
这似乎是一个 1.4中介绍:当手动中止Ajax调用,jQuery将调用函数的成功与一个空字符串,而不是误差函数
This seems to be a jQuery bug introduced in 1.4: When manually aborting an ajax call, jQuery will call the success function with an empty string instead of the error function.
您可以解决此通过检查 xhr.status
在回调:
You can work around this by checking xhr.status
in your callback:
function(data, textStatus, xhr) {
if (xhr.status) {
//a successful call
}
else {
//an aborted call
}
}
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