是！document.cookie可靠吗？ [英] Is !document.cookie reliable?

问题描述

我想知道使用下列Javascript代码是否可靠：

I'm wondering if using the following Javascript code is reliable:

if (!document.cookie) {
    alert('Cookies are disabled.');
}

我在IE，Firefox和Chrome上测试过，您禁用cookie，document.cookie对象变得不可用。有没有人有这种方法的工作/不工作的经验？

I've tested this in IE, Firefox and Chrome and it seems that when you disabled cookies, the document.cookie object becomes unavailable. Does anyone have any experience with this method working/not working?

很多感谢

Stephen

Many Thanks
Stephen

其他

我很清楚，此方法需要在客户端上启用JavaScript。我也知道其他服务器端/ JavaScript解决方案。

I'm well aware that this method requires JavaScript to be enabled on the client. I'm also aware of other server-side/JavaScript solutions. Please can the discussion remain on topic.

推荐答案

在这种情况下，唯一可靠的方法是检查Cookie是否禁用，你不介意的JavaScript问题，需要一个客户端解决方案）是使用一个测试cookie的set函数，然后一个get函数读取它。

The only reliable way to me in this scenario (check if cookies are disabled, you don't mind about the javascript issues, and need a client-side solution) is to use a set function for a test cookie, then a get function to read it back. If the test cookie can't be read back, cookies are off.

您可以编写自己的实现，从 quirksmode ，请使用 jQuery插件或开箱即用的解决方案。

You can write your own implementation of it reading a great resource from quirksmode, use a jQuery plugin or an out-of-box solution.

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