使用 JavaScript 识别独特的点击
您能否建议一种使用 JavaScript 识别唯一用户的有效方法（例如计算发送到服务器端的哈希值）？
编辑：重点是我不能“侵入”浏览器（例如发送cookie）。 IP 也不是一个选择。 它必须是客户端解决方案（因此是 JavaScript）。
Could you suggest an efficient way to identify a unique user with JavaScript (e.g. calculate a hash to send to the server-side)?
EDIT: The point is that I can't "intrude" into the browser (e.g. send cookies). And IPs are also not the option. And it has to be a client-side solution (therefore JavaScript).
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此问题的常见解决方案是在服务器端计算唯一 ID，然后将 cookie 推送到包含该 ID 的浏览器（首先检查该 cookie 是否已为当前浏览器定义）。
广告网络大量使用该技术来收集网络用户的人口统计信息。
编辑顺便说一句，“唯一ID”可以只是与用户关联的第一个会话ID。 许多框架可以为您提供这一服务。
A common solution to this problem is to calculate a unique ID on the server side, then push a cookie to the browser containing that ID (checking, first, to see whether that cookie has already been defined for the current browser).
Advertising networks use that technique fairly heavily to gather demographic information on web users.
EDIT By the way, the "unique ID" can simply be the first session ID associated with the user. Many frameworks can supply that for you.
我赞成布莱恩的回答，但我想补充一点，问题是识别唯一用户。 坚持用 Javascript 来完成——除非有服务器级别的参与，否则它在页面级别之外是无状态的——并不是一种富有成效的方法。
I upvoted Brian's answer but I'd like to add that the problem is identifying a unique user. Insisting that it be done in Javascript - which is stateless beyond the page level unless there is participation at the server level - just isn't a fruitful approach.
“唯一”字符串可以是用户的 IP 地址，但请注意，例如，公司防火墙后面的不同用户可能会显示相同的 IP。
用户的IP地址已经在服务器级别可用，你不需要js。
A "unique" string could be the user's IP address, but beware that different users behind a corporate firewall, for example, could appear with the same IP.
The IP address of user is already available at server level, you don't need js.