按名称读取JavaScript Cookie [英] Read a javascript cookie by name

问题描述

我已使用

设置了Cookie。

  document.cookie = 
'MYBIGCOOKIE ='+ value + 
'; expires ='+ now.toGMTString（）+ 
'; path = /'; 
  

现在这个网站上设置了5到10个Cookie，是否有办法检查值

  if（document.cookie.MYBIGCOOKIE =='1'）{
 alert it is 1'）
} 
  

解决方案

，Javascript的cookie语法是没有那么好的那样。

当你尝试阅读 document.cookie ，你会得到一个包含所有cookie的字符串。您必须解析字符串，用分号; 字符分隔。而不是自己写，网上有很多版本可用。我最喜欢的是 quirksmode.org上的。这会给你 createCookie ， readCookie 和 deleteCookie / p>

I have set a cookie using

document.cookie = 
    'MYBIGCOOKIE=' + value + 
    '; expires=' + now.toGMTString() + 
    '; path=/';

Now there are between 5 and 10 cookies set on this site, is there a way to check the value ofthis cookie by name.

if (document.cookie.MYBIGCOOKIE == '1') {
    alert('it is 1')
}

解决方案

Unfortunately, Javascript's cookie syntax is nowhere near as nice as that. In fact, in my opinion, it's one of the worst designed parts.

When you try to read document.cookie, you get a string containing all the cookies set. You have to parse the string, separating by the semicolon ; character. Rather than writing this yourself, there are plenty of versions available on the web. My favourite is the one at quirksmode.org. This gives you createCookie, readCookie and deleteCookie functions.

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