JavaScript中的查询字符串 [英] Query String in JavaScript

问题描述

通过使用 document.referrer ，我们将获得JavaScript中URL的所有引用，例如：

By using document.referrer we will get all the reference of URL in JavaScript, such as the following:

http://localhost/testwordpress/wp-admin/admin.php?page=thesis-options&upgraded=true

从这个输出中我们如何才能提取查询字符串部分：

From this output how can we extract the query string part only:

?page=thesis-options&upgraded=true

JavaScript中是否有任何方法？

Is there any method in JavaScript?

推荐答案

如果您只想从查询字符串中获取值，请使用以下函数：

If you are just looking to get the values from the query string I use the following function:

function getQuerystring(key)
{
  key = key.replace(/[\[]/,"\\\[").replace(/[\]]/,"\\\]");
  var regex = new RegExp("[\\?&]"+key+"=([^&#]*)");
  var qs = regex.exec(window.location.href);
  if(qs == null)
    return default_;
  else
    return qs[1];
}

只需传入您要查找的密钥并获取价值。
IE：getQueryString（'升级'）将返回true

Simply pass in the key you are looking for and get the value back. IE: getQueryString('upgraded') would return true

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