获取URL查询字符串参数的Javascript函数

Posted 2021-02-26

Here is a small function [[lobo235](http://www.netlobo.com/javascript_tooltips.html "Javascript Tool-tips")] wrote that will parse the window.location.href value and return the value for the parameter you specify. It does this using javascript's built in regular expressions.

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