JS gets the parameters of the URL

Online looking for a piece of code, very useful, it is difficult to find the original author, but thank you very much!
/** * Gets the current URL parameter value * @param name Parameter name * @return parameter value */function Geturlparam (name) {var reg = new RegExp ("(^|&)" + Nam E + "= ([^&]*) (&|$)", "I"), var r = window.location.search.substr (1). Match (REG), if (r! = null) return unescape (r[2 ]); return null; }
Note: No matter how many parameters can be obtained, just pass the correct and consistent parameter names such as:
url:http://xxx.aspx?requestid=15&number=2015121501
You want to get RequestID, call the function Geturlparam (RequestID);
To get number, call the function Geturlparam (number);

JS gets the parameters of the URL