JS get URL parameter value

Today encountered in a page to get another page URL passed over the parameters, at first instinctively thought of using split ("?") Such a step-by-step decomposition of the required parameters.

After thinking about it, there will certainly be a more simple way! So I found two very simple and practical ways to do this online, mark.

Method One: The regular analysis method

function getquerystring (name) {
var reg = new RegExp ("(^|&)" + name + "= ([^&]*) (&|$)", "I");
var r = window.location.search.substr (1). Match (REG);
if (r! = null) return unescape (r[2]); return null;
}

This is called:

Alert (getquerystring ("parameter name 1"));

Alert (getquerystring ("parameter Name 2"));

Alert (getquerystring ("parameter name 3"));

Method Two:

<span style="font-size: 16px;"><Script language="javascript">functionGetRequest() {   varurl = location.search; //获取url中"?"符后的字串   var theRequest = newObject();   if(url.indexOf("?") != -1) {      varstr = url.substr(1);      strs = str.split("&");      for(vari = 0; i < strs.length; i ++) {         theRequest[strs[i].split("=")[0]]=unescape(strs[i].split("=")[1]);      }   }   returntheRequest;}</Script></span>

This is called:

<script language= "JavaScript" >
var Request = new Object ();
Request = Getrequest ();
var parameter 1, Parameter 2, parameter 3, parameter n;
Parameter 1 = request[' parameter 1 '];
Parameter 2 = request[' parameter 2 '];
Parameter 3 = request[' parameter 3 '];
Parameter n = request[' parameter n '];
</Script> function GetRequest() {      var url = location.search; //获取url中"?"符后的字串      var theRequest = new Object();      if (url.indexOf( "?" ) != -1) {          var str = url.substr(1);          if (str.indexOf( "&" ) != -1) {              strs = str.split( "&" );              for ( var i = 0; i < strs.length; i++) {                  theRequest[strs[i].split( "=" )[0]] = unescape(strs[i].split( "=" )[1]);              }          } else {              theRequest[str.split( "=" )[0]] = unescape(str.split( "=" )[1]);          }      }      return theRequest; }

JS get URL parameter value