JS gets the values in the page URL

First, through the window.location to obtain the parameters

1. Get the full URL of the page

url = window.location.href;

2. Get the domain name of the page

host = Window.location.host;

Host2=document.domain;

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Application Scenario: page jump, development environment and test environment domain name is different, so need to dynamically get the URL after stitching jump.

Second, JavaScript is getting the parameters in the URL 1, through the substr with split get

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Regular gets the parameter     function url_request (strName) in the URL  {    var  strhref = document.location.tostring ();    var intpos =  Strhref.indexof ("?");     var strright = strhref.substr (intpos + 1);  //========== Get to the right of the parameter section     var arrtmp = strright.split ("&");  //============= & Split Group     for  (var i = 0; i < arrtmp.length;  i++)  //=========== Loop array     {        var  dintpos = arrtmp[i].indexof ("=");        var  Paraname = arrtmp[i].substr (0, dintpos);         var  paradata = arrtmp[i].substr (dintpos + 1);         if (Paraname.touppercase ()  == strname.touppercase ())  {             return paraData;        }     }    return  "";     }

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Use:

var pbtradeid=url_request ("TradeID");

2. Get "update20170503" through split

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Function getquerystring (Str, key)  {    if (str)  {         var querystring = str.split ('? ') [1] | |   ';         var arr = querystring.split (' & ')  | |  [];        for (var i = 0; i<arr.length;  i++)  {            var keystring  = decodeuricomponent (arr[i].split (' = ') [0]);             var valuestring = decodeuricomponent (arr[i].split (' = ') [1]);             if (key === keystring)  {                 return valueString;             }        }         return;    } else {         return;    }}getquerystring (location.search,  ' pageId ');

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JS gets the values in the page URL