JavaScript gets current URL root directory (path) _javascript tips

The main use of the Location object, containing information about the current URL, is a part of the Window object that can be accessed through the Window.location property.

Method One (Window.document.location.href/window.document.location.pathname)------------transferred from Network

function Getrootpath_web () {
  //get current URL, such as: Http://localhost:8083/uimcardprj/share/meun.jsp
  var curwwwpath = Window.document.location.href;
  Gets the directory after the host address, such as: Uimcardprj/share/meun.jsp
  var pathName = window.document.location.pathname;
  var pos = curwwwpath.indexof (pathName);
  Get host address, such as: http://localhost:8083
  var localhostpaht = curwwwpath.substring (0, POS);
  Get the project name with "/", such as:/uimcardprj
  var projectname = pathname.substring (0, Pathname.substr (1). IndexOf ('/') + 1);
  Return (localhostpaht + projectname);
}

Method Two (Window.location.pathname/window.location.protocol/window.location.host)

function getrootpath_dc () {
  var pathName = window.location.pathname.substring (1);
  var WebName = PathName = = "? ': pathname.substring (0, Pathname.indexof ('/'));
  if (WebName = = "") {return
    Window.location.protocol + '//' + window.location.host;
  }
  else {return
    Window.location.protocol + '//' + Window.location.host + '/' + webName;
  }
}}

Note:

1, the document implied is a Documentation object, window is implied by a Windows object, a window can have more than one document object.
So there is only one window.location.href under a window, but there may be multiple document.url, Document.location.href------------from the network

2, Window.location.href and document.location.href can be assigned value, and then jump to other pages, Document.url can only read or write------------transferred from the network

3, Location object detail information Reference W3school http://www.jb51.net/w3school/jsref/dom_obj_location.htm

Small series of cloud-dwelling communities supplement:

Exclude certain directories

var pathName = window.document.location.pathname;
var projectname = pathname.substring (1, PATHNAME.SUBSTR (1). IndexOf ('/') + 1);
var ad_projectlist = ',, Web,html5,css, ';
if (Ad_projectlist.indexof (', ' +projectname+ ', ') < 0) {
 alert ("web,html5,css several directory codes do not execute");
}

The above is the entire content of this article, I hope to give you a reference, but also hope that we support the cloud habitat community.