The following values allow you to grab useful information about the page you’re viewing such as the current page’s pathname or url.
Complete List of Document Values
self.location.hash //Sets or retrieves the subsection of the href property that follows the number sign (#). self.location.host //Sets or retrieves the hostname and port number of the location or URL. self.location.hostname //Sets or retrieves the host name part of the location or URL. self.location.href //Sets or retrieves the entire URL as a string. self.location.pathname //Sets or retrieves the path and file name associated with a URL. self.location.port //Sets or retrieves the port number associated with a URL. self.location.protocol //Sets or retrieves the protocol portion of a URL. self.location.search //Sets or retrieves the substring of the href property that follows the question mark