Page 136 - DCAP202_Fundamentals of Web Programming

Unit 10: Browser Objects

The following JavaScript code may be used to identify the source of the URL. Notes
switch (window.location.protocol)
{
case “http:”:
document.write(“From Web<BR>\n”)
break
case “file:”:
document.write(“From Local computer<BR>\n”)
break
default:
document.write(“Unknown Source<BR>\n”)
break
}
 search - The URL query string section. This is the section after and including the question
mark.

 target - The URL link’s target name.

Task Analyse the use of Location objects.

10.4.2 Location Objects – Methods

The following method are used in location objects:

 reload() - The current window document is reloaded. If a value of true is passed to the
reload function, the reload is forced to do an HTTP GET of the document.

Notes This is not normally done but is useful when you think the server contents may be
different from your cache.
 replace(URL) - Requires a URL as a parameter. It loads the document at the URL on top of
the current document.

Did u know? A new entry is not placed in the history object.
Self Assessment

Fill in the blanks:

10. The JavaScript ........................... is a property of the window object.
11. ........................... is the part of the URL that is used to point to point to a particular part of a
page where a named anchor is.
12. ........................... property specifies the URL hostname and port.

LOVELY PROFESSIONAL UNIVERSITY 129