In the meantime Javascript came a long way with the new JQuery language so I thought I would take a crack at it.
So I found this site http://docs.jquery.com/How_jQuery_Works and started to work on the example and I immediately discovered something that I am sure is understandable, but I don't understand how it works.
The example given is this:
<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <title>jQuery demo</title> </head> <body> <a href="http://jquery.com/">jQuery</a> <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.5/jquery.min.js"></script> <script> $(document).ready(function(){ $("a").click(function(event){ alert("As you can see, the link no longer took you to jquery.com"); event.preventDefault(); }); }); </script> </body> </html>
Which worked but I immediately wanted to refactor those anonymous functions to make it more readable so I created this:
function ClickIt()
{
$("a").click(AlertIt(event));
}
function AlertIt(event)
{
alert("As you can see, the link no longer took you to jquery.com");
event.preventDefault();
}
$(document).ready(ClickIt());
The problem was the when I ran the new version the "event" object passed into the AlertIt(event) was null. Odd, so after much playing around I finally discovered that I needed to call AlertIt with no paramaters and it worked. So why is that ? Feel free to comment.
