|go ahead... be a heretic|
Re: Web Browser File Upload Progress Bar in Perl w/AJAXby skx (Parson)
|on Dec 11, 2006 at 06:25 UTC||Need Help??|
is this: $q = CGI->new(\&hook [,$data [,$use_tempfile]]); valid Perl?
Although it is not literal perl. The first argument "\&hook" is a reference to the subroutine "hook".
The second argument is optional, and thus enclosed in [ and ] characters, and similarly the last argument is optional.
So you could call it in three ways:
Under Unix-like systems there is a convention that optional arguments are enclosed in "[" and "]" characters. For a simple example of that try readng "man ls" which has the following output: