print sub code

[Tech list]

Let's say I have a module XYZ with a sub in it call ABC.  I'd like to  
print the source code of XYZ::ABC.


My reason for this is I accidentally overwrote a module with an older  
version, but I still have httpd running which has it loaded in memory.


--
To unsubscribe, e-mail: beginners-unsubscr...@perl.org
For additional commands, e-mail: beginners-h...@perl.org
http://learn.perl.org/

items in array

[Tech list]

what is the correct way to get the number of items in an array?

I used to use $#array


--
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
http://learn.perl.org/

Re: items in array

[Tech list]

Is $#array deprecated or not?

On May 14, 2008, at 5:35 PM, Dr.Ruud wrote:


"Li, Jialin" schreef:

On Wed, May 14, 2008 at 4:01 PM, Tech list
<[EMAIL PROTECTED]> wrote:


what is the correct way to get the number of items in an array?

I used to use $#array


--
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
http://learn.perl.org/





$#array is the index of the last item, so the number should be
$#array + 1, or
scalar @array


Please read perlvar about $[. Normally it is 0, but you can set it  
to a

different value, like -3 or 27.

The $#array is the last index of @array, so $array[$#array] is
equivalent to $array[-1].

The number of items in an array is returned by @array in scalar  
context,

examples:

   scalar(@array)

   (0+ @array)

   if (0 < @array) { ... }

   if (@array) { ... }

--
Affijn, Ruud

"Gewoon is een tijger."


--
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
http://learn.perl.org/





--
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
http://learn.perl.org/