Beefy Boxes and Bandwidth Generously Provided by pair Networks
No such thing as a small change

Re: Lexical vs. Package Variables (With a little local thrown in)

by ant9000 (Monk)
on Jun 20, 2003 at 08:28 UTC ( #267482=note: print w/replies, xml ) Need Help??

in reply to Lexical vs. Package Variables (With a little local thrown in)

I find your explanations nice and clear; maybe you could also append the output of your scripts, just to make your points even easier to grasp.
A note about local: it's real use is for temporarily overwriting Perl's automatic variables, which cannot be redeclared as lexicals, for instance
#here $/ is usually a newline (on Unix, at least) { #localize the input record separator and undefine it local $/=undef; #now reading from STDIN yelds the entire contents at once my $whole_file=<>; #do what you like with lexical $whole_file #... } #here $/ is restored back to its original value

Log In?

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://267482]
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others avoiding work at the Monastery: (2)
As of 2016-10-25 00:26 GMT
Find Nodes?
    Voting Booth?
    How many different varieties (color, size, etc) of socks do you have in your sock drawer?

    Results (313 votes). Check out past polls.