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Re: Re: my $var; vs. use constant VAR = '';

by Rhandom (Curate)
on Apr 27, 2001 at 02:29 UTC ( #75950=note: print w/ replies, xml ) Need Help??


in reply to Re: my $var; vs. use constant VAR = '';
in thread my $var = ''; vs. use constant VAR => '';

Something that is just as fast (slightly faster) than use constant, that can be localized, and that is neat, is to create a reference or alias to a non modifiable variable. Try this:

local *CONST = \23.34234334234;
Try to modify it. You can't. Declare it at the top of your program and it is there for life. Put it in a sub and it stays around for the life of the sub. See 75935 buried way at the bottom of this node.

my @a=qw(random brilliant braindead); print $a[rand(@a)];


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