Re: Global array afftected by map inside of a subroutine

Are you using Perl 5.14? If so, what happens when you use the non-destructive replacement flag /r on the regex?

Remember that because map operates on $_, it can update array elements in place. Remember also that map returns the return value of its last expression, which is not always $_.

Improve your skills with Modern Perl: the free book.

Comment on Re: Global array afftected by map inside of a subroutine Select or Download Code

Replies are listed 'Best First'.
Re^2: Global array afftected by map inside of a subroutine by Lady_Aleena (Priest) on Dec 13, 2011 at 22:40 UTC
I'm using Strawberry Perl 5.10 for Windows XP. *Have a cookie and a very nice day!* Lady Aleena	[reply]
Re^3: Global array afftected by map inside of a subroutine by chromatic (Archbishop) on Dec 13, 2011 at 23:02 UTC
Then you need something like: `my @short_sizes = map { my $item = $_; $item =~ s/^(\w)\w{1,}$/$1b/; $item } @in_sub_filesize_names;` Improve your skills with Modern Perl: the free book.	[reply] [d/l]
Re^3: Global array afftected by map inside of a subroutine by runrig (Abbot) on Dec 14, 2011 at 00:16 UTC
In map, grep, and in "for" loops, `$_` is an alias to the current item, so this would work also: `my @short_sizes = @in_sub_filesize_names; s/^(\w)\w{1,}$/$1b/ for @short_sizes;` [download]	[reply] [d/l] [select]