Re: Operator held in scalar/array element

No, not an operator, but you can hold a reference to a sub.

my @permissions = (
   sub { -e $_[0] },
);

if ($permissions[0]->($file))
[download]

Comment on Re: Operator held in scalar/array element Download Code

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Re^2: Operator held in scalar/array element by AngryKumquat (Initiate) on May 06, 2009 at 23:29 UTC
Thank you this also works perfectly. Can I just clarify why in the method/subroutine I need the index to $_. I tried it without and it doesn't work. "sub { -e $_ }" instead of "sub { -e $_[0] }". Why does the file parameter need to be referenced as index[0]?	[reply]
Re^3: Operator held in scalar/array element by ikegami (Patriarch) on May 07, 2009 at 00:00 UTC
`sub { -e $_[0] }` [download] is short for `sub { my ($file) = @_; -e $file }` [download] I hope that clarifies things.	[reply] [d/l] [select]
Re^3: Operator held in scalar/array element by AngryKumquat (Initiate) on May 06, 2009 at 23:40 UTC
Sorry. Don't worry about that secondary question. My brain has gone to bed before my body. Thanks for the help.	[reply]