in reply to Re: map vs for\foreach.
in thread map vs for\foreach.

Is it good practice to mix map with lambda functions? like:
map{ sub{...} } @list;

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Re^3: map vs for\foreach.
by MidLifeXis (Monsignor) on Mar 11, 2015 at 14:44 UTC

    That is essentially what a map is - although your syntax is wrong. Unless you do something like: map { sub {...}->(...) } @foo to force the execution of the sub, you will simply get a set of sub {...} anonymous subroutines the same size as @foo.

    The contents of the BLOCK in the map call are what I think you are thinking of as the sub. OTOH, something like:

    @subs = map { my $something = $_; sub { blah( $something, ... ); } } @data;

    would give you a set of subroutines that each operate on a specific item in @data. In this case, you are still transforming @data into a set of subs working on a closures.

    --MidLifeXis

      Ok, that just blew my mind. (Gotta love those Perl "aha!" moments!)

      Thanks, MidLifeXis :-)

      -Bib