Indexing directly into returned array in Perl

Question

This question has been asked about PHP both here and here, and I have the same question for Perl. Given a function that returns a list, is there any way (or what is the best

Answer 1

Just use parentheses to define your list and then index it to pull your desired element(s):

my $a = (split /,/, $comma_separated)[0];

Answer 2

Just like you can do this:

($a, $b, $c) = @array;

You can do this:

my($a) = split /,/, $comma_separated;

my $a on the LHS (left hand side) is treated as scalar context. my($a) is list context. Its a single element list so it gets just the first element returned from split.

It has the added benefit of auto-limiting the split, so there's no wasted work if $comma_separated is large.