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No parameter definition - perl 5 style

Note! This site is about Perl 6.
If you are looking for a solution for Perl 5, please check out the Perl 5 tutorial.

You can also use the old Perl 5 style way to defined functions.

In such case you would not define a signature and any value passed to the subroutine will show up in the internal @_ variable. Any array or hash will be flattened.


#!/usr/bin/env perl6
use v6;

my $z = add(19, 23);
say "first ", $z;

say "second ", add2(19, 23);

say "third ", add3(2, 3);

sub add {
    my ($x, $y) = @_;
    return $x + $y;

sub add2 ($x, $y) {
    return $x + $y;

sub add3 (Int $x, $y) {
    return $x + $y;

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Gabor Szabo
Written by Gabor Szabo

Published on 2012-01-01

Prev: Named only parameters


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