This is quite a concise way of doing things:

sub lowercase {
   wantarray ? (map { lc } @_) : lc(shift);
}

[download]

This is an insane way of doing things:

sub lowercase {
    ( wantarray ? sub{@_} : sub{shift} )->(
        map { lc } @_
    );
}

[download]

Update: Here's another solution using my module returning that allows you to create additional keywords that act like return...

#!/usr/bin/env perl

use v5.14;
use returning { lreturn => sub { wantarray ? @_ : $_[0] } };

sub lowercase {
    lreturn map { lc; } @_;
    warn "this line never executes";
}

say for lowercase('Alice', 'Bob');
say scalar lowercase('Carol', 'Dave');

[download]
package Cow { use Moo; has name => (is => 'lazy', default => sub { 'Mooington' }) } say Cow->new->name

In reply to Re: wantarray alternative by tobyink
in thread wantarray alternative by tqisjim

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