comment on

Whether to keep it or change it depends on what you find more readable. I find the switch feature more readable than nested ternaries:

use strict;
use warnings;
use feature qw( switch say );

sub test_it {
    my $value = shift;
    given($value) {
        when(/aaa/) { return 'wanna' } 
        when(/bbb/) { return 'be' } 
        when(/ccc/) { return 'startin' }
        default     { return 'somethin' }
    }
}
 
foreach my $str (qw[testaaa testbbb testccc testddd]) {
    say test_it($str);
}
[download]

Update

I tried to remove the returns by wrapping the given in a do, but it seems the default/when blocks don't return anything to the do in the way that if/else blocks do:

use strict;
use warnings;
use feature qw( switch say );
use Getopt::Long;

my $tester = 'test_it';
GetOptions("test=s" => \$tester);

sub test_it {
    my $value = shift;
    given($value) {
        when(/aaa/) { return 'wanna' } 
        when(/bbb/) { return 'be' } 
        when(/ccc/) { return 'startin' }
        default     { return 'somethin' }
    }
}

sub test_it2 {
    my $value = shift;
    do {
        no warnings;
        given($value) {
            when(/aaa/) { 'wanna' } 
            when(/bbb/) { 'be' } 
            when(/ccc/) { 'startin' }
            default     { 'somethin' }
        }
    };
}

sub test_it3 {
    my $value = shift;
    do {
        local $_ = $value;
        if(/aaa/)    { 'wanna' } 
        elsif(/bbb/) { 'be' } 
        elsif(/ccc/) { 'startin' } 
        else         { 'somethin' }
    };
}
 
foreach my $str (qw[testaaa testbbb testccc testddd]) {
    say $main::{$tester}->($str);
}
[download]

I don't know how Perl6 addresses this, but e.g. in (PLT) Scheme the explicit returns aren't needed:

#lang scheme
(define (test-it value)
  (match value        
    [(regexp #rx"aaa") "wanna"]
    [(regexp #rx"bbb") "be"]
    [(regexp #rx"ccc") "startin"]
    [_ "somethin"]))

(for ([str '("testaaa" "testbbb" "testccc" "testddd")]) 
  (printf "~a~n" (test-it str)))
[download]

In reply to Re: Would you use a switch instead? by Arunbear
in thread Would you use a switch instead? by Anonymous Monk

Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!

Titles consisting of a single word are discouraged, and in most cases are disallowed outright.

Read Where should I post X? if you're not absolutely sure you're posting in the right place.

Please read these before you post! —

Posts may use any of the Perl Monks Approved HTML tags:

a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr

You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)

	For:		Use:
	&		`&`
	<		`<`
	>		`>`
	[		`[`
	]		`]`

Link using PerlMonks shortcuts! What shortcuts can I use for linking?

See Writeup Formatting Tips and other pages linked from there for more info.