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Re: How Constant pragma works with multi constants

by 7stud (Deacon)
on Feb 06, 2013 at 17:30 UTC ( #1017478=note: print w/replies, xml ) Need Help??


in reply to How Constant pragma works with multi constants

use strict; use warnings; use 5.012; sub show { say shift; } show(10); show 5; --output:-- 10 5

Continuing on:

sub my_use { my $href = shift; for my $key (keys %$href) { say $href->{$key}; } } my $href = { STRAIGHT_LINE_ID => 1, PRORATED_ID => 2, CBP_CUSTOM_ID => 3 }; my_use($href); my_use $href; --output:-- 3 2 1 3 2 1

And...for the grand finale:

my_use({STRAIGHT_LINE_ID => 1, PRORATED_ID => 2, CBP_CUSTOM_ID => 3}); my_use {STRAIGHT_LINE_ID => 1, PRORATED_ID => 2, CBP_CUSTOM_ID => 3}; my_use { STRAIGHT_LINE_ID => 1, PRORATED_ID => 2, CBP_CUSTOM_ID => 3 }; --output:-- 3 2 1 3 2 1 3 2 1
A variable and the thing it refers to can be used interchangeably in your code. You can also write hashes and arrays across multiple lines.

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