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Re^3: Real life uses for closures.

by tobyink (Abbot)
on Feb 13, 2013 at 13:14 UTC ( #1018534=note: print w/ replies, xml ) Need Help??


in reply to Re^2: Real life uses for closures.
in thread Real life uses for closures.

Technically none of the examples from Sort::MultipleFields employ closures; they just use anonymous functions. Closures "close over" a variable.

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


Comment on Re^3: Real life uses for closures.
Re^4: Real life uses for closures.
by DrHyde (Prior) on Feb 18, 2013 at 11:54 UTC

    Here's a closure from it ...

    $sortsub = sub($$) { $spec->($_[0]->{$field}, $_[1]->{$field}) || $oldsortsub->($_[0], $_[1]) }

    Lemme guess - did you just grep the code for /sub {/? :-)

      I didn't look at the source code at all - I was just referring to the usage examples in the pod.

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

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