The nice thing about short-circuiting
I just noticed in my own code that even though I am comfortable with this expression:
$a //= 123;when the right-hand side is some function call, especially one with side-effects or big performance penalty, I tend to write:
unless (defined $a) { $a = foo() }which is silly because // and //= short-circuits. The same case for || and ||=, et al. It's just irrational fear.
A programmer (mostly Perl 5 nowadays).
My CPAN ID: SHARYANTO. I'm sedusedan on perlmonks. My twitter is stevenharyanto (but I don't tweet much). Follow me on github: sharyanto.
I've recently found myself using this nice short-circuiting construct quite a bit...
state $foo = do { # some complex calculation };Nice one, will add that to my repertoire.