Re^2: Scope Issue

[fidesachates]

Am I wrong or did you mean || instead of //?

[AR]

// is the defined or operator. || is the or operator. // and //= were added in in 5.10 as a shortcut for something along the lines of $var = defined $var ? $var : $default_value;

$var //= $default_value; is much prettier IMHO. I'm fairly certain // and || short-circuit in the same exact way. It's easy enough to test.

[MKJ747]

I tried || and // and they both worked. Thanks to everyone for your contribution!

[GrandFather]

Note that || and // have different effects when the variable being tested is false! // only tests for undefined. || tests for any false value. ||= will replace 0 or '' with the right hand side value where //= will only replace undef with the right hand side value.

//= behaves like:

$var = $defaultValue if ! defined $var;

||= behaves like:

$var = $defaultValue if ! $var;

[Anonymous Monk]

|| is the regular or operator ("true, or ..." you might say).

// is the defined or operator ("defined, or ...").

[fidesachates]

ah. good deal.