Re: what is benefit of unless ?

[Anonymous Monk]

in reply to what is benefit of unless ?
in thread unless statements

You can use "else" with "unless".

"unless" means "if not", so it reverses the meaning of an "if" comparison.

See perlsyn for details.

Please read Where should I post X? and How (Not) To Ask A Question.

[Anonymous Monk]

is this the equivalent code for " unless(condition)" ? if !(condition) { ... ... } else { ... ... } reply soon, barun parichha

[merlyn]

unless ($boolean) { ... }

is nearly completely equivalent to:

if (not $boolean) { ... }

(The slight difference is in the "last expression evaluated" return value for a subroutine, but that's only a minor distracting point.)

[flight]

You can use the if/else statement intead of "unless" but it requires more commands of if/else than "unless" and the loop continues as long we required