No-ops

Perl doesn't officially have a no-op operator, but the bare constants 0 and 1 are special-cased not to produce a warning in void context, so you can for example safely do

1 while foo();

Links:

http://perldoc.perl.org/5.24.0/perlop.html#No-ops

doc_perl

2016-12-06 03:21:47

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