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||
Combined from primary sources listed below.

In Operators§

See primary documentation in context for infix ||

Returns the first argument that evaluates to True in Boolean context, otherwise returns the last argument.

Note that this short-circuits; i.e., if one of the arguments evaluates to a true value, the remaining arguments are not evaluated.

sub a { 0 }
sub b { 1 }
sub c { die "never called" };
say a() || b() || c();      # OUTPUT: «1␤»