infix &&
Documentation for infix &&
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language documentation Operators
From Operators
(Operators) infix &&
Returns the first argument that evaluates to False
in boolean context, otherwise returns the last argument.
Note that this short-circuits, i.e. if one of the arguments evaluates to a false value, the arguments to the right are never evaluated.
sub asub bsub c ;say a() && b() && c(); # OUTPUT: «0»