The global value false
is the only instance of class FalseClass
and represents a logically false value in boolean expressions. The class provides operators allowing false
to participate correctly in logical expressions.
false
& anObject → false
false
. anObject is always
evaluated as it is the argument to a method call—there is no
short-circuit evaluation in this case.
false
^ anObject → true
or false
nil
or
false
, returns false
; otherwise, returns true
.
false
| anObject → true
or false
false
if anObject is
nil
or false
; true
otherwise.Extracted from the book "Programming Ruby - The Pragmatic Programmer's Guide"
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