The global value
true is the only instance of class
TrueClass and represents a logically true value in boolean expressions. The class provides operators allowing
true to be used in logical expressions.
true& anObject → anObject
falseif anObject is
true^ anObject → !anObject
trueif anObject is
true| anObject →
true. As anObject is an argument to a method call, it is always evaluated; there is no short-circuit evaluation in this case.
true | puts("or") true || puts("logical or")
Extracted from the book "Programming Ruby - The Pragmatic Programmer's Guide"
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