class NilClass < Object

The class of the singleton object nil.

instance methods

&

nil& anObject → false

And—Returns false. As anObject is an argument to a method call, it is always evaluated; there is no short-circuit evaluation in this case.

nil && puts("logical and") nil & puts("and")

produces:

and

^

nil^ anObject → true or false

Exclusive Or—Returns false if anObject is nil or false, true otherwise.

|

nil| anObject → true or false

Or—Returns false if anObject is nil or false, true otherwise.

nil?

nil.nil? → true

Always returns true.

to_a

nil.to_a → []

Always returns an empty array.

to_i

nil.to_i → 0

Always returns zero.

to_s

nil.to_s → ""

Always returns the empty string.