Class: NilClass

Class

NilClass

In:

Parent:

The class of the singleton object nil.

Methods

& ^ inspect nil? to_a to_f to_i to_s |

Public Instance methods

false & obj => false
nil & obj => false

And—Returns false. obj is always evaluated as it is the argument to a method call—there is no short-circuit evaluation in this case.

false ^ obj => true or false
nil ^ obj => true or false

Exclusive Or—If obj is nil or false, returns false; otherwise, returns true.

nil.inspect => "nil"

Always returns the string "nil".

call_seq:

  nil.nil?               => true

Only the object nil responds true to nil?.

Always returns an empty array.

   nil.to_a   #=> []

nil.to_f => 0.0

Always returns zero.

   nil.to_f   #=> 0.0

Always returns zero.

   nil.to_i   #=> 0

Always returns the empty string.

   nil.to_s   #=> ""

false | obj => true or false
nil | obj => true or false

Or—Returns false if obj is nil or false; true otherwise.

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