Preview Ruby 4.1 is a preview. It can change before the final release. Switch to Ruby 4.0 →

instance method

NilClass#^

(false | nil) -> false

(untyped obj) -> bool

false ^ object → true or false

nil ^ object → true or false

#define false_xor true_and

Returns false if object is nil or false, true otherwise:

Example

nil ^ nil        # => false
nil ^ false      # => false
nil ^ Object.new # => true

See also #=~ #| #=== #inspect also in 4.0 · 3.4 · 3.3 · 3.2 · 3.1 · 3.0