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End of Life Ruby 3.0 has reached end of life and gets no more fixes. Switch to Ruby 4.0 →

instance method

Delegator#!=

!=(obj)

Returns true if two objects are not considered of equal value.

See also #! #== .new #eql? also in 4.1 · 4.0 · 3.4 · 3.3 · 3.2 · 3.1