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End of Life Ruby 3.2 has reached end of life and gets no more fixes. Switch to Ruby 4.0 →

instance method

BasicObject#!=

obj != other → true or false

Returns true if two objects are not-equal, otherwise false.

See also #! #== .new #equal? also in 4.1 · 4.0 · 3.4 · 3.3 · 3.1 · 3.0