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Or a Maybe functor http://functionaljavascript.blogspot.co.uk/2013/07/functors.html http://functionaljavascript.blogspot.co.uk/2013/07/functors....
by chriswarbo 13y ago
Or a Maybe functor http://functionaljavascript.blogspot.co.uk/2013/07/functors.html http://functionaljavascript.blogspot.co.uk/2013/07/functors....