Talk:Monads/Maybe monad
Perhaps a specific task ?
It can help comparison across languages if there is a specific task with a readily intelligible motivation. Providing a specific set of inputs and expected outputs can make the code even more directly comparable.
One candidate might be to:
- Create and compose safe versions (number -> Maybe number) of 3 partial functions (reciprocal, sqrt, log)
- Show the results of applying the required composition to a specific set of input values. In the ES5 JavaScript example, I have used, for instance [-2, -1, -0.5, 0, 1 / Math.E, 1, 2, Math.E, 3, 4, 5]
Languages to which a Maybe monad is less relevant ?
Interesting comment on the difficulty of finding something useful for J. I'm not sure whether the implication is that: