Comments (3)
I'd be happy to implement this as a function called something like fromNullable
, but I'm hesitant to make it automatic. Haskell actually doesn't do any Maybe
-filling automatically, but the community has a much more well-ingrained sense of totality when it comes to writing functions. However, you can perfectly validly write:
> :t Just ()
Just () :: Maybe ()
()
is Unit, which is probably the closest value to "null" in Haskell.
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I'm not too worried about it, something like this works perfectly well:
return isset($value) ? Maybe::just($value) : Maybe::nothing();
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Yeah, agreed. I'll add it in, as I think it would help reinforce the idea that Just(null)
is valid but really weird!
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