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A comment on 38% of bugs at Airbnb could have been prevented by using types. Parent comment

Re:38% of bugs at Airbnb could have been prevented by using ... by hombre_fatal on Monday February 11, 2019 @11:13AM (#19135503)
> how would one annotate the type of that function

Some languages support function overloads like Swift and Kotlin.

    fn foo(input: A, xform: A -> B) -> B
    fn foo(input: [A], xform: A -> B) -> [B]
Hmm, maybe we can generalize that into a Functor.
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