foldW()

const foldW: <B, A, C>(onNone, onSome) => (ma) => B | C = matchW

Alias for matchW.

Pattern matches on an Option with widened return types.

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Type Parameters

B: B

The return type for None.

A: A

The value type.

C: C

The return type for Some.

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Parameters

onNone: () => B

Handler for None case.

onSome: (a) => C

Handler for Some case.

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Returns

A function that matches the Option.

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Since

2.0.0