arrow-core/arrow.core/traverseOption

traverseOption

inline fun <A, B> Iterable<A>.traverseOption(f: (A) -> Option<B>): Option<List<B>>
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inline fun <A, B> NonEmptyList<A>.traverseOption(f: (A) -> Option<B>): Option<NonEmptyList<B>>
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fun <A, B> Sequence<A>.traverseOption(f: (A) -> Option<B>): Option<Sequence<B>>
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inline fun <K, A, B> Map<K, A>.traverseOption(f: (A) -> Option<B>): Option<Map<K, B>>
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