arrow-core-data / arrow.core / Validated / mapLeft
mapLeft
inline fun <EE> mapLeft(f: (E) -> EE): Validated<EE, A>
Apply a function to an Invalid value, returning a new Invalid value. Or, if the original valid was Valid, return it.
arrow-core-data / arrow.core / Validated / mapLeft
inline fun <EE> mapLeft(f: (E) -> EE): Validated<EE, A>
Apply a function to an Invalid value, returning a new Invalid value. Or, if the original valid was Valid, return it.
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