kresult-core/io.kresult.core/KResult/map

map

inline fun <R> map(f: (success: T) -> R): KResult<E, R>

Maps (transforms) the success value T to a new value R

import io.kresult.core.KResult
import io.kotest.matchers.shouldBe

fun test() {
  KResult.Success(2)
    .map {
      it * it
    }
    .getOrNull() shouldBe 4
}
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Parameters

f

transform the KResult.Success type T to R.