recover

Returns the encapsulated result of the given transform function applied to the encapsulated Throwable exception if this instance represents failure or the original encapsulated value if it is success.

inline fun <R, T : R> Result<T>.recover(transform: (exception: Throwable) -> R): Result<R>(source)

import kotlin.Result

fun main() {
    // A Result that represents a failure (division by zero)
    val failed: Result<Int> = Result.failure(ArithmeticException("Division by zero"))

    // Recover from the failure by providing a default value
    val recovered: Result<Int> = failed.recover { e ->
        // `e` is the Throwable that caused the failure
        if (e is ArithmeticException) 0 else -1
    }

    // Print the value: will print 0
    println(recovered.getOrElse { it })
}

Source