tapNone

inline fun ~~tapNone~~(f: () -> Unit): Option<A>

Deprecated

tapNone is being renamed to onNone to be more consistent with the Kotlin Standard Library naming

Replace with

onNone(f)

The given function is applied as a fire and forget effect if this is a None. When applied the result is ignored and the original None value is returned

Example:

import arrow.core.Some
import arrow.core.none

fun main() {
  Some(12).tapNone { println("flower") } // Result: Some(12)
  none<Int>().tapNone { println("flower") }  // Result: prints "flower" and returns: None
}