Talking about Option, what are the solutions in Ar...

# arrow

[Marius Kotsbak]

Talking about Option, what are the solutions in Arrow for this issue?: https://discuss.kotlinlang.org/t/kotlin-null-check-for-multiple-nullable-vars/1946

[aballano]

you have mapN for nullables

[aballano]

https://github.com/arrow-kt/arrow-core/blob/master/arrow-core-data/src/main/kotlin/arrow/core/Nullable.kt#L7

[kioba]

there is also a nullable continuation in case you are looking to express some logic inside the function.

fun test() = nullable {
    val name = name.invoke()
    val age = age.invoke()
    doSth(name, age)
}

IE: few examples in arrow-core as well:
https://github.com/arrow-kt/arrow-core/blob/0a5a0a94dc5d855d38b2959489bbeb4fdc9c16d6/arrow-core-data/src/test/kotlin/arrow/core/computations/NullableTest.kt

[Marius Kotsbak]

I see nullable is not released yet, but mapN is 🙂