Just amazed by all the extension functions, no nee...

# announcements

[Bernhard]

Just amazed by all the extension functions, no need to

sequence.flatMap { list.asSequence }
sequence.flatMap { list }
is enough

[Tobias Berger]

really? is this something new from Kotlin 1.4?

[Bernhard]

yes

[Bernhard]

@SinceKotlin("1.4")
@OptIn(kotlin.experimental.ExperimentalTypeInference::class)
@OverloadResolutionByLambdaReturnType
@kotlin.jvm.JvmName("flatMapIterable")
public fun <T, R> Sequence<T>.flatMap(transform: (T) -> Iterable<R>): Sequence<R> {
    return FlatteningSequence(this, transform, Iterable<R>::iterator)
}

[Tobias Berger]

👍🏻