There is also `Character.digit(ch: Char, radix: In...

# getting-started

[elizarov]

There is also Character.digit(ch: Char, radix: Int), so you can simply do it straight away with:

fun String.calc() = map { Character.digit(it, 10) }.reduce(Int::times)

[Ruckus]

elizarov: Cool, I didn't know that one.

[Ruckus]

I've actually been surprised how many Java tricks I've found working on Kotlin.