`map[key]?.let { f(it) } ?: init`

# getting-started

[edwardwongtl]

map[key]?.let { f(it) } ?: init

[v]

This is a good solution, but would it be considered idiomatic code, or cryptically terse?

[edwardwongtl]

If someone knows the basics of Kotlin, this will not be cryptic at all.