Given a range, getting all dates within that range in Scala

Question

I need to make a function in scala that, given a range of dates, gives me a list of the range. I am relatively new in Scala and I am not able to figure out how to write the righ

Answer 1

When running Scala on Java 9+, we can take advantage of the new java.time.LocalDate::datesUntil:

import java.time.LocalDate
import collection.JavaConverters._

// val start = LocalDate.of(2018, 9, 24)
// val end   = LocalDate.of(2018, 9, 28)
start.datesUntil(end).iterator.asScala.toList
// List[LocalDate] = List(2018-09-24, 2018-09-25, 2018-09-26, 2018-09-27)

And to include the last date within the range:

start.datesUntil(end.plusDays(1)).iterator.asScala.toList
// List[LocalDate] = List(2018-09-24, 2018-09-25, 2018-09-26, 2018-09-27, 2018-09-28)