[フレーム]
Last Updated: February 25, 2016
·
1.555K
· lukasz-madon

Converting timestamps to intervals in Scala

I wrote a simple function that converts timestamps to intervals between them.

def toIntervals(timestamps: List[String]): List[Long] = {
 if (timestamps.tail.isEmpty) List()
 else {
 val first = timestamps.head.toLong
 val second = timestamps.tail.head.toLong
 val newHead = second - first
 newHead :: toIntervals(timestamps.tail)
 }
 }

Good nice little helper, but you can do better!

def toIntervals(timestamps: List[String]): List[Long] = {
 val times = timestamps.map(_.toLong)
 (timestail, times).zipped.map(_ - _)
}

AltStyle によって変換されたページ (->オリジナル) /