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loicdescotte/catsSequenceFunctions.scala

Last active September 12, 2018 13:38
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Cats sequence functions
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catsSequenceFunctions.scala
import cats.implicits._
val f = (x: Int) => x+1
val g = (x: Int) => x+2
val h = (x: Int) => x+3
// Cats has an Applicative instance for Function1 so you can traverse/sequence it
val l = List(f, g, h).sequence //l : Function1[Int, List[Int]]
l(1) //List(2, 3, 4)
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