Created
December 23, 2011 07:34
-
-
Save halcat0x15a/1513492 to your computer and use it in GitHub Desktop.
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
case class ScalaChan[A](values: A*) | |
implicit def ScalaChanFoldable = new Foldable[ScalaChan] { | |
override def foldMap[A, M: Monoid](t: ScalaChan[A], f: (A) => M): M = t.values.map(f).fold(mzero[M])(_ |+| _) | |
} | |
ScalaChan(1, 2, 3, 4).foldMap(identity) assert_=== 10 |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
nel("Hello", "Scalaz").foldr(none[String])(_.some |+| _) assert_=== Some("HelloScalaz") | |
List('Scalaz, 'Scala).foldl('Scalaちゃん.wrapNel)(_ |+| _.wrapNel) assert_=== NonEmptyList('Scalaちゃん, 'Scalaz, 'Scala) |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
nil[Int].foldl1(_ * _) assert_=== None | |
nel(1, 2, 3).foldr1(_ * _) assert_=== Some(6) |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
nel(3, 4, 6).foldRightM(6)((a, b) => b +>: a.wrapNel) assert_=== NonEmptyList(6, 3, 4, 3, 6, 3, 4, 3) | |
nel("10", "Scala").foldLeftM(10)((i, s) => s.parseInt.map(_ |+| i).toOption) assert_=== None |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
nel(1, 3, 5).all(_ % 2 /== 0) assert_=== true | |
nel(1, 3, 6) ∀ (_ % 2 /== 0) assert_=== false | |
none[Int].any(_ gt 0) assert_=== false | |
1.some ∃ (_ gt 0) assert_=== true | |
List(10, 20, 30).element(30) assert_=== true | |
List(10, 11, 12) ∋ 13 assert_=== false | |
11 ∈: List(10, 11, 12) assert_=== true |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
nil[String].empty assert_=== true | |
nel(1, 2, 4).count assert_=== 3 | |
100.some.foldIndex(0) assert_=== 100 |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
nel(1, 2, 3).listr assert_=== List(1, 2, 3) | |
'Scalaz.some.listr assert_=== List('Scalaz) | |
"Hello".show.stream.take(3) assert_=== Stream('H', 'H', 'H') | |
"Hello".some.stream.take(3) assert_=== Stream("Hello") |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
"Scalaz".show.maximum assert_=== Some('z') | |
none[Int].maximum assert_=== None | |
nel(3, 2, 1, 2, 3).minimum assert_=== Some(1) | |
nil[String].minimum assert_=== None |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
nel(0, 1, 1, 2, 3, 5).selectSplit(_ % 2 /== 0) assert_=== List(List(1, 1), List(3, 5)) | |
346.some.selectSplit(_ === 345) assert_=== Nil | |
import Digit._ | |
11235L.digits.splitWith(_.toInt % 2 === 0) assert_=== List(List(_5, _3), List(_2), List(_1, _1)) | |
"Scalaちゃん".show.splitWith(_ === 'a') assert_=== List(List('S', 'c'), List('a'), List('l'), List('a'), List('ち', 'ゃ', 'ん')) |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment