Last active
August 15, 2018 23:01
-
-
Save paulp/fac614c6de23c10644a7af25f4ef96e4 to your computer and use it in GitHub Desktop.
Revisions
-
paulp revised this gist
Aug 14, 2018 . 1 changed file with 0 additions and 1 deletion.There are no files selected for viewing
This file contains hidden or 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 charactersOriginal file line number Diff line number Diff line change @@ -1,5 +1,4 @@ % mscala -v 2.13.0-M4 Welcome to Scala 2.13.0-M4 (Java HotSpot(TM) 64-Bit Server VM, Java 1.8.0_181). Type in expressions for evaluation. Or try :help. -
Aug 14, 2018 . 1 changed file with 4 additions and 0 deletions.There are no files selected for viewing
This file contains hidden or 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 charactersOriginal file line number Diff line number Diff line change @@ -50,3 +50,7 @@ x9 x10 x11 res3: (String, Int) = (x11,4) scala> xs.zipWithIndex.map(_ => 0).apply(4) x12 res4: Int = 0 -
Aug 14, 2018 . 1 changed file with 0 additions and 1 deletion.There are no files selected for viewing
This file contains hidden or 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 charactersOriginal file line number Diff line number Diff line change @@ -1,5 +1,4 @@ % mscala -v 2.13.0-M4 java -cp /Users/psp/Library/Caches/Coursier/v1/https/repo1.maven.org/maven2/org/scala-lang/scala-compiler/2.13.0-M4/scala-compiler-2.13.0-M4.jar:/Users/psp/Library/Caches/Coursier/v1/https/repo1.maven.org/maven2/org/scala-lang/scala-library/2.13.0-M4/scala-library-2.13.0-M4.jar:/Users/psp/Library/Caches/Coursier/v1/https/repo1.maven.org/maven2/org/scala-lang/scala-reflect/2.13.0-M4/scala-reflect-2.13.0-M4.jar:/Users/psp/Library/Caches/Coursier/v1/https/repo1.maven.org/maven2/jline/jline/2.14.6/jline-2.14.6.jar scala.tools.nsc.MainGenericRunner -usejavacp Welcome to Scala 2.13.0-M4 (Java HotSpot(TM) 64-Bit Server VM, Java 1.8.0_181). Type in expressions for evaluation. Or try :help. -
Aug 14, 2018 .There are no files selected for viewing
This file contains hidden or 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 charactersOriginal file line number Diff line number Diff line change @@ -0,0 +1,53 @@ % mscala -v 2.13.0-M4 % mscala -v 2.13.0-M4 java -cp /Users/psp/Library/Caches/Coursier/v1/https/repo1.maven.org/maven2/org/scala-lang/scala-compiler/2.13.0-M4/scala-compiler-2.13.0-M4.jar:/Users/psp/Library/Caches/Coursier/v1/https/repo1.maven.org/maven2/org/scala-lang/scala-library/2.13.0-M4/scala-library-2.13.0-M4.jar:/Users/psp/Library/Caches/Coursier/v1/https/repo1.maven.org/maven2/org/scala-lang/scala-reflect/2.13.0-M4/scala-reflect-2.13.0-M4.jar:/Users/psp/Library/Caches/Coursier/v1/https/repo1.maven.org/maven2/jline/jline/2.14.6/jline-2.14.6.jar scala.tools.nsc.MainGenericRunner -usejavacp Welcome to Scala 2.13.0-M4 (Java HotSpot(TM) 64-Bit Server VM, Java 1.8.0_181). Type in expressions for evaluation. Or try :help. scala> val counter = { | var count = 0 | () => { | val res = try "x" + count finally count = count + 1 | try res finally println(res) | } | } counter: () => String = $$Lambda$831/992524208@22048bd6 scala> def f = counter() f: String scala> def mk1(n: Int): LazyList[String] = if (n <= 0) LazyList() else f #:: mk1(n - 1) mk1: (n: Int)LazyList[String] scala> def mk2(n: Int): LazyList[String] = LazyList.fill(n)(f) mk2: (n: Int)LazyList[String] scala> def xs = mk1(5) xs: LazyList[String] scala> def ys = mk2(5) ys: LazyList[String] scala> xs(4) x0 res0: String = x0 scala> ys(4) x1 x2 x3 x4 x5 res1: String = x5 scala> xs.zipWithIndex.apply(4) x6 res2: (String, Int) = (x6,4) scala> xs.zipWithIndex.filter(_ => true).apply(4) x7 x8 x9 x10 x11 res3: (String, Int) = (x11,4)