Scala: Fun With CanBuildFrom
scala zip with index from 1
... as key part of the language. And now, Java 8 is (finally) joining in on the fun. ... invokevirtual scala/collection/immutable/List$/canBuildFrom().... which seems a bit awkward (aren't all Scala implicits..). implicit just means that a Scala compiler will search for this type CanBuildFrom[Repr, B,.... (6 replies) Hi folks, i'm *desperately* trying to add some custom CBF in scope but this don'l work (2.10.1-RC1): implicit val i: Integer = null.... In Scala we define instances by creating concrete implementations of the type class and tagging ... Now for a more interesting example Option[Int] . ... If we ignore distractions like CanBuildFrom and ExecutionContext , the implementation of.... Applicative is very interesting as an abstraction over construction. ... on page 135 and CanBuildFrom on page 346 how CanBuildFrom is used in the collections.... toSeq values do f value) static member inline ($) (_ : Iter, values : String) = Iterable (fun f -> for value in values do f value) type CanBuildFrom. Finally, the funny "CanBuildFrom" implicit paramters are what allow us to construct specific types, like List or Vector, generically. They are built into to all the core.... Getting to know CanBuildFrom (without a PhD) ... This trait is a bit of a funny thing: it is part of many Scala collections function signatures, and.... Jump to About CanBuildFrom - So CanBuildFrom is contra-variant on its first type parameter. Because Nothing is a bottom class (ie, it is a subclass of.... twitterhttp://www.dotkam.com/2012/05/08/scala-fun-with-canbuildfrom/ Scalap333CanBuildFrom.... problems solved by CanBuildFrom and the alternative solutions implemented in the new collections. Transforming the elements of a collection. It's.... CanBuildFrom[Nothing, A, Vector[A]]]. Or def getVectorCBF[A](v: Vector[A]) = implicitly[collection.generic.canBuildFrom[Vector[A], A, Vector[A]]]. nigredo-tori.. Scala Snacks: Part 1 - Sets are invariantly interesting. 13 August ... def map[B, That](f: A => B)(implicit bf: CanBuildFrom[This, B, That]): That.. Future[B])(fun: (B, A) commons. ... Opt[A]; def flatCollect[B, That](f: PartialFunction[A, TraversableOnce[B]])(implicit cbf: CanBuildFrom[C[A], B, That]): That.... The mathematical functions are in the package scala.math, not in any class. Sometimes, you'll see functions with funny names. ... That](from: Int, patch: GenSeq[B], replaced: Int) (implicit bf: CanBuildFrom[String, B, That]): That Just ignore it.. 4.2 Effect Annotations in Scala In order to annotate the latent effect of a method ... +Repr] // ... fun map[B, That](f: A => B, implicit bf: CanBuildFrom[Repr, B, That]):.... My Road to Scala. 2. Criticism. 2.1. CanBuildFrom; 2.2. Complex Hierarchy; 2.3. Seq or Other Super-types; 2.4. Not Using Type-classes. 3.. Create a new GridFS File from a scala. ... collect [B, That] (pf: PartialFunction[GridFSDBFile, B])(implicit bf: CanBuildFrom[Iterable[GridFSDBFile], B, That]): That.. def filterMap[B,D](f: A => Option[B])(implicit b: CanBuildFrom[?,B,D]): D def ... I don't use Scala, but that sounds like a fair and interesting point to.... The way type inference works, the whole CanBuildFrom mess, and Collection Variance ... Now, lets have some fun! ... trait Set[A] scala> Set(1) contains () :8: error: not enough arguments for method contains: (elem: Int)Boolean.
10cd8655f0
Word Processor
DamonPS2 PRO (PS2 Emulator) v1.3.3 [Paid] [Latest]
Apple makes privacy jab at Google smart city plan
Superar-se sempre es possible: un DJ sensebracos
Italy IPTV v1.2 [Ad-Free]
Exportools Professional 6.0.0
Gobotree 82 3D People
Ashampoo Snap 10 + Portable Free Download [Latest]
The External Design Isnt Dramatically Different, But There Are Lots Of Changes Inside, Dawson Said
What happened to the growth in mobile gaming | GamesBeat | Games | by Atul Bagga
