Contents

object RnaTranscription {
  private type Strand = String
  private type Nucleotide = Char

  def toRna(dna: Strand): Option[Strand] =
    dna.foldRight (Option("")) { case (char, rna) =>
      for {
        rnaNucleotide <- toRnaNucleotide(char)
        rnaStrand <- rna
      } yield rnaNucleotide +: rnaStrand
  }

  private val DnaToRna =
    Map('G' -> 'C', 'C' -> 'G', 'T' -> 'A', 'A' -> 'U')

  private def toRnaNucleotide(char: Char): Option[Nucleotide] =
     DnaToRna get char
}

Version data entries

200 entries across 200 versions & 1 rubygems

Version	Path
trackler-2.2.1.119	tracks/scala/exercises/rna-transcription/example.scala
trackler-2.2.1.118	tracks/scala/exercises/rna-transcription/example.scala
trackler-2.2.1.117	tracks/scala/exercises/rna-transcription/example.scala
trackler-2.2.1.116	tracks/scala/exercises/rna-transcription/example.scala
trackler-2.2.1.115	tracks/scala/exercises/rna-transcription/example.scala
trackler-2.2.1.114	tracks/scala/exercises/rna-transcription/example.scala
trackler-2.2.1.113	tracks/scala/exercises/rna-transcription/example.scala
trackler-2.2.1.111	tracks/scala/exercises/rna-transcription/example.scala
trackler-2.2.1.110	tracks/scala/exercises/rna-transcription/example.scala
trackler-2.2.1.109	tracks/scala/exercises/rna-transcription/example.scala
trackler-2.2.1.108	tracks/scala/exercises/rna-transcription/example.scala
trackler-2.2.1.107	tracks/scala/exercises/rna-transcription/example.scala
trackler-2.2.1.106	tracks/scala/exercises/rna-transcription/example.scala
trackler-2.2.1.105	tracks/scala/exercises/rna-transcription/example.scala
trackler-2.2.1.104	tracks/scala/exercises/rna-transcription/example.scala
trackler-2.2.1.103	tracks/scala/exercises/rna-transcription/example.scala
trackler-2.2.1.102	tracks/scala/exercises/rna-transcription/example.scala
trackler-2.2.1.101	tracks/scala/exercises/rna-transcription/example.scala
trackler-2.2.1.100	tracks/scala/exercises/rna-transcription/example.scala
trackler-2.2.1.99	tracks/scala/exercises/rna-transcription/example.scala