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-2.2.1.180	tracks/scala/exercises/rna-transcription/example.scala
trackler-2.2.1.179	tracks/scala/exercises/rna-transcription/example.scala
trackler-2.2.1.178	tracks/scala/exercises/rna-transcription/example.scala
trackler-2.2.1.177	tracks/scala/exercises/rna-transcription/example.scala
trackler-2.2.1.176	tracks/scala/exercises/rna-transcription/example.scala
trackler-2.2.1.175	tracks/scala/exercises/rna-transcription/example.scala
trackler-2.2.1.174	tracks/scala/exercises/rna-transcription/example.scala
trackler-2.2.1.173	tracks/scala/exercises/rna-transcription/example.scala
trackler-2.2.1.172	tracks/scala/exercises/rna-transcription/example.scala
trackler-2.2.1.171	tracks/scala/exercises/rna-transcription/example.scala
trackler-2.2.1.170	tracks/scala/exercises/rna-transcription/example.scala
trackler-2.2.1.169	tracks/scala/exercises/rna-transcription/example.scala
trackler-2.2.1.167	tracks/scala/exercises/rna-transcription/example.scala
trackler-2.2.1.166	tracks/scala/exercises/rna-transcription/example.scala
trackler-2.2.1.165	tracks/scala/exercises/rna-transcription/example.scala
trackler-2.2.1.164	tracks/scala/exercises/rna-transcription/example.scala
trackler-2.2.1.163	tracks/scala/exercises/rna-transcription/example.scala
trackler-2.2.1.162	tracks/scala/exercises/rna-transcription/example.scala
trackler-2.2.1.161	tracks/scala/exercises/rna-transcription/example.scala
trackler-2.2.1.160	tracks/scala/exercises/rna-transcription/example.scala