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-2.2.1.98	tracks/scala/exercises/rna-transcription/example.scala
trackler-2.2.1.97	tracks/scala/exercises/rna-transcription/example.scala
trackler-2.2.1.96	tracks/scala/exercises/rna-transcription/example.scala
trackler-2.2.1.95	tracks/scala/exercises/rna-transcription/example.scala
trackler-2.2.1.94	tracks/scala/exercises/rna-transcription/example.scala
trackler-2.2.1.93	tracks/scala/exercises/rna-transcription/example.scala
trackler-2.2.1.92	tracks/scala/exercises/rna-transcription/example.scala
trackler-2.2.1.91	tracks/scala/exercises/rna-transcription/example.scala
trackler-2.2.1.90	tracks/scala/exercises/rna-transcription/example.scala
trackler-2.2.1.89	tracks/scala/exercises/rna-transcription/example.scala
trackler-2.2.1.88	tracks/scala/exercises/rna-transcription/example.scala
trackler-2.2.1.87	tracks/scala/exercises/rna-transcription/example.scala
trackler-2.2.1.86	tracks/scala/exercises/rna-transcription/example.scala
trackler-2.2.1.85	tracks/scala/exercises/rna-transcription/example.scala
trackler-2.2.1.84	tracks/scala/exercises/rna-transcription/example.scala
trackler-2.2.1.83	tracks/scala/exercises/rna-transcription/example.scala
trackler-2.2.1.82	tracks/scala/exercises/rna-transcription/example.scala
trackler-2.2.1.81	tracks/scala/exercises/rna-transcription/example.scala
trackler-2.2.1.80	tracks/scala/exercises/rna-transcription/example.scala
trackler-2.2.1.79	tracks/scala/exercises/rna-transcription/example.scala