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-2.2.1.139	tracks/scala/exercises/rna-transcription/example.scala
trackler-2.2.1.138	tracks/scala/exercises/rna-transcription/example.scala
trackler-2.2.1.137	tracks/scala/exercises/rna-transcription/example.scala
trackler-2.2.1.136	tracks/scala/exercises/rna-transcription/example.scala
trackler-2.2.1.135	tracks/scala/exercises/rna-transcription/example.scala
trackler-2.2.1.134	tracks/scala/exercises/rna-transcription/example.scala
trackler-2.2.1.133	tracks/scala/exercises/rna-transcription/example.scala
trackler-2.2.1.132	tracks/scala/exercises/rna-transcription/example.scala
trackler-2.2.1.131	tracks/scala/exercises/rna-transcription/example.scala
trackler-2.2.1.130	tracks/scala/exercises/rna-transcription/example.scala
trackler-2.2.1.129	tracks/scala/exercises/rna-transcription/example.scala
trackler-2.2.1.128	tracks/scala/exercises/rna-transcription/example.scala
trackler-2.2.1.127	tracks/scala/exercises/rna-transcription/example.scala
trackler-2.2.1.126	tracks/scala/exercises/rna-transcription/example.scala
trackler-2.2.1.125	tracks/scala/exercises/rna-transcription/example.scala
trackler-2.2.1.124	tracks/scala/exercises/rna-transcription/example.scala
trackler-2.2.1.123	tracks/scala/exercises/rna-transcription/example.scala
trackler-2.2.1.122	tracks/scala/exercises/rna-transcription/example.scala
trackler-2.2.1.121	tracks/scala/exercises/rna-transcription/example.scala
trackler-2.2.1.120	tracks/scala/exercises/rna-transcription/example.scala