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-2.2.1.159	tracks/scala/exercises/rna-transcription/example.scala
trackler-2.2.1.158	tracks/scala/exercises/rna-transcription/example.scala
trackler-2.2.1.157	tracks/scala/exercises/rna-transcription/example.scala
trackler-2.2.1.156	tracks/scala/exercises/rna-transcription/example.scala
trackler-2.2.1.155	tracks/scala/exercises/rna-transcription/example.scala
trackler-2.2.1.154	tracks/scala/exercises/rna-transcription/example.scala
trackler-2.2.1.153	tracks/scala/exercises/rna-transcription/example.scala
trackler-2.2.1.152	tracks/scala/exercises/rna-transcription/example.scala
trackler-2.2.1.151	tracks/scala/exercises/rna-transcription/example.scala
trackler-2.2.1.150	tracks/scala/exercises/rna-transcription/example.scala
trackler-2.2.1.149	tracks/scala/exercises/rna-transcription/example.scala
trackler-2.2.1.148	tracks/scala/exercises/rna-transcription/example.scala
trackler-2.2.1.147	tracks/scala/exercises/rna-transcription/example.scala
trackler-2.2.1.146	tracks/scala/exercises/rna-transcription/example.scala
trackler-2.2.1.145	tracks/scala/exercises/rna-transcription/example.scala
trackler-2.2.1.144	tracks/scala/exercises/rna-transcription/example.scala
trackler-2.2.1.143	tracks/scala/exercises/rna-transcription/example.scala
trackler-2.2.1.142	tracks/scala/exercises/rna-transcription/example.scala
trackler-2.2.1.141	tracks/scala/exercises/rna-transcription/example.scala
trackler-2.2.1.140	tracks/scala/exercises/rna-transcription/example.scala