Someone
public ruby v1 · immutablecollection = ('A'..'Z').collect do |letter| unless ['D', 'B', 'Z'].include? letter letter end endcollection.delete nilputs collection.join(' | ')collection = ('A'..'Z').collect do |letter| unless ['D', 'B', 'Z'].include? letter letter end endcollection.delete nilputs collection.join(' | ')