Removes first character from self and returns it, changing self : String class Extension « String « Ruby






  1. Ruby
  2. String
  3. String class Extension

Removes first character from self and returns it, changing self



class String
  def shift
    return nil if self.empty?
    item=self[0]
    self.sub!(/^./,"")
    return nil if item.nil?
    item.chr
  end
end

a = "this is a test"

puts a.shift








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