Pops and returns last word off self; changes self : String class Extension « String « Ruby






  1. Ruby
  2. String
  3. String class Extension

Pops and returns last word off self; changes self


class String
  @@last_word_re = /(\w+\W*)$/

  def pop_word
    return nil if self.empty?
    self=~@@last_word_re
    newself= $' || ""       # $' is PREMATCH
    self.replace(newself) unless $'.nil?
    $1
  end
end


a = "this is a test"

puts a.pop_word "another"








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