Contents

require 'facet/array/rand_index'
class String
  # Destructive pick_char.  Delete a random character of the string
  # and return it as a single-character string.
  #
  #   require 'facet/string/at_rand'
  #
  #   s = "Ruby rules"
  #   s.pick_char!  #=> "y"
  #   s             #=> "Rub rules"
  #
  def rand_char!
    c = split(//,-1)
    i = c.rand_index
    r = c[ri]
    c[ri] = ''
    self.replace( c.join('') )
    return r
  end
end

Version data entries

3 entries across 3 versions & 1 rubygems

Version	Path
facets-0.7.0	lib/facet/string/rand_char%21.rb
facets-0.7.1	lib/facet/string/rand_char%21.rb
facets-0.7.2	lib/facet/string/rand_char%21.rb