class String

def downcase_first

See ActiveSupport::Inflector.downcase_first.

''.downcase_first # => ""
'I'.downcase_first # => "i"
'If they enjoyed The Matrix'.downcase_first # => "if they enjoyed The Matrix"

Converts the first character to lowercase. 
def downcase_first
  ActiveSupport::Inflector.downcase_first(self)
end