method

get_one_optional_argument

ruby latest stable - Class: Gem::Command

get_one_optional_argument()

public

Get a single optional argument from the command line. If more than one argument is given, return only the first. Return nil if none are given.

# File lib/rubygems/command.rb, line 226
  def get_one_optional_argument
    args = options[:args] || []
    args.first
  end