method

choose_from_list

Ruby latest stable (v2_5_5) - 0 notes - Class: StreamUI

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What's this?

choose_from_list(question, list) public

Choose from a list of options. question is a prompt displayed above the list. list is a list of option strings. Returns the pair [option_name, option_index].

Show source

# File lib/rubygems/user_interaction.rb, line 230
  def choose_from_list(question, list)
    @outs.puts question

    list.each_with_index do |item, index|
      @outs.puts " #{index+1}. #{item}"
    end

    @outs.print "> "
    @outs.flush

    result = @ins.gets

    return nil, nil unless result

    result = result.strip.to_i - 1
    return list[result], result
  end

choose_from_list

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