shuffling yaml in ruby

categories.yml

APTITUDES: 
  - Fighting
  - Presence
  - Aircraft
  - Occultism
  - Technology
  - Business
  - Performance
  - Vehicles

POWERS: 
  - Absorption
  - Insubstantiality
  - Summoning
  - Life Support
  - Super Leap
  - Burrowing
  - Mental Blast
  - Super Running
  - Communication
  - Mental Paralysis

sample_output.md

• Category: APTITUDES

  • Performance
  • Fighting
  • Occultism

• Category: POWERS

  • Mental Paralysis
  • Insubstantiality
  • Communication

shuffle.rb

#!/usr/bin/env ruby

require 'yaml'
require 'pp' # Pretty printer
# require 'byebug' # for debugging

# Open yaml File
# superstuff = YAML.load_file('/home/username/data/sample.yaml')
superstuff = YAML.load_file('categories.yml') # if you're running it from the same directory

# byebug
# puts "pause"

# Iterate through what's there, and hopefully randomly sample some data.
superstuff.each do |category|
    # byebug
    category_name = category.first
    category_options = category.last
    draw_3 = category_options.sample(3)

    puts "- Category: #{category_name}"
    draw_3.each do |item|
        puts "  - #{item}"
    end
    puts # blank line in between categories
end