=begin #signature

  Developer   : Ruben Verstraten
  File        : fav_foods.rb
  Project     : CareerFoundry Exercise 3.3: Data Structures
  Date        : 2018-05-19
  Description : Exercise for learning:
              : - array methods
              : - each loops

=end #signature

# A little extra exploration into Ruby variables and their scope:
# $food_array = [] # Global variable (scope inside method as well)
# @food_array = [] # Instance variable (scope inside method as well)
# food_array = [] # Local variable (no scope in method: needs return)
# food_array = Array.new # Another way to declare an empty local array

# Simple method that gets 3 favorite foods from the user
def fav_foods
  food_array_i = []
  puts ""
  3.times do
    puts "Name a favorite food:"
    food_array_i << gets.chomp
  end
  return food_array_i
end

# Declare food_array, and call fav_foods, which gives it values
food_array = fav_foods

# Output the list of favorite foods
# The elements are joined into 1 string (seperated with ", ")
puts "\nYour favorite foods: #{food_array.join(", ")}\n\n"

# Output each element in a string
# These elements are referred to as food
food_array.each do |food|
  puts "I like #{food} too!"
end

puts "\n"

# Alternative way of doing the same each-loop:
food_array.each { |food| puts "I like #{food} too!"}

puts "\n"