character counting

charcounting.rb

# def count_letters(str)
#   count={}
#   str.strip.each_char do |char|
#     count[char] = 0 unless count.include?(char)
#     count[char] += 1
#   end
#   count
# end

def count_letters(str)
  location={}
  str.strip.split('').each_with_index do |char, index|
    location[char] = [] unless location.include?(char)
    location[char] << index
  end
  location
end

puts count_letters("lighthouse in the house...").inspect