Refactoring For Thomas: Small Numbers To Words Helping a fellow DBC student.

small_numbers_to_words.rb

NUMBERS_DICTIONARY = {  100 => "hundred",
                        90 => "ninety",
                        80 => "eighty",
                        70 => "seventy",
                        60 => "sixty",
                        50 => "fifty",
                        40 => "forty",
                        30 => "thirty",
                        20 => "twenty",
                        19 => "nineteen",
                        18 => "eighteen",
                        17 => "seventeen",
                        16 => "sixteen",
                        15 => "fifteen",
                        14 => "fourteen",
                        13 => "thirteen",
                        12 => "twelve",
                        11 => "eleven",
                        10 => "ten",
                         9 => "nine",
                         8 => "eight",
                         7 => "seven",
                         6 => "six",
                         5 => "five",
                         4 => "four",
                         3 => "three",
                         2 => "two",
                         1 => "one",
                         0 => ""}


def small_num_to_english(n) # n needs to be < 1000
  literal_number = "" #this is an empty string that will eventually become our literal number
  if n > 100 
    literal_number << NUMBERS_DICTIONARY[n/100] + " hundred " #pushes the number of hundreds to our string
    n%=100 #reassigns the value of n to what's left of the number
    remainder = n%10 #gets the ones digit
    tens = n-remainder         #gets the tens digit
    literal_number << NUMBERS_DICTIONARY[tens] + " " #pushes those numbers to the string
    literal_number << NUMBERS_DICTIONARY[remainder]
  elsif n > 20
    remainder = n%10 #gets the ones digit
    tens = n-remainder  #gets the tens digit
    literal_number << NUMBERS_DICTIONARY[tens] + " " #pushes those numbers to the string
    literal_number << NUMBERS_DICTIONARY[remainder]
  else
    literal_number << NUMBERS_DICTIONARY[n]
  end
  literal_number
end

#DRIVER
puts small_num_to_english(45)
puts small_num_to_english(145)
puts small_num_to_english(999)