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| const single_digits = ["", "one", "two", "three", "four", "five", "six", "seven", "eight", "nine"]; | |
| const two_digits = [ | |
| "ten", "eleven", "twelve", "thirteen", "fourteen", "fifteen", "sixteen", "seventeen", "eighteen", | |
| "nineteen" | |
| ] | |
| const tens = [ | |
| "", "ten", "twenty", "thirty", "forty", "fifty", "sixty", "seventy", "eighty", "ninety" | |
| ]; | |
| const thousands = ["", "thousand"]; | |
| function helper(number) { | |
| if (number === 0) { | |
| return ""; | |
| } else if (number < 10) { | |
| return single_digits[number]; | |
| } else if(number < 20) { | |
| return two_digits[number - 10]; | |
| } else if (number < 100) { | |
| return tens[Math.floor(number / 10)] + helper(number % 10); | |
| } else { | |
| let temp = single_digits[Math.floor(number / 100)] + "hundred"; | |
| if (number % 100 !== 0) { | |
| temp += "and" + helper(number % 100); | |
| } | |
| return temp; | |
| } | |
| } | |
| function numberToWord(number) { | |
| let result = ""; | |
| let i = 0; | |
| while (number > 0) { | |
| if (number % 1000 !== 0) { | |
| result += helper(number % 1000) + thousands[i] + result; | |
| } | |
| number = Math.floor(number / 1000); | |
| i++; | |
| } | |
| return result; | |
| } | |
| function numberLetterCounts(limit) { | |
| let result = 0; | |
| for (let i = 1; i <= limit; i++) { | |
| let strNumber = numberToWord(i); | |
| result += strNumber.length; | |
| } | |
| return result; | |
| } | |
| console.log(numberLetterCounts(1000)); |