Convert Integers (0-59) to Roman Numerals in Javascript

If you are simply looking for a solution to convert integers to roman numerals between 0-59 then here is a simple and quickest solution for it.

Solution

Run the code here: https://repl.it/@VinitKhandelwal/0-59-integer-to-roman-javascript

const getRoman = num => {
  if (num===0) {
    return "";
  }
  let result = "";
  let n = num%10;
  let rest = Math.floor(num/10);
  if (n === 0) {
    getRoman(rest);
  } else if (n<4) {
    for (let i=0;i<n; i++) {
      result = result + "I";
    }
  } else if (n === 4) {
    result = result + "IV";
  } else if (n === 5) {
    result = result + "V";
  } else if (n < 9) {
    result = result + "V";
    for (let l = 6; l < 9; l++) {
      result = result + "I";
    }
  } else if (n === 9) {
    result = result+"IX";
  } else {
    result = result + "V";
    n = n-5;
    for (let i=0; i<n; i++) {
      result = result+"I";
    }
  }
  if (rest === 0) {
    return result;
  } else if (rest<4) {
    for (let j = 0; j < rest; j++) {
      result = "X" + result;
    }
  } else if (rest === 4) {
    result = "XL" + result;
  } else {
    result = "L" + result;
  }
  return result;
}

Example Input

console.log(getRoman(1))
console.log(getRoman(50))
console.log(getRoman(59))
console.log(getRoman(0))
console.log(getRoman(42))
console.log(getRoman(23))
console.log(getRoman(29))
console.log(getRoman(34))

Output

I
L
LIX

XLII
XXIII
XXIX
XXXIV