LeetCode: Integer To Roman Solution

1/**
2 * @param {number} num
3 * @return {string}
4 */
5var intToRoman = function (num) {
6  const dict = {
7    I: 1,
8    IV: 4,
9    V: 5,
10    IX: 9,
11    X: 10,
12    XL: 40,
13    L: 50,
14    XC: 90,
15    C: 100,
16    CD: 400,
17    D: 500,
18    CM: 900,
19    M: 1000,
20  }
21
22  let res = ""
23  for (const [key, value] of Object.entries(dict).reverse()) {
24    res += key.repeat(Math.floor(num / value))
25    num %= value
26  }
27
28  return res
29}