Integer to Roman

Convert integer to Roman numeral.

Code

Utilities

const numerals = [[1000,'M'],[900,'CM'],[500,'D'],[400,'CD'],[100,'C'],[90,'XC'],[50,'L'],[40,'XL'],[10,'X'],[9,'IX'],[5,'V'],[4,'IV'],[1,'I']];
let result = '', n = num;
for (const [val, sym] of numerals) {
  while (n >= val) { result += sym; n -= val; }
}
return result;

Parameters

num(number)

Integer (1-3999).

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