RosettaCodeData/Task/Roman-numerals-Encode/JavaScript/roman-numerals-encode-3.js

roman(1999);
// --> "MCMXCIX"

[1990, 2008, "14.09.2015", 2000, 1666].map(roman);
// --> ["MCMXC", "MCMCVI", "XIV.IX.MCMCXV", "MCMC", "MDCLXVI"]