RosettaCodeData/Task/Roman-numerals-Decode/JavaScript/roman-numerals-decode-9.js

24 lines
658 B
JavaScript

(() => {
function toNumeric(value) {
return value
.replace(/IV/, 'I'.repeat(4))
.replace(/V/g, 'I'.repeat(5))
.replace(/IX/, 'I'.repeat(9))
.replace(/XC/, 'I'.repeat(90))
.replace(/XL/, 'I'.repeat(40))
.replace(/X/g, 'I'.repeat(10))
.replace(/L/, 'I'.repeat(50))
.replace(/CD/, 'I'.repeat(400))
.replace(/CM/, 'I'.repeat(900))
.replace(/C/g, 'I'.repeat(100))
.replace(/D/g, 'I'.repeat(500))
.replace(/M/g, 'I'.repeat(1000))
.length;
}
const numerics = ["MMXVI", "MCMXC", "MMVIII", "MM", "MDCLXVI"]
.map(toNumeric);
console.log(numerics);
})();