RosettaCodeData/Task/Caesar-cipher/JavaScript/caesar-cipher-2.js

6 lines
180 B
JavaScript

var caesar = (text, shift) => text
.toUpperCase()
.replace(/[^A-Z]/g, '')
.replace(/./g, a =>
String.fromCharCode(((a.charCodeAt(0) - 65 + shift) % 26 + 26) % 26 + 65));