RosettaCodeData/Task/Caesar-cipher/JavaScript/caesar-cipher-1.js

12 lines
314 B
JavaScript

function caesar (text, shift) {
return text.toUpperCase().replace(/[^A-Z]/g,'').replace(/./g, function(a) {
return String.fromCharCode(((a.charCodeAt(0) - 65 + shift) % 26 + 26) % 26 + 65);
});
}
// Tests
var text = 'veni, vidi, vici';
for (var i = 0; i<26; i++) {
console.log(i+': '+caesar(text,i));
}