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hikari-no-yume/rot13.js

Last active August 29, 2015 14:14
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rot13 ES6
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rot13.js
const rot13c = (c) =>
('a' <= c && c <= 'z') ? String.fromCharCode(97 + (c.charCodeAt(0) - 97 + 13) % 26) :
('A' <= c && c <= 'Z') ? String.fromCharCode(65 + (c.charCodeAt(0) - 65 + 13) % 26) :
c
const rot13 = (str) =>
Array.prototype.map.call(str, rot13c).join('')
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