Rotar13 texto en JavaScript
const rot13Deg = (string) => {
var a = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";
var b = "nopqrstuvwxyzabcdefghijklmNOPQRSTUVWXYZABCDEFGHIJKLM";
const newText = string.replace(/[a-z]/gi, (c) => b[a.indexOf(c)]);
return newText
};
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