dbmedialab/reader-critics

export function cfEmailDecode(encodedString : string) : String {
    let email = '', n, i;
    const r = parseInt(encodedString.substr(0, 2), 16);

    for (n = 2; encodedString.length - n; n += 2){
        i = parseInt(encodedString.substr(n, 2), 16) ^ r;
        email += String.fromCharCode(i);
    }
    return email;
}