punycode

    Converts a Punycode string of ASCII-only symbols to a string of Unicode symbols.

    1. // decode domain name parts
    3. punycode.decode('--dqo34k'); // '☃-⌘'

    punycode.encode(string)

    Converts a Punycode string representing a domain name to Unicode. Only the
    Punycoded parts of the domain name will be converted, i.e. it doesn’t matter if
    you call it on a string that has already been converted to Unicode.

    2. punycode.toUnicode('xn----dqo34k.com'); // '☃-⌘.com'

    punycode.toASCII(domain)

    Creates an array containing the numeric code point values of each Unicode
    symbol in the string. While JavaScript uses UCS-2
    internally    , this function
    will convert a pair of surrogate halves (each of which UCS-2 exposes as
    separate characters) into a single code point, matching UTF-16.

    1. punycode.ucs2.decode('abc'); // [0x61, 0x62, 0x63]
    3. punycode.ucs2.decode('\uD834\uDF06'); // [0x1D306]

    punycode.ucs2.encode(codePoints)

    punycode.version

    A string representing the current Punycode.js version number.