emoji converter

emoji.js

// convert emoji character to unicode key sequences
var getCode = emoji => emoji.split('').map(c => c.codePointAt(0).toString(16)).join('-');

var unifiedToEmoji = unified => {
    return unified
        .split('-')
        .map(hex => parseInt(hex, 16))
        .map(hex => String.fromCodePoint(hex))
        .join('');
};


const unifiedToEmoji = unified => {
    const code = unified
        .split('-')
        .map(hex => parseInt(hex, 16))
        // some how the character in the derived emojis are not standard,
        // it has to discard the 0xfe0f character so we can match with
        // emojis from emoji-data
        .filter(hex => hex !== 0xfe0f);
    return punycode.ucs2.encode(code);
};