var choice = require('./choice');

    var _chars = '0123456789abcdef'.split('');

    /**
     * Returns a random hexadecimal string
     */
    function randHex(size){
        size = size && size > 0? size : 6;
        var str = '';
        while (size--) {
            str += choice(_chars);
        }
        return str;
    }

    module.exports = randHex;