var CHARS = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz'.split('');

var generate = function(len) {
    var uuid = [];

    len = len || 14;
    for (i = 0; i < len; i++) {
        uuid[i] = CHARS[0 | Math.random()* CHARS.length];
    }

    return uuid.join('');
};

module.exports = {
    generate: generate
};