function randomInt (min, max) {
    return min + Math.round(Math.random() * max);
}

function getRandomArrayValue (source) {
    if (!(source && source.length)) {
        return;
    }

    const randomIndex = randomInt(0, source.length - 1);
    return source[randomIndex];
}

function capitalize (str) {
    return str && str[0].toUpperCase() + str.substr(1);
}

module.exports = {
    randomInt,
    getRandomArrayValue,
    capitalize
};