https://medium.com/nuances-of-programming/%D0%BF%D0%BE%D0%B2%D1%8B%D1%81%D1%8C%D1%82%D0%B5-%D1%81%D0%B2%D0%BE%D0%B9-%D1%83%D1%80%D0%BE%D0%B2%D0%B5%D0%BD%D1%8C-%D0%BC%D0%B0%D1%81%D1%82%D0%B5%D1%80%D1%81%D1%82%D0%B2%D0%B0-%D0%B2-javascript-es6-6488cd42be7
