http://exploringjs.com/es6/ch_iteration.html
http://exploringjs.com/es2018-es2019/ch_asynchronous-iteration.html
https://codeburst.io/a-simple-guide-to-es6-iterators-in-javascript-with-examples-189d052c3d8e

2021
https://blog.logrocket.com/javascript-iterators-and-generators-a-complete-guide/
2020
https://habr.com/ru/company/mailru/blog/533822/
https://habr.com/ru/post/522864/
2019
https://webdevblog.ru/kak-perestat-boyatsya-i-poljubit-iteratory/
CodingTech - Understanding Iterators and Iterables in JavaScript
    https://www.youtube.com/watch?v=uhuGhfjqBk4
https://loige.co/javascript-iterator-patterns/
2018
https://itnext.io/iterators-and-generators-do-have-a-place-in-modern-javascript-d4cb589b491