2019
https://dev.to/emmabostian/regex-cheat-sheet-2j2a
    https://habr.com/ru/post/506994/
http://exploringjs.com/impatient-js/ch_regular-expressions.html
https://www.smashingmagazine.com/2019/02/regexp-features-regular-expressions/
2018
https://tuhub.ru/frontend/js-regexp