# Primitives

## Numbers

* [What Every Programmer Should Know About Floating-Point Arithmetic](https://floating-point-gui.de/)

## Strings and Unicode

* <http://utf8everywhere.org/>
* Emoji:
  * <https://twitter.com/nikitonsky/status/1374708112272322568> - working with emoji thread.&#x20;
  * [Emoji under the hood](https://tonsky.me/blog/emoji/), \[[русский](https://m.habr.com/ru/company/itelma/blog/549366/)]

## Date Time

* [UTC is enough for everyone...right?](https://zachholman.com/talk/utc-is-enough-for-everyone-right)

## RegEx

* <https://regexone.com/> - упражнения&#x20;
* <https://regexr.com/>&#x20;
* <http://www.txt2re.com/>
* <https://jex.im/regulex/#!flags=&re=%5E(a%7Cb)*%3F%24>
* <https://www.cheatography.com/davechild/cheat-sheets/regular-expressions/>

##

[<br>](https://zachholman.com/talk/utc-is-enough-for-everyone-right)