https://www.grzegorowski.com/publishing-npm-package-with-rollup-babel-and/
https://areknawo.com/whats-what-package-json-cheatsheet/
https://scotch.io/tutorials/coding-exercise-build-javascript-array-methods-from-scratch
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Modules
https://developer.mozilla.org/en-US/docs/Mozilla/JavaScript_code_modules
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/import
https://developer.mozilla.org/en-US/docs/web/javascript/reference/statements/export