Array mutation - https://launchschool.com/posts/6b1cde9b
Practice problems - https://github.com/dereknovak/RB110-LS/blob/main/markdown_practice.md
Ruby speak - https://medium.com/@derek.novak1/the-art-of-speaking-like-a-ruby-programmer-cfc321bf3157
Array mutation - https://launchschool.com/posts/6b1cde9b
Practice problems - https://github.com/dereknovak/RB110-LS/blob/main/markdown_practice.md
Ruby speak - https://medium.com/@derek.novak1/the-art-of-speaking-like-a-ruby-programmer-cfc321bf3157