For years I did a weekly coding livestream of my React and Python work on Twitch every week, and I'm getting back into it again. This is what sticks out to me as the most valuable learnings from those experiences.
If you come across array.filter(Boolean) in JavaScript code, never fear! It's a handy bit of functional programming that cleans up arrays with null and undefined values in them.
If you're dealing with Open Graph metadata for your site, and you can't figure out how to get your OG content to update after you make changes, this is your guide.