I learned that the Unicode character U+202E is perfect to trick your coworkers and turn everything around.
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I learned that even 'new' constructor calls are interceptable with JavaScript proxies.
I learned about handy time based git logging function perfect for your next standup.
Globals are evil โ that's what we hear all the time. Let's have a look at globals in JavaScript.
Have you ever thought about how Emoji work behind the scenes? I looked into this topic, and I pretty much felt like Alice in Wonderland: there's so much I didn't know about it!