This is a more streamlined version of what I did. I'm glad to see I'm starting to improve 😭

Nice solution, I did almost the same but a few lines longer. This is how I first learned about the "Set" method.

это обсуфикация кода, Braifuck

yea, I completely agree

For me to even think in this direction shows I'm improving gradually.

I wished I used a Set for this one. This solution makes me feel dumb. lol.

Greate job bro.

Thanks today i learned that spreading the Set inside the array will to same job as
Array.From()

Perfect!

This is general knowledge...

This makes me feel reaaaaaaaaaaaaally stupid right now. :( At least my solution worked, but this is art haha

I don't it should be considered 'best practice' to use non builtin commands like sed when there is an easy builtin solution like string manipulation in this case.

Great solution

You didn't filter for [a-z] factor though.