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Collections are a way for you to organize kata so that you can create your own training routines. Every collection you create is public and automatically sharable with other warriors. After you have added a few kata to a collection you and others can train on the kata contained within the collection.
Get started now by creating a new collection.
does ...arr join items alltogether?
thanks, bro!
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Spread_syntax
Takes an array and spreads it out over several arguments.
what is that? what should i read to know this?
This was my choice too. I wonder if anyone has done a speed/efficiency comparison between this method and the original one suggested in the kata (map and join). Does it depend on how many items are in the array?
Very clean, I like this one