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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.
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Amazing and clear explanation! Thanks westphalen!
It uses the mathematical understanding of a set, but you can think of it as a hashmap with only keys and no values, so unordered (can't use sort) and no duplicates.
Yeah! I just did some code breaking on VSCode an reached the same conclusion, the [...new Set(s1+s2)] seemed to weird I had to see what was happening. clever, but bad practice
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