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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.
I think that my solution is better and more productive :)
This comment is hidden because it contains spoiler information about the solution
Perhaps use toLowerCase before replace, so that you only need [a-z]? Or you could still do [a-z] with /gi, but I think the previous option was better.
I like the reverse approach :)
Pure brilliance!
very clever approach.
You are correct.
Just a small detail: \w refers to
[a-zA-Z0-9_](so it also contains the underscore and digits).