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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.
From tooling's perspective, it is a good practice. While the return type can be inferred, the parameter's could normally be anything which is safe to convert to a number:
Gotta type those arguments.
Yeah, it's true thanks for pointing this out.
With the /i flag, specifying uppercase characters as well seems redundant.
Thank you. Good point.
You can shave zeros with .replace(/^0*/, '')