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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.
reraised as issue
Node 18. should be enabled
No random tests
no, not in Node 10.x
TypeError: arr.flat is not a function
at arraySum (test.js:3:29)
at Context.it (test.js:8:19)
arr.flat is not a function ?!?
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