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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.
Can't you make this one for loop, that then checks the 2 condition .
Well, good structured. But not an efficient approch. It can be in O(1) complexity. Yours is O(n)
thnx
well Structured :) !!!
i always get the probleme of Cannot read property 'toUpperCase' of undefined