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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.
Isn't the
pageIndexfunction wrong in case you ask for the last item at the end of the array (the item which equals tocollection.length)?It's returning -1 instead of the page index that equals to the last page.
This works because the test used in this kata doesn't check for the very last item of the array.
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