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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.
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Neither uniqueArr or uniqueArr.push(num) are needed in your solution. You create the uniqueArr and push 'num' to it, but do nothing with uniqueArr after the fact. sum += num is handling everything.
That's very interesting. I had no idea! I was able to solve it differently but I was confused as to why it was not working.
This comment is hidden because it contains spoiler information about the solution
This comment is hidden because it contains spoiler information about the solution