Loading collection data...
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.
He did not do the same thing. The .sort() method has a time complexity of O(n log(n)). This algo can be solved with one simple for loop as seblm described with a time complexity of O(n), which will be far more performant as your array grows in size.