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.
You still have to use toLowerCase. localCompare just takes care of the a>b 1, b>a, -1, 0 conditions as Shaun said.
This comment is hidden because it contains spoiler information about the solution
LocalCompare returns a sort order (-,+, 0) to use nicely with a sorting function. It also supports locales but not really necessary here.