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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.
hash.revert will not sort name.
{"kay"=>77, "john"=>14, "alice"=>77}.invert #=> {77=>"alice", 14=>"john"}the anwer is alice{"alice"=>77, "john"=>14, "kay"=>77}.invert #=> {77=>"kay", 14=>"john"}the answer is kaySo I think your solution does not yet solve the problem. am I right?