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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.
wow
This is actually very smart
An empty string will always return false, but in this case we should return true if the string ends up with no characters.
awesome
best solution
Just WOW!
Another jazz player
There are those types of people who can solve any kata using RegEx.
Amazing！！！！！！
great! learnt lots from this
best
beautiful!