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.
There is no such thing as a null array, only
nullorempty array. In the current context,strwill never benulltoo, just an empty string, and output will be an empty array as expected. Sample and fixed tests already have such cases, so closing.This comment is hidden because it contains spoiler information about the solution
yes