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.
actually whenever a program runs for the first time then static scope is runned once so it's used for initiallization. However if the program runs again then this static block will be skipped so yeah it good to use this.
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Closing.
This comment is hidden because it contains spoiler information about the solution
Could you please show the code you have written. The error might be caused by which array you have returned.