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.
This comment is hidden because it contains spoiler information about the solution
The "==" should be "===", in order to be the strictest possible.
Let's not*. I merely mentioned what can be done, I did not claim it is good practice. Understanding why it works might however lead to useful insights, or give you ideas when playing code golf.
which instantly makes it harder to read, so lets dont do that.