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.
Got it
The last part is wrong, hope that's enough for you to fix it. Check your regular expression here: regex101.com
This comment is hidden because it contains spoiler information about the solution
Check how to use proper markdown to see the real code you pasted there
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I don't understand if the function should return that there is at least one rainbow in the case where the elements are there but not in order.
For example, is there 'RED' in 'DER'?