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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.
What language are you having this problem with? Help us help you!
The JS tests are written quite badly, polluting the global namespace all over the place. Other languages may have the same problem, esp. if they were written by the same person ( possibly the original author ).
Just use
b.If it is Python, the test is ok and the expected value is
"This si a tset". Print the input to see why.not an issue, a question (issue==problem in the kata itself / question==any other kind of problem)
For your current problem: print the inputs to the console, then debug your algo. ;)