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.
In that error message
'y'
is what your function returned, not the input value, to see what it is, print it: https://docs.codewars.com/training/troubleshooting#print-inputCan't understand what is wrong with this error "expected 'y' to equal 'e6y'". Normal test passed, but full test has mistake. If I put 'y' I must return the same 'y'. What wrong?