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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.
How can I remove some specified char from a string?
In my code I got an error related to test code.I think they need to fix it?
That is good explanation thank you very much!
Actually it says "Index 1 out of bounds for length 1" in my codewars screen.
But it works on Intelijj.
I mean it might not be related to troubleshooting.
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