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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.
the same, do u know how to fix it?
Yes, with str = '123 ' in JS we have problem. but in browser its correctly....
For some reason in the example '123 ' JS does not catch the space in strict comparison. The code works correctly in the browser