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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.
Everything was working fine for me, I defused every bomb except the last one, understood what was needed, got "true" in the last statement, but tests were not passing. Couldn't understand what is wrong and looked up the answer for the last one. I rewrote Array.prototype.toString and it was working fine for me, but they rewrote Array.prototype.valueOf and it is working the same way, but only their variant is working in this kata. How should I find that out by myself?
it really helped. Thanks!