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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.
Use spoiler flag when posting code like that, please.
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Trying to learn from white katas is usually a bad idea because like >90% of the people who're voting on best practice are noobs who have no idea what they're voting on. (And then there are 5% who complains at concise code for not being their familiar Java-like code...)
The best way is to always look 10 solutions from the top and not just 1. This way you can see different ways and practices of doing the same thing.
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This comment is hidden because it contains spoiler information about the solution
This comment is hidden because it contains spoiler information about the solution
What's the second argument that takes the function?
This comment is hidden because it contains spoiler information about the solution
This comment is hidden because it contains spoiler information about the solution