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.
@eijni Thanks about the tip. I was not sure if you had to tag as a spoiler for comments also :) I'm new to this discuss board.
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please use spoiler flag when writing comments that may reveal solution since it's visible in discourse ~~
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Even simpler than I thought :)
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This does not check if the array is a valid matrix
Not best practice because this mutates the original array.