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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.
It's not cheating.
A basic rule of programming is "Do not reinvent the wheel!"
But effective!
I was having this problem as well (with the first term of fibonacci being 'I7').
I finally tracked it down to not having all of my memory locations defaulting to 0.
In the ruby implementation, I think you are missing the ampersand on the lambda when you are calling bind in the tests.
such as: Test.assert_equals bind([1,2,3], &->(n){[n]}), [1,2,3]
versus: Test.assert_equals bind([1,2,3], ->(n){[n]}), [1,2,3]
without them, I keep getting this error:
bind': wrong number of arguments (2 for 1) (ArgumentError) from'