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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.
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I think you solved the exercise as intendid.
I was a bit consfused by this at first but after some exploring I think I get it now.
When you did
HumanSkin.prototype = new Cylon()
You created a property for all new HumanSkins called model. But since you never passed a model to
the new Cylon() you were inheriting from, model was left as undefined. Therefor you had to define a model of your own
within HumanSkin.
I hope that makes sense. Anybody, please correct me if I'm wrong.