Name:Astapenko Marina
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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.
not if you don't know it's a loop
it's a loop, you can google what a loop is
why did you use it in your own solution?
Because these are no valid JavaScript functions. An array instance does not have a property
isArray. It is a method on the Array class. Please read the MDN docs.This comment is hidden because it contains spoiler information about the solution
If you don't know what "?" means, why did you use it in your solution?
This comment is hidden because it contains spoiler information about the solution
This comment is hidden because it contains spoiler information about the solution