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.
I don't have much deep knowledge about this topic, but... I feel like this code runs 2 diffirent loops? One of them for creating the array from the argument, one of them for the filter method? I am told that this is not a good practice, especially for longer arguments because it takes lots of resources from the computer. But... I always feel like this is more elegant solution.
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Hello.
I am very new in JavaScript, and trying to understand the solutions here. In this code, what does "c" parameter do? Where the arrow function get that parameter? Could someone explain please?