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.
This comment is hidden because it contains spoiler information about the 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
This solution avoids using Array.filter() for two reasons:
Array.filter() maintains and returns a separate copy of an array containing all filtered elements. This is heavy code and shouldn't be used when all we're doing is testing the elements of an array against the passed predicate.
Array.filter() must examine all elements of the array and collect items that satisfy the passed predicate. Again, this is not optimal when we could simply terminate the loop once our predicate is false.