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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.
solution will be improved if you add "i < (arr1.length < arr2.length? arr2.length : arr1.length);" to for loop, that way if one array is longer, it will consider the longer one's length ,
The solution is usefull only if the arrays have the same length, but did you predict when the arrays have different length ???
This solution only works if both arrays are the same length. If arr2 is longer, not all numbers are added. If arr2 is shorter, you would get an index out of bounds exception.