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
The expected result is correct. To see the problem of yor code try
console.log(30000000300000000+7). This produces 3000000030000010 instead of 300000030000007.There is a way to resolve the problem without using an accumulator with such enormous numbers.