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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.
Since
num = num.toString();he converted every number to a string andmap(Number)converts them back (he needs them to be in order not to mess up the reduce method).Since
num = num.toString();he converted every number to a string andmap(Number)converts them back (he needs them to be in order not to mess up the reduce method).Since
num = num.toString();he converted every number to a string andmap(Number)converts them back (he needs them to be in order not to mess up the reduce method).