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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.
devils in the detail with this one
good shot
=)
needs random tests
Java translation kumited. Hope it's okay!
The function
Number.isSafeInteger()itself is assigned to thevar SafeIntegerand so SafeInteger inherits the properties of isSafeInteger. Basically, SafeInteger is an alias to Number.isSafeInteger.