Consecutive numbers
Write a function that takes a string of digits. Try to break up the digits into consecutive integers. If you can, return them, otherwise, return nil
.
Examples
(consec "121314") ;=> [12 13 14]
(consec "121315") ;=> nil
(consec "444445") ;=> [444 445]
(consec "12") ;=> [1 2]
(consec "1") ; throws error
Thanks to this site for the challenge idea where it is considered Expert in JavaScript.
Please submit your solutions as comments on this gist.
The challenge is interesting because it is hard to find good separation of conserns.
Because of different amount of digits for numbers in the sequence it is hard to separate parsing of numbers from checking whether they are consecuitive.