I want to get the (base 10) digits of an integer as an array.
e.g. 2343 becomes an array 2 3 4 3
My attempt is:

  tens =. 10 $ 10   tens #: 345
result: 0 0 0 0 0 0 0 3 4 5
I created the initial array tens as a 10 element array, and f course now I have 
way too many leading zeros in my result.
How should I do this properly, returning no leading zeros, for an arbitrary 
size integer?
Thanks.                                           
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