I've got strange behavior playing with sparse arrays:

   1 (<0 1)} ($. 1 1 $ 0) ,"1 1 ,: 0
 | 0 1

I suspect that J decides to present the whole array - not an item of it - in 
uncompressed form, so there is no element left of |. I expected something like

0 1|1

so this output looks strange. When it's supposed to look like this?

Alex


      
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