shape

Shape

^x

Supported in	k3, kona
Not supported in	k4, oK, ngn/k, k9

shape is a primitive that returns the list of lengths along all axes of a uniform array. For ragged arrays it returns only as many items as there are levels of uniformity.

 ^(0 1 2;"ab",`c)
2 3
 ^(0 1 2;"abcd")
,2

For rectangular arrays, it can be implemented as :

 d:-1_#:'*:\
 
 d[+4 3#1]
3 4