Function/Operator/Hyperator Assignment

A←f assigns the function f to A. A←op1 assigns the monadic operator op1 to A. A←op2 assigns the dyadic operator op2 to A.

A is an assignable name, f, op1, and op2 are an arbitrary function, monadic or dyadic operator, respectively.

For example, the function RankEach←⍴∘⍴¨ when applied to an array, returns the number of dimensions of each item.