Task

Create a variable with a user-defined name.

The variable name should not be written in the program text, but should be taken from the user dynamically.



See also
   Eval in environment is a similar task.


 
      is←{ t←⍵ ⋄ ⎕this⍎⍺,'←t' } ⍝⍝ the 'Slick Willie' function ;)
      'test' is ⍳2 3
      test
 1 1  1 2  1 3 
 2 1  2 2  2 3 
 