Programmer's Guide & Language Reference - Dyalog Limited

Chapter 1: Introduction 36Namespace ReferencesA namespace reference, or ref for short, is a unique data type that is distinct from andin addition to number and character.Any expression may result in a ref, but the simplest one is the namespace itself:)NS NS1NS1.A←1NS1.B←2 3⍴⍳6⍝ Make a namespace called NS1⍝ and populate it with variables A⍝ and B#.NS1NS1You may assign a ref; for example:#.NS1X←NS1X⍝ expression results in a refIn this case, the display of X informs you that X refers to the named namespace#.NS1.You may also supply a ref as an argument to a defined or dynamic function:∇ FOO ARG[1] ARG∇#.NS1FOO NS1The name class of a ref is 9.9⎕NC 'X'You may use a ref to a namespace anywhere that you would use the namespace itself.For example:11 2 34 5 6X.AX.B