4.21 Void

4.14 Boxes

4.19 Sets

4.21 Void

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The constant #<void> is returned by most forms and procedures that have a side-effect and no useful result.

The #<void> value is always eq? to itself.

procedure
(void? v)→boolean?
v:any/c

Returns #t if v is the constant #<void>, #f otherwise.

procedure
(void v...)→void?
v:any/c

Returns the constant #<void>. Each v argument is ignored.