3.23 Blocks: block
|(require racket/block)||package: base|
The bindings documented in this section are provided by the racket/block library, not racket/base or racket.
(block defn-or-expr ...)
Supports a mixture of expressions and mutually recursive definitions, as in a module body. Unlike an internal-definition context, the last defn-or-expr need not be an expression.
The result of the block form is the result of the last defn-or-expr if it is an expression, #<void> otherwise. If no defn-or-expr is provided (after flattening begin forms), the result is #<void>.
The final defn-or-expr is executed in tail position, if it is an expression.