- (let-once ((IDENTIFIER EXPR) ...) BODY ...)syntax
Binds IDENTIFIER to the result of evaluating EXPR and evaluates BODY. On any subsequent evaluation of the let-once form, the result of EXPR is re-used and evaluation of EXPR is skipped.
Binds IDENTIFIER to the result of evaluating EXPR and evaluates BODY. On any subsequent evaluation of the let-once form, the result of EXPR is re-used and evaluation of EXPR is skipped.