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Programming Paradigms
Introduction to Functional Programming in Scheme
The let* name binding construct

It is often useful to be able to use previous name bindings in a let construct, which binds several names



 
(let* ((n<sub>1</sub> e<sub>1</sub>)
       ...
       (n<sub>i-1</sub> e<sub>i-1</sub>)
       (n<sub>i</sub> e<sub>i</sub>)
       ...
       (n<sub>k</sub> e<sub>k</sub>))
    body-expr)

  • Characteristics of let*:

    • It is possible to refer to n1 through ni-1 from the expression ei

    • Syntactic sugar for k nested let name bindings