On Sun, Sep 15, 2013 at 9:26 AM, Andre Mayers <andre.may...@usherbrooke.ca> wrote: > Another way to ask the question is why is it possible to execute > (let ([x 'uuu]) > (set! x 'a) > x) >
This: 1. creates a binding [x => 'uuu] 2. changes that same binding to [x => 'a] 3. gives the value of that binding > and > > (let ([x 'uuu]) > (define x 'a) > x) This: 1. creates a binding [x => 'uuu] 2. creates a different binding [x => 'a] that shadows the existing binding of x 3. gives the value of the *visible* binding of x, namely 'a ____________________ Racket Users list: http://lists.racket-lang.org/users
