I use a let at the top of the file to denote things that I want to
have as captured and constant.

... you can do things like
(let [x 1]
 (defn foo-that-uses-x [y]
  (function-here  x y)))

On Oct 2, 10:29 am, Mark <mjt0...@gmail.com> wrote:
> Is there a way to make a declaration in Clojure that cannot be rebound
> later?  Ideally, I'd like something that fails if I try to do this:
>
> (def myname "mark")
> ; ...more code, elided...
> (def myname "Mark")
>
> Perhaps this is obvious, but I see a lot of discussion of immutable
> data structures, but I can't find a way to prevent my bindings from
> changing.
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