What is the Clojure best practice, if there is one, for writing a
function like this:
pre
(defn integral [integrand initial-value dt]
(def --integral (cons initial-value
(lazy-seq (add-streams (scale-
streams integrand dt)
--integral
--integral)
/pre
Use let:
(defn foo [...]
(let [helper (fn [...] ...)]
(helper ...)))
or letfn:
(defn foo [...]
(letfn [(helper [...] ...)]
(helper ...)))
The latter allows you to introduce mutually recursive functions.
Sincerely,
Michał
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don't use def inside functions, ever. in scheme define is lexically scoped,
so you do that sort of thing. clojure is not scheme. if you want a lexically
scoped function use a lexical scoping construct like let or letfn.
On Mon, Feb 8, 2010 at 12:12 PM, Brenton bashw...@gmail.com wrote:
What is
letfn is exactly what I was looking for.
Thank you.
On Feb 8, 12:15 pm, Michał Marczyk michal.marc...@gmail.com wrote:
Use let:
(defn foo [...]
(let [helper (fn [...] ...)]
(helper ...)))
or letfn:
(defn foo [...]
(letfn [(helper [...] ...)]
(helper ...)))
The latter
