> (let [x nil]
> ;; do something and modify 'x'
> )
>
>how does one modify the value of 'x' ?
Hi Chick, there's nothing stopping you re-binding x within the let
construct, eg;
(defn myfn [x]
(let [x (if (or (nil? x) (< x 0.2)) 0.0 x)
x (if (>= x 0.8) 1.0 x)]
(do-something-with x)))
That technique helps a lot of the times you think you need mutable
variables. Nested lets are also useful.
-Rgds, Adrian.
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