Alan,
Your with-default fn is neat. So it appears there's no
idiomatic/built-in clojure fn/macro to do parsing and wrapper functions such
as follow would be needed to avoid typing the whole expression every time.
(def parse-double (with-default #(Double. %) 0.0))
(def parse-int (with-default #(Integer. %) 0))
...
Thanks,
siyu
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