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Add second example for paramsfn.

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Chris O'Donnell 2016-06-14 16:50:25 -04:00
parent adef93ecba
commit 6cb2dfceb4
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List-of-Macros.md
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@ -291,4 +291,9 @@ Helper macro for defining filter functions with late binding parameters.
[2 7 3 4 8] [2 7 3 4 8]
=> (transform [ALL (less-than-n-pred 9)] inc [2 7 3 4 10 8]) => (transform [ALL (less-than-n-pred 9)] inc [2 7 3 4 10 8])
[3 8 4 5 10 9] [3 8 4 5 10 9]
;; bot and top are late bound parameters
;; x represents the current structure for the navigator
=> (def between (comp-paths (paramsfn [bot top] [x] (and (< bot x) (< x top)))))
=> (select [ALL (between 1 5)] (range 10))
[2 3 4]
``` ```