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couchand/factorial.coffee

Created March 13, 2014 05:40
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The Little CoffeeScripter
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factorial.coffee
# the little coffeescripter
# http://weblog.bocoup.com/little-javascripter-revisited/
Y = (le) ->
((f) -> f f) (f) ->
le (args...) ->
f(f) args...
factorial =
Y (f) ->
(n) ->
return 1 if n < 2
n * f(n - 1)
console.log factorial 5 # 120
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