RosettaCodeData/Task/Averages-Arithmetic-mean/CoffeeScript/averages-arithmetic-mean.coffee

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CoffeeScript
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2013-04-10 14:58:50 -07:00
mean = (array) ->
return 0 if array.length is 0
sum = array.reduce (s,i,0) -> s += i
sum / array.length
alert mean [1]