Initial data commit

Task/Averages-Mode/CoffeeScript/averages-mode.coffee

@@ -0,0 +1,13 @@
+mode = (arr) ->
+  # returns an array with the modes of arr, i.e. the
+  # elements that appear most often in arr
+  counts = {}
+  for elem in arr
+    counts[elem] ||= 0
+    counts[elem] += 1
+  max = 0
+  for key, cnt of counts
+    max = cnt if cnt > max
+  (key for key, cnt of counts when cnt == max)
+
+console.log mode [1, 2, 2, 2, 3, 3, 3, 4, 4]