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Task/Averages-Simple-moving-average/Sidef/averages-simple-moving-average-2.sidef

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+class sma_generator(period, list=[], sum=0) {
+
+    method SMA(number) {
+        list.append(number)
+        sum += number
+        if (list.len > period) {
+            sum -= list.shift
+        }
+        (sum / list.len)
+    }
+}
+
+var ma3 = sma_generator(3)
+var ma5 = sma_generator(5)
+
+for num in [@|(1..5), @|(1..5 -> flip)] {
+  printf("Next number = %d, SMA_3 = %.3f, SMA_5 = %.1f\n",
+    num, ma3.SMA(num), ma5.SMA(num))
+}