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Task/Time-a-function/Sidef/time-a-function.sidef

@@ -0,0 +1,20 @@
+var benchmark = frequire('Benchmark')
+
+func fac_rec(n) {
+    n == 0 ? 1 : (n * __FUNC__(n - 1))
+}
+
+func fac_iter(n) {
+    var prod = 1
+    n.times { |i|
+        prod *= i
+    }
+    prod
+}
+
+var result = benchmark.timethese(-3, Hash(
+    'fac_rec'  => { fac_rec(20)  },
+    'fac_iter' => { fac_iter(20) },
+))
+
+benchmark.cmpthese(result)