Another update from ingydotnet^djgoku

Task/Perfect-numbers/JavaScript/perfect-numbers-2.js

@@ -0,0 +1,19 @@
+(function (nFrom, nTo) {
+
+  function perfect(n) {
+    return n === range(1, n - 1).reduce(
+      function (a, x) {
+        return n % x ? a : a + x;
+      }, 0
+    );
+  }
+
+  function range(m, n) {
+    return Array.apply(null, Array(n - m + 1)).map(function (x, i) {
+      return m + i;
+    });
+  }
+
+  return range(nFrom, nTo).filter(perfect);
+
+})(1, 10000);