List comprehensions: Difference between revisions

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@@ Line 998: / Line 998: @@
          range = (m, n) => Array.from({
              length: (n - m) + 1
-         }, (_, i) => m + i);
+         }, (_, i) => m + i),
+         xs = range(1, n);
-     return flatMap(range(1,     n), x =>
+     return flatMap(xs,          x =>
-            flatMap(range(1 + x, n), y =>
+            flatMap(xs.slice(x), y =>
-            flatMap(range(1 + y, n), z =>
+            flatMap(xs.slice(y), z =>
                  x * x + y * y === z * z ? [