Update permutations & combinations

mgechev · mgechev · commit e4a7e2d93b0e · 2014-11-11T22:51:35.000+02:00
diff --git a/src/combinatorics/combinations.js b/src/combinatorics/combinations.js
@@ -18,7 +18,10 @@
     return function (arr, k) {
       res = [];
       combinations(arr, k, 0, 0, []);
-      return res;
+      var temp = res;
+      // Free the extra memory
+      res = null;
+      return temp;
     };
   }());
 
diff --git a/src/combinatorics/permutations.js b/src/combinatorics/permutations.js
@@ -32,7 +32,10 @@
     return function (arr) {
       res = [];
       permutations(arr, 0);
-      return res;
+      var temp = res;
+      // Free the extra memory
+      res = null;
+      return temp;
     };
   }());
 
