util: use Object.create(null) for dictionary object

Fixes #3788 `arrayToHash()` needs to use `Object.create(null)` for its dictionary object. Refs: #3791 PR-URL: #3831 Reviewed-By: Trevor Norris <[email protected]> Reviewed-By: James M Snell <[email protected]> Reviewed-By: Colin Ihrig <[email protected]>
nodejs · Nov 16, 2015 · 9d0396c · 9d0396c
1 parent c0bac95
commit 9d0396c
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/lib/util.js b/lib/util.js
@@ -159,9 +159,9 @@ function stylizeNoColor(str, styleType) {
 
 
 function arrayToHash(array) {
-  var hash = {};
+  var hash = Object.create(null);
 
-  array.forEach(function(val, idx) {
+  array.forEach(function(val) {
     hash[val] = true;
   });