Experiment: filter keys via Object.prototype.hasOwnProperty.call

nicolo-ribaudo · Jul 7, 2020 · 491c093 · 491c093
1 parent 894ff8c
commit 491c093
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/packages/babel-plugin-transform-block-scoping/src/index.js b/packages/babel-plugin-transform-block-scoping/src/index.js
@@ -340,7 +340,9 @@ const loopVisitor = {
 
 function extendMap(map, obj) {
   for (const key of Object.keys(obj)) {
-    map.set(key, obj[key]);
+    if (Object.prototype.hasOwnProperty.call(obj, key)) {
+      map.set(key, obj[key]);
+    }
   }
 }