@@ -344,13 +344,12 @@ helpers.objectWithoutPropertiesLoose = helper("7.0.0-beta.0")`
     if (source == null) return {};
 
     var>
-    var sourceKeys = Object.keys(source);
-    var key, i;
 
-    for (i = 0; i < sourceKeys.length; i++) {
-      key = sourceKeys[i];
-      if (excluded.indexOf(key) >= 0) continue;
-      target[key] = source[key];
+    for (var key in source) {
+      if (Object.prototype.hasOwnProperty.call(source, key)) {
+        if (excluded.indexOf(key) >= 0) continue;
+        target[key] = source[key];
+      }
     }
 
     return target;
 
@@ -1,14 +1,12 @@
-import _Object$keys from "core-js-pure/features/object/keys.js";
 import _indexOfInstanceProperty from "core-js-pure/features/instance/index-of.js";
 export default function _objectWithoutPropertiesLoose(source, excluded) {
   if (source == null) return {};
   var target = {};
-  var sourceKeys = _Object$keys(source);
-  var key, i;
-  for (i = 0; i < sourceKeys.length; i++) {
-    key = sourceKeys[i];
-    if (_indexOfInstanceProperty(excluded).call(excluded, key) >= 0) continue;
-    target[key] = source[key];
+  for (var key in source) {
+    if (Object.prototype.hasOwnProperty.call(source, key)) {
+      if (_indexOfInstanceProperty(excluded).call(excluded, key) >= 0) continue;
+      target[key] = source[key];
+    }
   }
   return target;
 }