some stylistic changes

aleen42 · Dec 13, 2019 · 6dcf223 · 6dcf223
1 parent cf3678f
commit 6dcf223
Showing 1 changed file with 19 additions and 18 deletions.
diff --git a/packages/core-js/internals/object-create.js b/packages/core-js/internals/object-create.js
@@ -5,45 +5,46 @@ var hiddenKeys = require('../internals/hidden-keys');
 var html = require('../internals/html');
 var documentCreateElement = require('../internals/document-create-element');
 var sharedKey = require('../internals/shared-key');
-var IE_PROTO = sharedKey('IE_PROTO');
 
+var IE_PROTO = sharedKey('IE_PROTO');
 var PROTOTYPE = 'prototype';
-var Empty = function () { /* empty */ };
+var EmptyConstructor = function () { /* empty */ };
 
 // Create object with fake `null` prototype: use iframe Object with cleared prototype
-var createDict = function () {
+var NullProtoObject = function () {
   // Thrash, waste and sodomy: IE GC bug
   var iframe = documentCreateElement('iframe');
   var length = enumBugKeys.length;
-  var lt = '<';
-  var script = 'script';
-  var gt = '>';
-  var js = 'java' + script + ':';
+  var GT = '>';
+  var LT = '<';
+  var SCRIPT = 'script';
+  var JS = 'java' + SCRIPT + ':';
   var iframeDocument;
   iframe.style.display = 'none';
   html.appendChild(iframe);
-  iframe.src = String(js);
+  // https://github.com/zloirock/core-js/issues/475
+  iframe.src = String(JS);
   iframeDocument = iframe.contentWindow.document;
   iframeDocument.open();
-  iframeDocument.write(lt + script + gt + 'document.F=Object' + lt + '/' + script + gt);
+  iframeDocument.write(LT + SCRIPT + GT + 'document.F=Object' + LT + '/' + SCRIPT + GT);
   iframeDocument.close();
-  createDict = iframeDocument.F;
-  while (length--) delete createDict[PROTOTYPE][enumBugKeys[length]];
-  return createDict();
+  NullProtoObject = iframeDocument.F;
+  while (length--) delete NullProtoObject[PROTOTYPE][enumBugKeys[length]];
+  return NullProtoObject();
 };
 
+hiddenKeys[IE_PROTO] = true;
+
 // `Object.create` method
 // https://tc39.github.io/ecma262/#sec-object.create
 module.exports = Object.create || function create(O, Properties) {
   var result;
   if (O !== null) {
-    Empty[PROTOTYPE] = anObject(O);
-    result = new Empty();
-    Empty[PROTOTYPE] = null;
+    EmptyConstructor[PROTOTYPE] = anObject(O);
+    result = new EmptyConstructor();
+    EmptyConstructor[PROTOTYPE] = null;
     // add "__proto__" for Object.getPrototypeOf polyfill
     result[IE_PROTO] = O;
-  } else result = createDict();
+  } else result = NullProtoObject();
   return Properties === undefined ? result : defineProperties(result, Properties);
 };
-
-hiddenKeys[IE_PROTO] = true;