Configring node js.

node_modules/core-js/modules/_hide.js

@@ -0,0 +1,8 @@
+var dP         = require('./_object-dp')
+  , createDesc = require('./_property-desc');
+module.exports = require('./_descriptors') ? function(object, key, value){
+  return dP.f(object, key, createDesc(1, value));
+} : function(object, key, value){
+  object[key] = value;
+  return object;
+};