Configring node js.

node_modules/core-js/library/modules/es7.object.define-getter.js

@@ -0,0 +1,12 @@
+'use strict';
+var $export         = require('./_export')
+  , toObject        = require('./_to-object')
+  , aFunction       = require('./_a-function')
+  , $defineProperty = require('./_object-dp');
+
+// B.2.2.2 Object.prototype.__defineGetter__(P, getter)
+require('./_descriptors') && $export($export.P + require('./_object-forced-pam'), 'Object', {
+  __defineGetter__: function __defineGetter__(P, getter){
+    $defineProperty.f(toObject(this), P, {get: aFunction(getter), enumerable: true, configurable: true});
+  }
+});