Configring node js.

node_modules/core-js/modules/es7.object.lookup-setter.js

@@ -0,0 +1,18 @@
+'use strict';
+var $export                  = require('./_export')
+  , toObject                 = require('./_to-object')
+  , toPrimitive              = require('./_to-primitive')
+  , getPrototypeOf           = require('./_object-gpo')
+  , getOwnPropertyDescriptor = require('./_object-gopd').f;
+
+// B.2.2.5 Object.prototype.__lookupSetter__(P)
+require('./_descriptors') && $export($export.P + require('./_object-forced-pam'), 'Object', {
+  __lookupSetter__: function __lookupSetter__(P){
+    var O = toObject(this)
+      , K = toPrimitive(P, true)
+      , D;
+    do {
+      if(D = getOwnPropertyDescriptor(O, K))return D.set;
+    } while(O = getPrototypeOf(O));
+  }
+});