meteor-node-stubs/node_modules/has-proto/index.js

Stub implementations of Node built-in modules, a la Browserify

'use strict';

var test = {
	foo: {}
};

var $Object = Object;

module.exports = function hasProto() {
	return { __proto__: test }.foo === test.foo && !({ __proto__: null } instanceof $Object);
};