Protractor throwing unexpected token export

Question

I'm trying to get a protactor test running. But when making use of module it throws the below. I'm quite new to ES6 how to configure it.

export { getFreePort }; ^^^^^^ SyntaxError: Unexpected token export at Object.exports.runInThisContext (vm.js:76:16) at Module._compile (module.js:513:28) at Module._extensions..js (module.js:550:10) at Object.require.extensions.(anonymous function) [as .js] (C:\\Dev\\Code\\JG.Crowdfunding.Website\\node_modules\\babel-register\\lib\\node.js:156:7) at Module.load (module.js:458:32) at tryModuleLoad (module.js:417:12) at Function.Module._load (module.js:409:3) at Module.require (module.js:468:17) at require (internal/module.js:20:19) at Object. (C:\\Dev\\Code\\JG.Crowdfunding.Website\\protractor.conf.js:4:18)

My babelrc file has

{ "presets": ["es2015"] }

The imported file where the error occurs looks like

var freeport = require('freeport');

var getFreePort = function () {
return new Promise((fulfill, reject) => {
    freeport((err, port) => {
        if (err) {
            console.log('ERROR: Something went wrong while trying to find a free port.');
            reject(err);
        }
        fulfill(port);
    });
});
};

export { getFreePort };

And inside my protractor.conf onPrepare function I have.

  onPrepare: function () {
return portHelper.getFreePort().then(port => {
  fakeApiServer.startFakeApiServer(port);
}).then(() => {
  return browser.driver.manage().window().maximize();
})}

and I'm doing the following further up in the protractor.conf

require('babel-core/register');
var portHelper = require('./test/e2e/helpers/portHelper');

Thanks

Answer 1

在此行中，您需要在括号中添加port ： return portHelper.getFreePort().then(port => {

Answer 2

As it turns out my error was that babel-register ignores the node_modules folder. In order to solve my problem I needed to do

require('babel-core/register')({ ignore: false });

Instead of just

require('babel-core/register');