Node 8 Es6 Import

js is the ES6 transpiler and es6-module-loader. 6 Isn't the ES6 specification very big? 2. Both for clients as in house. As there is a lack of concise information laying. ) and play around. 4 Does it still make sense to learn ECMAScript 5? 2. До появления ES6, чтобы сделать концепцию модулей были придуманы Common JS (к нему относится require), AMD, UMD и т. 31 of the V8 engine. With the ES6, the syntax of modules was defined. exports and require) or the new ES6 modules? Note: As at NodeJS v11, ES6 modules are not supported in NodeJS. 安装好之后,执行以下命令来查看Node. js script, by creating the async function and immediately calling it. But the original posting is outdated since babel is now split in serveral modules. The other day I needed to hunt down a bug in one of my tests written in ES6, which at time of writing is not fully supported in Node. x-dev branch. js'; sem precisar de {} ou * as foo. If you have code that you don't want compiled in, you can use an externs file to define the interface to that code, but we don't currently have a way to write an externs file for an ES6 module, so that imports of that module are left alone. js 환경에서 웹 어플리케이션을 만들다보면, 일일히 수작업으로 하기에 귀찮은 작업들이 존재합니다. Angular 8 has arrived and with it a bunch of workflow and performance improvements. An ES6 Class Example. import может загружать часть модуля и может работать асинхронно, require сканирует папку node_modules. if you have have used Node. js を ECMAScript 2015 (ES6) で書かれた JavaScript で動かせるようにしていきます。. actuellement NodeJS utilise uniquement la syntaxe CommonJS pour charger les modules, et si vous voulez vraiment utiliser la syntaxe standard des modules ES2015, vous devez soit le transpiler à l'avance ou utiliser un. Previously es6 was not supported to all the browsers but now most of the browsers supporting these tools but still there are some browsers which are not supported by ES6. import because 'soon' Node. We need to install it as a dev dependency:. The webpack 2 release came with built-in support for ES2015 modules (alias harmony modules) as well as unused module export detection. LoopBack 4 now offers a new feature: inclusion of related models! This addition not only simplifies querying data in LoopBack 4, but since we have similar features in LoopBack 3 it also closes one feature gap between LoopBack 3 as well. 10,How To Enable ES6 Imports in Node. js generated app. js has been using the CommonJS standard since years, the browser never had a module system, as every major decision such as a module system must be first standardized by ECMAScript and then implemented. PS: Leave a comment saying what's your opinion on the next-generation javascript and what you thought about this. Node-RED Library. For more details, have a look at the following resources that I've used to make this overview. Host and deploy Node. You might have already seen the weird sounding let in ES6 code. This library is not made as alternative to another libraries, it's has own pros and cons. js 中使用 import / export. stop() (etc). js Collection - Medium describes the reasons for it. Today, in 2017, many evergreen browsers support ES6 Modules out of the box. js: Guy Bedford's node-es-module-loader provides a Node. js and Babel to transpile ES6 to ES5. The app complains : Unexpected token import I started the app on my windows 10 desktop, with node 6. This sample should work fine in NodeJS 8+. It seems to have improved since I last looked and ES6 will probably suffice performance-wise. ES6 is a version of ECMAScript (ES), which is a scripting language specification standardized by ECMA international. Things like destructuring, are still 10x slower in Node 5. Setting up React for ES6 with Webpack and Babel ReactJS has been taking the world of front end development by storm. To expand further, using rollup for your development build may be the easiest choice, but if you have other libraries that work in this fashion I'd be curious to know which and see if I can reverse engineer it. After hours (dare I say days!?!) of trying to find a tutorial that didn’t assume knowledge and thus didn’t miss out crucial steps, to tutorials that created an app that were much more complicated and intricate than it needed. Thankfully, it's easy to bring all the Babel goodness with you to the backend, and that's exactly what this lesson covers. Importing modules using ES6 import, and exporting using ES6 export; Are there any performance benefits? Is there anything else that we should know if we were to use ES6 modules over Node ones? Thanks in advance. 3 How do I migrate my ECMAScript 5 code to ECMAScript 6? 2. Described by its own homepage as the V in MVC, React allows you to build reusable UI components and makes maintaining changes in your data’s state effortless by abstracting the DOM. The V8 Engine is swiftly approaching spec-compliance, and Node ships with a good selection of ES2015 features ready for production. I search over google and try to find out reason but I am not satisfied. As we said earlier, ES6 modules are recognized by Node. Using Flow with Parcel is as simple as placing // @flow as the first line of your js files. 10, if you remove babel. There are 4 types of exports: 1— Named exports (several per module) 2— Default exports (one per module) 3 — Mixed named & default exports 4— Cyclical Dependencies. We already know what is tweening and why it's need, so there no need to describe it's, Google will do this if you want. Transpilation is the process of converting code from one language into its counterpart equivalent. js versions installed on your system, and switching between them is only a command away. js allows you to load ECMAScript 6 files and to use import in the browser. Rediscovering JavaScript: Master ES6, ES7, and ES8 [Venkat Subramaniam] on Amazon. js file, but only by explicitly making the import. ts file to provide intercepting Javascript operations. We'll take a look at the various forms of defining and importing modules. 5) an ES6 module can load a CommonJS module using import, but a CommonJS module cannot load an ES6 module. Getting Started with ES6 (ES2015) and Babel Building Resilient Systems on AWS : Learn how to design and implement a resilient, highly available, fault-tolerant infrastructure on AWS. promisify() in action # If you hand the path of a file to the following script, it prints its contents. A relevant ad will be displayed here soon. If you've used it, you might have faced the familiar relative path inclusion problem. Imports don't seem to be obtainable in Node because of the version 6. ES6 modules. Previously es6 was not supported to all the browsers but now most of the browsers supporting these tools but still there are some browsers which are not supported by ES6. Broadly speaking, the way you structure your declaration file depends on how the library is consumed. If you want to know more about the implementation status of ES6 modules in Node. js or imported from what we did in the in the first ES6 import example, however. A developer offers a brief discussion of an experiment he ran in which he wrote JavaScript code that allowed him to import npm modules from his HTML file. The ES6 Module Transpiler is a tool that takes your ES6 module and compiles it into ES5 compatible code in the CommonJS or AMD style. nodejs 发布已有多时,版本 log 重点说明从此 nodejs 开始原生支持 ES6,这让许多开发者都 happy 了一下。 笔者立刻将原来的一个小 server 框架改成 ES6 语法,但是: WTF!~~~说好的全部原生支持呢?import / export各种报错,加了--es_staging,也不行,人与人之前的信任呢?. ES6 is here, and it comes with modules. js (Xem lại: Cài đặt Node. Babel helps us because it is a transpiler. Your examples are using Node. js to play it right now. By keeping up-to-date with the latest releases of this engine, we ensure new features from the JavaScript ECMA-262 specification are brought to Node. My ES6 in Depth series consists of 24 articles covering most syntax changes and features coming in ES6. js, where modules-as-functions is very common? That is, given a future in which V8 supports ES6 modules:. Babel is an ES6 to ES5 transpiler that supports all of the ES6 features. For this, we will use ES6 Shim. Today, in 2017, many evergreen browsers support ES6 Modules out of the box. js ATM does not support import syntax), we need to install babel-core and babel-loader. 자바스크립트에는 지금까지 C(#include)나 JAVA(import)의 모듈시스템이 활성화되지 않았을까? 자바스크립트는 호이스팅이 되는 관계로 변수나 함수가 전역에서 사용할 수 있었기 때문에 이름으로 충돌을 일으키는 경우가 많아서 이용하기 어려웠다. html file, not. In the short blogpost, you are going to learn about them! One of the most requested features of Node. js and Babel to transpile ES6 to ES5. js Events Node. mjs extension. Remember that TypeScript is a superset of JavasScript , meaning that all valid JavaScript is also valid TypeScript. So you can mock them using mock functions. *FREE* shipping on qualifying offers. Operands: Represents the data. While the syntax is conformant to ES6, the implementation is not. The BCP-47 language code to use for translation. ECMAScript modules are the official standard format to package JavaScript code for reuse. We can use the power of ES6 to create a server side app using node. To expand further, using rollup for your development build may be the easiest choice, but if you have other libraries that work in this fashion I'd be curious to know which and see if I can reverse engineer it. js 要有预先探知文件模块类型的机制。 在多种方案中挣扎后,我们觉得闹心程度最低的是引入一个新的 *. js (Xem lại: Cài đặt Node. Correctly uses configured file paths for fileWatcher. js development, i. 7 Components Use Angular Component Router (not the constantly changing Angular 2 Router) Bootstrap an ES6 Angular 1. ES6 모듈 만들고 사용하기. That is the key difference between TypeScript and ES6. 6 Isn’t the ES6 specification very big? 2. js: How to mock the imports of an ES6 module Written by Federico Posted on July 18, 2017 March 30, 2018 Leave a comment The package mock-require is useful if you want to mock require statements in Node. Yosuke Furukawa is a Node. Thankfully, it's easy to bring all the Babel goodness with you to the backend, and that's exactly what this lesson covers. mjs 作为ES6模块 至于时间表. meta, is making its way through the TC-39 committee, and is being implemented for Node. You can nest them one inside another. All the modern browsers support native JavaScript modules, and it’s a perfect time to start using them, which will change the way we are bundling the JavaScript using Webpack, Rollup, and other bundlers, and how the code is executed. js style module loading. graphql, it might be useful for name to be "Foo. JS imports modules. We could use Babel to transpile ES6 to ES5 and then run the ES5 code in Node. I search over google and try to find out reason but I am not satisfied. This is a simple example of how to implement server-side pagination in Angular 8 with a Node. Copy and paste the following code into it. x, certainly), now that io. import bootstrap from '. Who's Using ESDoc. In this article, I am going to take some very simple examples to demonstrate the usage of ES6 modules. This will help us to get rid of the common problem of node. ES6 modules will have to be transpiled to ES5 code so that we can run and test the code. 0-alpha1 will be released the week of January 30, 2017, which means new developments and disruptive changes should now be targeted against the 8. node defined in package. ECMAScript 2015 (ES6) and beyond. import and export. js engine preventing us from using Node's ES6 capabilities. js and TypeScript. Mock ES6 imports and dependencies for testing in Jest 18 October 2017 in Javascript Mocking ES6 imports is really useful for being able to test modules; however, my usual technique of using a Webpack loader doesn't work with Jest , since Jest is called from Node and doesn't run test code through Webpack. js The question: how can we use ES6 modules in Node. exports = and ES6 Module Interop in Node. js terminology, module. This is the fifth in a series of blog posts examining technologies such as ReactJS that are driving the development of modern web and mobile applications. 前言 这几年react、vue的快速发展,越来越多的前端开始讲es6的代码运用在项目中,因为我们可以通过babel进行转译为低版本的js以便于运行在所有浏览器中,import、export、let、箭头函数等等,对于node端,当然我们也希望使用这些高级语法,但是需要提前了解到node支持哪些新的语法。. 0 and it runs flawlessly. 25 Jan 2018. In the TypeScript/JavaScript area, select the Add ES6 imports on code completion checkbox. js does not (yet) support the new ES6 module system, and bails out at the import keyword which it simply doesn’t know. ES6 modules are behind a flag in Node. When this change lands this guide will updated. It's different from CommonJS and AMD we are currently using, which through the new keywords import and export. Rediscovering JavaScript: Master ES6, ES7, and ES8 [Venkat Subramaniam] on Amazon. Unlike the lexical import keyword, import() function is processed at the time or evaluation (more like require). But, it's true. Getting Started with ES6 (ES2015) and Babel Building Resilient Systems on AWS : Learn how to design and implement a resilient, highly available, fault-tolerant infrastructure on AWS. So to solve this problem in Angular we still use the ES6 module loading syntax but leave it to TypeScript to transpile to CommonJS. However you can use Babel · The compiler for writing next generation JavaScript. Using ES6 Modules in NodeJS While working on Node Guidebook, a project I started to share my thoughts on building NodeJS applications, I needed to answers a couple of questions. In ES6 you import modules like so import jquery from 'jquery';. Now you can use all the built in node modules (e. It’s different from CommonJS and AMD we are currently using, which through the new keywords import and export. A relevant ad will be displayed here soon. 0以上的版本来支持async语法,同时,我们也想在Koa2中使用import模块化写法. These ads help pay for my hosting. js MySQL MySQL Get Started MySQL Create Database MySQL Create Table MySQL Insert Into MySQL Select From MySQL Where MySQL Order By MySQL Delete MySQL Drop. return (function (a = "baz", b = "qux", c = "quux") { a = "corge"; // The arguments object is not mapped to the // parameters, even outside of strict mode. ES6 classes are constructor functions with some syntactic sugar. 1 How can I use ES6 today? 2. ES6 is a version of ECMAScript (ES), which is a scripting language specification standardized by ECMA international. Like we did for the previous few releases, let's go over what's new with Angular 8 as well as how to go about upgrading your Angular 7 apps over to Angular 8. This then allows you to import/export ES2015 modules in node. 这个应该追述到,先有鸡还是先有蛋的问题。谁叫社区自己发明了cmd,现在es6又搞个import/export。. I cannot get this transform to work with my create-react-app application. ES6 is right around the corner. ES6 interview questions and answers. js(v6 or later) Import Path In Documentation. Compilers/polyfills Desktop browsers Servers/runtimes Mobile; Feature name Current browser ES6 Trans-piler Traceur Babel 6 + core-js 2 Babel 7 + core-js 2. To expand further, using rollup for your development build may be the easiest choice, but if you have other libraries that work in this fashion I'd be curious to know which and see if I can reverse engineer it. It's this latter list of features that I consider the Essentials™, as it represents the set of feature we can use without a transpiler like Babel or Traceur. I found the syntax cool. An Update on ES6 Modules in Node. In the V8 issue tracker, the ticket for for destructuring assignment is #811 Implement destructuring. The import statement is used to load ES6 modules, and it only works inside an ES6 module. js using nvm, the Node. Understanding the differences between ES5 and ES6. js 에 대하여 알아보고, ES6 문법으로 gulp. NodeJS prévoit de soutenir les modules import/export es6 (es2015) j'ai cherché partout sur internet sans réponse claire. js is built against modern versions of V8. import 关键字的原生支持会让 Node 更像一个严肃的服务端解决方案。 新功能尝鲜. Beginner API development in Node, Express, ES6, & MongoDB. When this change lands this guide will updated. Importing modules using ES6 import, and exporting using ES6 export Are there any performance benefits to using one over the other?. CodeAction import paths are relative to the current file. Source # Source # export class Source {constructor (body: string, name?: string)}. But instead we shall directly run ES6 with the “babel-node” binary. js and JS/ES6. For instance, let and const, they are blocked scoped declarations and thus not prone to the common errors caused by misunderstanding. @babel/node : 바벨의 CLI 도구 중 하나이다. [1] These options are experimental. We could use Babel to transpile ES6 to ES5 and then run the ES5 code in Node. 28 and later): supports code splitting via import() Further. webpackのチュートリアルとかがES6なので、読めないとやばい、開発のときは書けないとやばいということで調べてみました。 exportについて モジュール化を行うexportには、モジュールごとに複数のexportを行うnamed exportsと. mjsextension. Se for um objeto o import pode importar só pedaços, mas se for uma função por exemplo então podes usar somente import foo from '. ECMAScript 2015 or ES6 is the term used to describe the latest stable iteration of the programing language commonly called JavaScript. 5 Is ES6 bloated? 2. Instead of wiring up everything from the outside, you tend to write it so that modules pull their dependecies in. exports and require) or the new ES6 modules? Note: As at NodeJS v11, ES6 modules are not supported in NodeJS. Lots of CSS and HTML coding for the fron end, with bootstrap 3, Setting up advanced ecommerce stores with Magento. Transpiling ES6 Modules to AMD & CommonJS Using Babel & Gulp can take advantage of the module system to export their objects as modules and the applications using the libraries import these. In my previous posts, we have discussed about "How to install Enide Studio 2014 IDE" and also "How to create a Node JS Application". js, Sass / Docker / Bleeding edge browser technologies enterJS 2015 - Polymer & ES6 in action (hosted by Lars Gersmann) What is Polymer ? a library for creating web components. 2) >npm install typescript -g (you may have to use sudo to install global packages) 3) >npm install tsd -g (this is the typescript definition tool/manager) 4) >npm install serve -g (a simple fast http server to serve the page when done) Create the app. In this post I portrayed the import and export highlight in ES6 and how we are utilizing it as a part of Node. Use the --v8-options flag to display the full list. I obviously can't ignore these files from the transform (they need to be transformed!). We now need to introduce Babel into the mix to make this code run. This is possible due to two characteristics of ES6 modules:. 25 Jan 2018. Browser issues. ES6 is the new standard of JavaScript and it provides so many new things like classes, spread operators, etc. js 환경에서 웹 어플리케이션을 만들다보면, 일일히 수작업으로 하기에 귀찮은 작업들이 존재합니다. *FREE* shipping on qualifying offers. If you are using ES6's import syntax in your application's entry point, you should instead import at the top of the entry point to ensure it is loaded first: import "@babel/register"; All subsequent files required by node with the extensions. The babel-node binary transpiles ES6 code in runtime. This REST API tutorial is designed to take you from beginner level through the fundamentals of API development in Node, ES6. Here are some notable exceptions: Modules and JSX always require transpilation. So, ESDoc Import Path Plugin converts import path to real import path. from google. ES6 modules are a nifty new way to write modules. At the time of writing this, there is no JavaScript engine yet that natively supports ES6 modules. If you want to know more about the implementation status of ES6 modules in Node. When I started on Mozilla's JavaScript team back in 2007, the joke was that the length of a typical JavaScript program was one line. We now need to introduce Babel into the mix to make this code run. ECMAScript modules are the official standard format to package JavaScript code for reuse. x-dev branch. 10,How To Enable ES6 Imports in Node. 最后,用–harmony参数进入node运行环境,就可以在命令行下体验ECMAScript 6了。 node --harmony. nodejs es7 (8) is it possible to import something into module providing variable name while using ES6 import? I. js script, by creating the async function and immediately calling it. Visualization of the minimal graph using webgraphviz. But there are some features that can't be emulated. The syntax is like the following. This table shows proposals which have not yet been included in the current ECMAScript standard, but are at one of the maturity stages of the TC39 process. exports defines the values that the module exports. Setting up the test environment is fairly easy, but to move things along I've. Quickly Documentation, Release 0. 7 Does ES6 have array comprehensions? 2. graphql, it might be useful for name to be "Foo. json, this default to node 8. js using nvm, the Node. Using Flow with Parcel is as simple as placing // @flow as the first line of your js files. May 25, 2015. As ECMAScript 6 drafts gets better each day, /me had an itch to try it before the browser wars will implement them on after the other, this itch led me to try it with node. For example, whenever you want to create a React component, you need to import the react module. CodeAction import paths are relative to the current file. « ES6 Strings (and Unicode, ) in Depth ES6 Promises in Depth ». It's the closest to import_html of the lot - but I've not yet found a function that could be placed in common. This article aims to summarize all of those, providing you with practical insight into most of ES6, so that you can. exports defines the values that the module exports. Use ES modules/ES6 import in Node without Babel/Webpack using `esm` Node has been implementing more and more ES6+ (ESNext) features natively. nodejs 发布已有多时,版本 log 重点说明从此 nodejs 开始原生支持 ES6,这让许多开发者都 happy 了一下。 笔者立刻将原来的一个小 server 框架改成 ES6 语法,但是: WTF!~~~说好的全部原生支持呢?import / export各种报错,加了--es_staging,也不行,人与人之前的信任呢?. We have written some refined questions that may be asked in Es6 Interviews. js对ES6的支持情况。 使用命令,全局安装es-checker: npm install -g es-checker. 2 Benefit: compact bundling, no custom bundle format # The module bundler Rollup proved that ES6 modules can be combined efficiently, because they all fit into a single scope (after renaming variables to eliminate name clashes). It's also, though, one of those sexy new JavaScript flavors that implement "ES6"actually, a family of modern JavaScript standards for more productive programming. CORS — Module scripts are requested with CORS and should make use of valid CORS headers e. ECMAScript 2015 or ES6 is the term used to describe the latest stable iteration of the programing language commonly called JavaScript. We can use the power of ES6 to create a server side app using node. The import and export keywords are brand new, and the import line isn't even valid in ES5. js if you use a fairly recent version, since it has nearly full native ES6 support. This library is not made as alternative to another libraries, it's has own pros and cons. We need to install it as a dev dependency:. Take a look at this post for more info on promises: Introduction to ES6 Promises. js app, with server side rendering using ES6. Install NodeJS; from here on, we will work in the command line. Now lambda covers more languages with Python 2. This document is intended to guide you through upgrading an existing Preact 8. Is export/import as ES5/ES6 components in the pipeline? I`d rather use the Hype animations as components, instead of incorporating the entire site into the Hype document in which I feel is the reccommended solution. Wasted about 3 hours. If you are using ES6's import syntax in your application's entry point, you should instead import at the top of the entry point to ensure it is loaded first: import "@babel/register"; All subsequent files required by node with the extensions. To have Babel-Node available as a command in your terminal, you need to install Babel CLI globally (Or install it locally and reference it from there in your build tool). Important: For commands that import administrators or nodes, you must consider the method of authentication. Broadly speaking, the way you structure your declaration file depends on how the library is consumed. What is TypeScript 3. 5 Is ES6 bloated? 2. ES6 import from "Unexpected token import Node 8. By default, Babel transpiles ES6 import statements to CommonJS. Therefore, any mock for an ES6 class must be a function or an actual ES6 class (which is, again, another function). Currently, @babel/preset-env is unaware that using import() with Webpack relies on Promise internally. Typings are now excluded by default (along with node_modules and jspm_packages) 0. Using Webpack to bundle up our modules and Babel to transpile our ES6 into ES5, we'll put this new module syntax to work within our project. The community came up with some workarounds: CommonJS (implemented into Node. mjs 作为ES6模块 至于时间表. Traceur is an ES6-to-ES5 module loader. The compiler is designed to compile all your code into a single binary. 6+, meaning that Node can run CoffeeScript’s output without any further processing required. Originally, Lambda was based on Node. js version manager. Nevertheless, ES6 has Promises for those of you who adore them. x 版本对 ES6 特性的原生支持并不好,但是好消息是,Node. Versions used in this book:. There are very short cycles, i. When I started on Mozilla’s JavaScript team back in 2007, the joke was that the length of a typical JavaScript program was one line. 前言 这几年react、vue的快速发展,越来越多的前端开始讲es6的代码运用在项目中,因为我们可以通过babel进行转译为低版本的js以便于运行在所有浏览器中,import、export、let、箭头函数等等,对于node端,当然我们也希望使用这些高级语法,但是需要提前了解到node支持哪些新的语法。. Finally, the import mechanism is very specific as to what you import. babelrc for list of used plugins). Node兼容ES6语法已经做到了大部分,但还是有一些顽固分子,比如import这个重要的ES6语法,在项目中我们要把require换成import就需要万能的转换器babel比如我们需要把constK. js is by far the most popular platform running Google's V8 engine, I'll focus on that. ES6 modules are behind a flag in Node. js を ECMAScript 2015 (ES6) で書かれた JavaScript で動かせるようにしていきます。. It seems to have improved since I last looked and ES6 will probably suffice performance-wise. 이번 강좌에서는 JavaScript 빌드 자동화 툴인 gulp. Debugging ES6 Code in Node. Your examples are using Node. Import es6 reflect in the WebPart. es6-translate ★5 ⏳3Y - Uses the ES6 loader hooks to load (node flavored) commonjs packages in ES6. ES6 modules, Node. With a component-based structure, it would be beneficial with hooks such as Hype. Why not just import {expect,should} from "chai", saddly, you can do it for expect but not should, According to the official docs now: It isn't possible to chain a function call from an ES2015 import statement - it has to go on its own line. js does not (yet) support the new ES6 module system, and bails out at the import keyword which it simply doesn't know. *FREE* shipping on qualifying offers. Till now there is no UI for importing data included in core. We now need to introduce Babel into the mix to make this code run. js has been using the CommonJS standard since years, the browser never had a module system, as every major decision such as a module system must be first standardized by ECMAScript and then implemented. Then we’ll start off the series by discussing about Destructuring in ES6, and when it’s most useful, as well as some of its gotchas and caveats. js 的分裂还没有结束,Node 8. JS 仍然是老大难问题. Finally, the import mechanism is very specific as to what you import. For real-time applications, Socket. Node兼容ES6语法已经做到了大部分,但还是有一些顽固分子,比如import这个重要的ES6语法,在项目中我们要把require换成import就需要万能的转换器babel比如我们需要把constK. Before I address that, it's important to note that ES6 module syntax is not the same thing as how Node. If you've used it, you might have faced the familiar relative path inclusion problem. meta feature. Deploying ES6 in Node. 5, but it's a bit limited: ES6 modules should be declared in files. Choose from a variety of hosting options for your Node. The way Babel works, that ES6 syntax is converted under the covers to CommonJS style code that can work within Node. exports defines the values that the module exports. The syntax is like the following.