Before that, Callbacks and Promises are used for asynchronous code. I believe it has been the single greatest addition to JS since 2017. 也就是说,只有当 async 函数内部的异步操作都执行完,才会执行 then 方法的回调。. js Posted on June 14, 2016 Our production Worktile Pro was built based on Node. On my personal site the list of projects that are displayed are actually from the Github API. then()もなく、かなりスッキリした書き方になりました。 このように、Async関数の中でPromiseを返す関数の前にawaitをつけるとその関数の処理が終わるまで待ってくれます。. If the Promise is rejected, the await expression throws the rejected value. The idea of re-writing a significant portion of my app's API connectivity (from thunk, to saga) is not entirely thrilling. async/awaitを使うには関数の前にasyncを付けます。 そのasync関数内でPromiseを返す関数を呼び出すところでawaitを付けると結果を取得して後続の処理を行います。. js is async/await. asynchronous things like data fetching and impure things like accessing the browser cache) easier to manage, more efficient to execute, easy to test, and better at handling failures. js® As an asynchronous event-driven JavaScript runtime, Node. In the beginning The common pattern for writing webservers at the time was to use processes or threads for concurrency. npm install --save-dev babel-loader @babel/core @babel/preset-env webpack Babel Presets. koa2-example-app - An app that is built using koa2 and async await #opensource. I am using babel 7 and webpack 4. babel转换后await后面的函数始终不执行,直接就返回了 [Function] ,总而言之,await后面跟thunk函数无效,转成Promise就可以。 这导致mysql-co 用不了,纠结啊,我到底要不要继续用koa2啊。. Javascript Promises are a big help, but async / await comes closer than anything I’ve seen so far. I’m trying to use async/await with a fresh project with aurelia cli (babel7, es, and the new aurelia bundler…) But I’m getting the nasty "ReferenceError: regeneratorRuntime is not define ". 12 when we firstly developed and at that moment we tried our best to prevent our code from the style below. Test ES7 async/await. 1 with some of my code. The compiler for next generation JavaScript. 5 (Node's underlying JS engine). Original post follows. Turn async generator functions and for-await statements to ES2015 generators. One interesting implementation detail around async await is that exceptions and errors are handled just like you were to handle them in synchronous code using a try/catch. Async Actions. Here is my code inside the "test" folder:. 4, we have the new asyncio module which provides nice APIs for general async programming. Im having to add it to include the async await features. Transpiling And Publishing ES9 NPM Modules With Babel 7. BabelJS is a JavaScript transpiler which transpiles new features into old standard. I think that promises solves all my problem everyday. Had plans to migrate most of the hyper-callback oriented codes to something that looks cleaner and maybe performs better. 0 起已經支援 Async/Await,建議直接更新你的 Node 版本! 接著如果要讓你的程式能夠執行 Async/Await,請額外建立一個檔案,並 require babel-register 及你程式的 entry:. 1 reply 2 Twitter may be over capacity or. Hàm async cho phép ta viết các thao tác bất đồng bộ với phong cách của các mã đồng bộ. I'm not sure if that's related to this exactly anyway. Starting from node 8, or node 6 with babel, we can use a feature named async await. It’s surprisingly easy to understand and use. Async/await is really new still, it’s only in the ES2017 spec, so you’ll need to use a transpiler like Babel to get it working in older browsers. It is extremely close to async/await syntax and, I think, is significantly better than Promise chaining. Async / Await At the core, Async / Await is build on top of promises. We've heard about this feature for a while, but let's drill down into it and see how it works. Install npm install seneca-await Setup. asynchronous things like data fetching and impure things like accessing the browser cache) easier to manage, more efficient to execute, easy to test, and better at handling failures. В этом курсе мы узнаем как использовать async и await в ES2017 для написания асинхронного кода, который является более читаемым и более простым в использовании, чем эквивалентный код, основанный на. 1 Writing asynchronous code via generators; 5. async/await. async, await는 promsie객체를 기본으로 한다. You just need to return the statement and remember not use. El async/await ya está disponible para ser usado por medio de transpiladores como babel y algunos navegadores ya lo soportan, pero en sus versiones más recientes, por lo tanto, su uso seria recomendado hacerlo por medio de babel. Here's an example Pen: See the Pen async/await example by Chris Coyier (@chriscoyier) on CodePen. And we can use it without babel transforming. Babel은 높은 버전의 자바스크립트를 낮은 버전의 자바스. babel转换后await后面的函数始终不执行,直接就返回了 [Function] ,总而言之,await后面跟thunk函数无效,转成Promise就可以。 这导致mysql-co 用不了,纠结啊,我到底要不要继续用koa2啊。. Questions: We're using async/await for our Meteor project. Using async / await with React I'm currently toying with thunks vs Sagas. The first thing to notice is that the function is prefixed with the async keyword. js application with async functions (async/await). Say you want to use an async function and await it, like this:. It’s different from CommonJS and AMD we are currently using, which through the new keywords import and export. Notably, iterators are closed similarly, via IteratorClose(), towards the end of this section. Now we’d like to share with you some of the lessons we’ve learned while working on these features, and some recipes to help prepare. Async/await is added as a experimental feature and can be used with the flag --harmony-async-await. Async arrow functions might not be a thing tho, but I’m not sure. Things at Babel haven't been running smoothly for a while, but now version 7 is ready: "After almost 2 years, 4k commits, over 50 pre-releases, and a lot of help we are excited to announce the release of Babel 7. There are other new things to try, too! Pipeline Operators. GitHub Gist: instantly share code, notes, and snippets. js application with async functions (async/await). If you have experience on ASP. 12 when we firstly developed and at that moment we tried our best to prevent our code from the style below. 通过 babel-polyfill 向全局注入运行时依赖。 那什么时候该用 babel-polyfill 什么时候用 babel-runtime?官网给出了解释: This will emulate a full ES2015+ environment and is intended to be used in an application rather than a library/tool. Попробуем вручную транспилировать async/await в генераторы, посмотрим как это делают Babel и TypeScript. decorators in the optional array:. Babel needs a little extra love if you want to transpile Async/Await or Generator Functions (link to docs). First, the doorState method needs to be both async and it needs to await doorController. x install [email protected] For Babel v7. The async / await is basically syntax sugar over promises. This is how Babel transpiles your awesome code with fancy features of even not-released ECMAScript into something that most browsers can run. babel-plugin-transform-async-generator-functions. Babel presets are a set of plugins, i. These ads help pay for my hosting. The main strength of generators is that they provide a single-threaded, synchronous-looking code style, while allowing you to hide the asynchronicity away as. After this detour, let’s go back to the task in hand: how are those fancy async/await transpiled? For that we are going to pick one of the async calls that I had before:. Async functions return a promise, so you still use promises to handle the response, as you can see on line 1 above. The purpose of async/await functions is to simplify the behavior of using. Stavo sperimentando sull’uso della versione 6. Async await using Babel Callbacks, promises, and generators turn out to be the weapons at our disposal to deal with asynchronous code in JavaScript and in Node. Promises are still excellent but are made more maintainable with async and await !. The program can run other code like gesture responders and rendering methods while the task is in progress. The compiler for next generation JavaScript. Alternatively you can use a Babel plugin to automatically wrap Async/Await code in runInAction functions for you. More than 3 years have passed since last update. * Running beta of. But finally async and await came to the rescue! It is on C# 4. It is common to await the return value of an async function, which is just a. 2 : The benefits of using async functions and the await operator. Yes, there are options for how to work with functions that return Promise without explicit syntax, but all of these options are too cumbersome or require auxiliary functions. I know Babel. We're a small group of volunteers that spend their free time maintaining this project, funded by the community. async/await 是es8才可能支持的语法, 目前大部分浏览器还是不能直接使用的, 不过没关系, 我们可以通过webpack来实现. Use async / await methods with seneca. See the Pen. Now async and await work with Babel, or without Babel in browsers that support it. Async/Await: How the heck does async/await work in Python 3. This is the second part of tutorial blog posts continuing the earlier Ethereum JavaScript tutorial left. async 函数中的 await 操作符到底做了什么 会在下个版本中改进,你也可以用自己的工程跑一下,然后用babel的stage-3编译一把. presented at Brookyln. Async/Await has been around the block already some time. Since async and await are keywords, we can't really use a polyfill to fix that. A relevant ad will be displayed here soon. Then Promises came to rescue JavaScripters. async/awaitで、動かなくなってしまいます。 chromeなどでは動くのですが、IE11で誤動作していまいます。 それ以外は全て動作するのですが、この2つの構文は対応せず変換されないようなのです。. Hàm async cho phép ta viết các thao tác bất đồng bộ với phong cách của các mã đồng bộ. async function* agf() { await 1; yield 2; }. Babel Setup. js? stackoverflow. 3 await is. async/await in IE with babel. 12 when we firstly developed and at that moment we tried our best to prevent our code from the style below. Koa relies heavily on async. With this, the features can be run on both old and new browsers, hassle-free. It also works if you use a current version of babel-standalone, like this:. Say goodbye to hackish code that works by accident and puzzling for hours before usual errors!. August 14, 2016 ES7 Async Await in JavaScript. NET Async / Await与Entity Framework 6. 5, you need to set up a transpiler like Babel to convert your. includes and Object. Asynchronous programming with async and await. Deixando tudo mais bonito e organizado: async e await. We could abstract out shared functionality over methods with a defined signature in a wrapper and not have to repeat the same tasks again and again. end() and the end. are reserved words. You need to use Node 7. js transpiles ES6 to ES5, but is there any way to make it transpile async-await to ES5?. You can await any promise. But sometimes, I'd like to import dynamically. the package. Do you want an ES7 async/await transpiling Babel plugin, that:. I'm using browserify + gulp + babel in my project, and having problem with ES7 features. js application with async functions (async/await). Things at Babel haven't been running smoothly for a while, but now version 7 is ready: "After almost 2 years, 4k commits, over 50 pre-releases, and a lot of help we are excited to announce the release of Babel 7. In the last 2 years I have changed my changed my day-work language from C# to JavaScript (as many others I believe). The "await" keyword tells the program to temporarily exit the async function and resume running it when a given task completes. A relevant ad will be displayed here soon. (await f)(x) While the idea of adding asyncto the pipeline was skidding, members of the committee spoke out against the operator pipelinewho does not support async / await. babel-preset-stage-3 は、 async/await をコンパイルするために必要なプリセットです。 どんな感じかは Async to generator transform · Babel を見ていただければ。 babel-polyfill は async/await のコンパイル後に依存している regeneratorRuntime を 使用するために追加しています。. We recommend using @babel/preset-env instead. Async/await was introduced in NodeJS 7. Testing async/await with Babel and Mocha 01 June 2015 on javascript, nodejs, es6, babel, async/await, es7. At the time of writing this, the node. and transforms it into code that uses promises. Sadly that means most of the great features of Node 8 like async/await string. 3 await is. Now that we know how to use async/await, we can use it to refactor our Github function from. There are 16970 observable variables and NO actionable varia. https://bit. This means support for async/await type of cool syntax sugar. up vote 3 down vote favorite I am trying to write a function using the await keyword (using Babel) that makes use of the pg-promise library inside of a for loop. [Help] Can't get babel 7 to work with async/await and arrow functions. We’ll briefly go through the possibilities async/await offers and how to leverage them to write async code. “Runtime Semantics: ForIn/OfBodyEvaluation”. babelrc (Recommended). JavaScript ES8 introduced async/await that makes the job of working with Promises easier. And Babel must be configured to use a bunch of presets: babel preset env for compiling Javascript ES6 code down to ES5 (please note that babel-preset-es2015 is now deprecated). Add ES7 Async/Await Support for your Webapp in 3 Easy Steps. js 8 runtime by AWS Lambda as well as Google Cloud Functions. async/await. Về bản chất, một hàm async sẽ trả ra một promise, tương ứng với Task trong C#. It matches the behavior of the babel plugin before we introduced the configuration and is the current specification in the pipeline operator proposal repository. Things at Babel haven't been running smoothly for a while, but now version 7 is ready: "After almost 2 years, 4k commits, over 50 pre-releases, and a lot of help we are excited to announce the release of Babel 7. Asynchronous functions are declared with the async keyword (line 5). Since async/await aren’t yet available in Node. November 21, 2018 | 5 Minute Read T here is no doubt that 2018 has been a great year to be a Javascript developer. As I type, we run Babel 6. (await f)(x) While the idea of adding asyncto the pipeline was skidding, members of the committee spoke out against the operator pipelinewho does not support async / await. For instance, assume you were using the GitHub API to write a simple function that does the following: Get the repository's README in Markdown Convert the Markdown to HTML Save the HTML in a f. It is common to await the return value of an async function, which is just a. Upon each connection, the callback is fired, but if there is no work to be done, Node. 关于async的介绍,在阮一峰的ES6入门教程中说到: async 函数是什么?一句话,它就是 Generator 函数的语法糖。 可是,为什么这么说呢? 首先,比如说有一个异步操作,使用 async/await 语法来以同步模拟异步操作。 使用 async/await 实现一个 sleep 的功能. I won't be going into that level of detail now, nor will I explore the subtleties of IO and CPU bound operations. I'm pretty sure that according to the specs this shouldn't even work if async/await is supported natively. async/await has been the most promising feature of ES2017. Async function is same as a normal standard function. isOpen() for the if-statement to work correctly. json would be like this:. 7 released: Async/await for ES6 @ahejlsberg Can Babel bring async/await down to Twitter may be over capacity or experiencing a. @meteormatt what version of Babel you have installed? This comment has been minimized. > In Babel 7, `transform-async-to-module-method` was merged into this plugin. Yes, there are options for how to work with functions that return Promise without explicit syntax, but all of these options are too cumbersome or require auxiliary functions. Support for async/await is nothing more than syntactic sugar…. In JavaScript I don't need async/await as it is handy in C#. I believe this indicates a possible bug with the "usage" feature of "useBuiltIns" with Babel 7 @babel/preset-env. https://bit. js 的原生功能不断强大,Babel 或许也不再是 Node 开发的“必需品”。本文将主要介绍关于如何在 Node 开发中摆脱 Babel 的方法。. You can use it today thanks to Babel , as snippets #4 and #5 show. async / await is another excellent addition in Javascript world, which may become a real game changer when it comes to writing asynchronous code. Okay, but not everybody can have fancy async/await – some projects have requirements, and async/await is not possible in the near future. So, where should we start? First we have to think about what a package manager is. You generally want a limited number of these in your application and usually just 1. all() allows them to run in parallel, reducing the time to 100. 2 : The benefits of using async functions and the await operator. 후아 이틀 삽질한 내용 1. async se usa para declarar una función asíncrona, y await para esperar a que se resuelva una promesa. js) is the async/await syntax being introduced in ES7. It’s different from CommonJS and AMD we are currently using, which through the new keywords import and export. up vote 3 down vote favorite I am trying to write a function using the await keyword (using Babel) that makes use of the pg-promise library inside of a for loop. I'm using Rollup and Babel 7, but keep getting errors in Chrome when I actually run the code. この記事によると、あなたはbabel-polyfill. Về bản chất, một hàm async sẽ trả ra một promise, tương ứng với Task trong C#. This is the third post of the tutorial series called Node Hero - in these chapters you can learn how to get started with Node. สำหรับใครที่จะใช้ async/await บน browser จะแนะนำให้ผ่านการ compile ด้วย babel ก่อน จะทำให้เราใช้ feature บน ES2016, ES2017 ได้ใน browser ทั่วไปที่ไม่รองรับ โดยใน. However when we upgraded node. @babel/plugin-syntax-async-generators agent ajax api async await axios cancel client frisbee got http https ky promise promises request. Async-Await. NET MVC then probably you are familiar with async/await keywords in C#. Behind the scenes, Laravel Mix leverages Babel's env preset, when transforming your code. 相比较 babel-plugin-transform-runtime 会在每个模块注入运行时代码,该插件会将运行时代码打包,类似封装到一个对象下,这样避免注入重复的代码。 让 async/await 跑起来. Async/await is really new still, it’s only in the ES2017 spec, so you’ll need to use a transpiler like Babel to get it working in older browsers. The basic premise looks like this:. In order to use this specification in real code, we must use a transpiler that reads our code that it uses. Syntax (async function { await loadStory(); console. The following microservice responds with a JSON encoded array of users a database. Also, if you miss the await keyword, the test will fail because it is expecting some value, not a Promise. Search for: Async await swift. Hi Dan, Yes we do the equivalent of wrapping everything in an async function. 이 식은 async 함수의 실행을 일시 중지하고 전달 된 Promise의 해결을 기다린 다음 async 함수의 실행을 다시 시작하고 완료후 값을 반환한다. No description. The minimal proposal covers only the basics around the pipeline operator, so features like partial function application and async/await don't work. Of course, I want to be able to use async/await in my client, I’ve done this before using straight Bable, but for JSPM I had to do some extra digging. js, and you have to set some experimental flags to even get Babel to consider it. async/await has been the most promising feature of ES2017. 通过 babel-polyfill 向全局注入运行时依赖。那什么时候该用 babel-polyfill 什么时候用 babel-runtime?官网给出了解释: This will emulate a full ES2015+ environment and is intended to be used in an application rather than a library/tool. Before that, Callbacks and Promises are used for asynchronous code. Async/Await 101. ly/2L0RtMf. Especially as async and await work without running through Babel in most browsers these days. await effectively makes each call appear as though it’s synchronous while not holding up JavaScript’s single processing thread. React Native Take your JavaScript to mobile devices with. Async/Await is a JavaScript ES7/ES2016 language feature that allows you to write,import fetch from ‘node-fetch’,our production Worktile Pro was built based on Node. To be precise, they managed to release the minimal variant of this proposal in Babel 7. And Babel must be configured to use a bunch of presets: babel preset env for compiling Javascript ES6 code down to ES5 (please note that babel-preset-es2015 is now deprecated). When placed in front of a promise call, it pauses the execution of an async function and waits for the promise to resolve. log-ing inside thousand of callback functions. There are currently five variants of the pipeline operator being evaluated before the operator is added Babel proper, with Babel 7. I am not able to setup babel correctly for the usage of async / await. Then use the babel-loader in your module section. x install [email protected] NB: Babel 7 is in beta. Support async/await in jest tests #105. Async await using Babel Callbacks, promises, and generators turn out to be the weapons at our disposal to deal with asynchronous code in JavaScript and in Node. BabelJS is a JavaScript transpiler which transpiles new features into old standard. The following microservice responds with a JSON encoded array of users a database. babel-plugin-transform-async-to-module-method appears to be the most common way to compile async/await to Bluebird, however it slows my application down by about 10-20% which is not acceptible. js version is 7. decorators in the optional array:. async y await. Your life becomes good again. Babel presets are a set of plugins, i. So, where should we start? First we have to think about what a package manager is. 1 with some of my code. ES7 is still very bleeding-edge. В этом курсе мы узнаем как использовать async и await в ES2017 для написания асинхронного кода, который является более читаемым и более простым в использовании, чем эквивалентный код, основанный на. async/awaitを使おう. the babel async-await transformation. G ood, async/await is a great syntactic improvement for both nodejs and browser programer. js with Babel. Especially as async and await work without running through Babel in most browsers these days. It's been almost 3 years since the release of Babel 6! There's a lot of moving parts so please bear with us in the first weeks of. async, await는 promsie객체를 기본으로 한다. One interesting implementation detail around async await is that exceptions and errors are handled just like you were to handle them in synchronous code using a try/catch. It’s surprisingly easy to understand and use. Debugging was a crazy console. Originally I required the @babel/polyfill to be used to try to compensate for the missing feature sets. It is currently on Stage 3 Draft but is well adopted in tools such as Babel which transpiles the code into Generators (which is actually transpiled again by Babel to backward support legacy browsers). 1 with some of my code. This article focuses on effective ways to capture and handle errors using error-handling middleware in Express [1]. Seneca Async. See the Pen. await는 promise가 settled(모두 수행)될때 까지 기다린다. As far as support goes, async/await is supported in Chrome, FireFox, Edge, Safari and Node 7. TypeScript has had support for async / await on the server-side for Node with ES2015 since version 1. babel-loader is the Webpack loader responsible for taking in the ES6 code and making it understandable by the browser of choice. You may have seen similar patterns in C#. Async Await. Async/Await 101. Compilers/polyfills Desktop browsers Servers/runtimes Mobile; Feature name Current browser Traceur Babel 6 + core-js 2 Babel 7 + core-js 2 Babel 7 + core-js 3. I know Babel. In July of 2015 the async / await proposal advanced to Stage 2. This is a mini-post explaining a small (not so) hidden danger of using async/await in your ES7/babel code. , d:\projects\es6-demo. async/await can make your code cleaner and readable. x install [email protected] For Babel v7. Okay, but not everybody can have fancy async/await – some projects have requirements, and async/await is not possible in the near future. Async keyword is used to call the function/method as asynchronously. We have been using ES7 Async/Await with babel-plugin-transform-async-to-module-method and bluebird co-routines for about a month now. 0 to support the async/await keywords throughout the framework. Async awaitでの繰り返し処理についての小話 1. @lgalfaso is spot on with why it doesn't work. Async/Await Webinar Series In this 3-part webinar series, learn how to avoid common pitfalls in asynchronous codebases. The Task asynchronous programming model (TAP) provides an abstraction over asynchronous code. GitHub Gist: instantly share code, notes, and snippets. js 8 runtime by AWS Lambda as well as Google Cloud Functions. The minimal proposal covers only the basics around the pipeline operator, so features like partial function application and async/await don't work. * Running beta of. Ultimately what you need to keep in mind is that the async/await syntax enhances promises, it does not replace promises! 8. Where? Used mostly for data fetching and other initialization stuff componentDidMount is a nice place for using async/await in React. The keyword async then replaces the generator functions, await replaces yield. While waiting for the async/await feature to be implemented, I think the above syntax is compelling. This syntax is everywhere in our resolvers. Hence, async await can be compiled to Promises and made to work on ES5 and below Using Generators Another, more natural way to implement async await is to use ES6 Generators. The minimal proposal covers only the basics around the pipeline operator, so features like partial function application and async/await don’t work. We're a small group of volunteers that spend their free time maintaining this project, funded by the community. Fork anonymous (public) fiddle? - Be sure not to include personal data - Do not include copyrighted material. See the Pen. These ads help pay for my hosting. JavaScript Asynchronous How to escape async/await hell Flow Control in Modern JS: Callbacks to Promises to Async/Await JavaScript Symbols, Iterators, Generators, Async/Await, and Async Iterators — All Explained Simply. Up till now this is pretty much what I wrote in How to conquer Webpack 4 and build a sweet React app. Add ES7 Async/Await Support for your Webapp in 3 Easy Steps. babelrc (Recommended). The client pool allows you to have a reusable pool of clients you can check out, use, and return. I recently stumbled upon an intriguing chapter from a cool book called 500 Lines or Less, co-authored by A. Unfortunately, proposal-async-generator-functions, which transforms for-await, currently has some assumptions (generators) that cause it to not work in the case where preset-env doesn't run transform-async-to-generator because your target has native support. Transpile Async Await proposal with Babel. It lets you run the expectations just as if the values were synchronous. In April of 2014 it was discussed that the keyword await should be reserved in the module goal for the purpose of top-level await. However if you are writing JavaScript code targeting Node versions < 8. I was curious about testing ES6/7 code transpiled with Babel. Async/await is fully supported in the latest versions of Chrome, Firefox, Safari, and Edge, so you can try out the examples in your browser console. ly/2L0RtMf. All the operations of memcached via common callback/Promise are OK. Now that you can automatically transpile your js code, let's take a look at how to add async/await to make your callbacks go away:. I believe this indicates a possible bug with the "usage" feature of "useBuiltIns" with Babel 7 @babel/preset-env. Remember, the await keyword is only valid inside async functions. async/await. 相比较 babel-plugin-transform-runtime 会在每个模块注入运行时代码,该插件会将运行时代码打包,类似封装到一个对象下,这样避免注入重复的代码。 让 async/await 跑起来. and from time to time I like to use a plain old callback. They are supported in Node 7. async,Await 其实就是promise的封装,使用编译技术自动将async,Await转化为promise,为了更好的理解async,Await是什么?我们使用转换工具来分析 async/await转换工具安装 $ sudo npm install babel-plugin-async-to-promises -g $ babel --plugins async-to-promises async_test. You'll lose typechecking during webpack build but you can run it as separate step. async / await是ES7的重要特性之一,也是目前社区里公认的优秀异步解决方案。目前,async / await这个特性已经是stage 3的建议,可以看看TC39的进度,本篇文章将分享async / await是如何工作的,阅读本文前,希望你具备Promise、generator、yield等ES6的相关知识。. I believe it has been the single greatest addition to JS since 2017. สำหรับใครที่จะใช้ async/await บน browser จะแนะนำให้ผ่านการ compile ด้วย babel ก่อน จะทำให้เราใช้ feature บน ES2016, ES2017 ได้ใน browser ทั่วไปที่ไม่รองรับ โดยใน. This will likely be the case for some time but it needn't hold us back. babel-plugin-transform-decorators-. Async/await is relatively new and is supported in the newest versions of Node, Chrome, Firefox, Edge, and Safari. and transforms it into code that uses promises. This means support for async/await type of cool syntax sugar. 6) Native async/await is supported from Node.