Gulp babel polyfill. js, Babel + auto polyfill.

Gulp babel polyfill. Oct 24, 2020 · Babel默认只转换新的 JavaScript 句法（syntax），而不转换新的API，比如Iterator、Generator、Set、Maps、Proxy、Reflect、Symbol、Promise等全局对象，以及一些定义在全局对象上的方法（比如 Object. The difference is that for Gulp, babel-polyfill only needs to run while Gulp is running — not while your app is. Babel includes a polyfill that includes a custom regenerator runtime and core-js. js文件来作为全局环境垫片， polyfill. Jul 20, 2015 · I can'not correctly load babel/polyfill with gulp. Additionally, this repository contains a package that helps with creating providers for other polyfills. See full list on pxpx. test是用括号包起来的,然后调用一下,但是两个结果的obj. data?. I've installed the babel-polyfill, but can't get it working and the docs and Google haven't hel Jul 20, 2022 · 我在vue3+typescript的项目中用到了js的可选择链操作符 (?. Babel transpiles some modern features, but not all that would be needed to target the Sep 13, 2016 · For this book, we will look at how to configure Gulp to automate working with Babel, and later on in the book, we will use this to work with modules as well. js的方式。 I recently upgraded to Babel 7 using Gulp 4. Babel transpiles some modern features, but not all that would be needed to target the Sep 18, 2021 · @FredKSchott I am using gulp-babel, but some of the es6 code I am using requires polyfill, and cannot be transpiled by gulp babel. js with gulp . I've got a single package in my node_modules that is written in es6 and needs converting. This means you can use new built-ins like Promise or WeakMap, static methods like Array. I've been trying to make this Apr 5, 2024 · 回来原来的问题，如果使用 单一 gulp 不能解决吗？ （不添加 @babel/plugin-transform-runtime） 可以。 第一种方法，不使用新的 API。 第二种方法 安装 npm i -s @babel/profill，然后到 node_modules 目录下找到 polyfill. Nov 5, 2015 · 主な変更点 babel6になりパッケージの分離が行われました。 Setting up Babel 6 ES6,React変換等が別パッケージに移動されました。 Plugin・Presetsとして提供 "babel"パッケージは何も仕事をしなくなりました CLI: babel-cli Polyfill: babel-polyfill その他API: babel-core 各プリセット Dec 16, 2015 · When I run my Ionic project in my workstation with “ionic serve” command I receive an error telling me that “babel/polyfill” was not found. But when I do it using gulp-header this line gives no Aug 29, 2016 · But I can't import some package installed with npm (isotope, textfit, babel-polyfill). Cannot find module '@babel/runtime/helpers/interopRequireDefault' Mar 7, 2019 · 一 概述 每个Babel编译后的脚本文件，都以导入的方式使用Babel的帮助函数，而不是每个文件都复制一份帮助函数的代码。 1 优点 （1）提高代码重用性，缩小编译后的代码体积。 （2）防止污染全局作用域。（启用corejs配置） babel-polyfill会将Promise等添加成全局变量，污染全局空间。 ① 默认使用@babel The problem is that we added export * as ns from "foo" support by default to @babel/parser (in #10521) but not to @babel/preset-env. I'm trying to attach a line (require ('@babel/polyfill')) to the top of every file. The project is configured with gulp. I need to add babel-polyfill to my project, in order to fix the issue with 'find' and 'includes' functions in ie11. resolve ("babel/polyfill")) I get an e Nov 13, 2015 · But other tutorials say to install babel-polyfill with --save, not --save-dev? Yep, and they’re correct. - nstungcom/gulp-starter-kit Jul 10, 2019 · We are going to transpile and polyfill JavaScript in this tutorial, we are going to show you two different ways to do this. mi Nov 2, 2020 · 在 browserify 啟用 transform，並用 babel ify 來設定 babel 參數來進行編譯 參數的方式和於根目錄放置 . Nov 3, 2016 · @loganfsmyth, can you please suggest what module bundler is the 'usual' choice for babel? I'm feeling like in a rabbit hole now, the only reason I use babel is because I can't compile typescript directly to es5 due to the same Map/Set issue, for compatibility I have to use babel, it was quite easy by adding a babel pipe, but now it looks like I need to change the whole building process? Nov 18, 2019 · 文章浏览阅读748次。本文详细介绍了如何使用Gulp和Babel将现代ES6语法转换为向后兼容的ES5语法，包括必要的包安装、配置文件创建、任务定义以及polyfill的使用，适用于前端开发者进行代码兼容性处理。 Jul 10, 2023 · Gulp Starter Kit for front-end developers which supports: SCSS, Eleventy, Nunjucks, rollup. However if try to load browser-polyfill. assign）都不会转码。 也就是说如果项目的js文件中有 Promise 等全局对象,那么就算用 babel-preset-env Apr 24, 2016 · I am using Babel and Browserify with Gulp. @FredKSchott I am using gulp-babel, but some of the es6 code I am using requires polyfill, and cannot be transpiled by gulp babel. Copy The docs said To include the polyfill you need to require it at the top of the entry point to your application. It is most convenient and effective to use the latest ECMA-standard (es) when we write Dec 11, 2020 · 本文翻译自Mathias的博客文章-A horrifying globalThis polyfill in universal JavaScript，文章翻译建立在我理解的基础之上，如有疏漏，欢迎各位评论区指正。 globalThis提案引入了一种在任何 JavaScript … Mar 13, 2019 · If you are using babel version 6, you need to explicitly install/use gulp-babel version 7. - babel/babel-polyfills Nov 13, 2015 · But other tutorials say to install babel-polyfill with --save, not --save-dev? Yep, and they’re correct. 4 之后不再推荐使用 @babel/polyfill，而 @babel/preset-env 和 plugin-transform-runtime 二者都可以设置 corejs 来处理 polyfill。 Nov 20, 2018 · 最近想在公司的一个用gulp构建的老项目上引入ES6环境，但是查遍了了网上的方法还是没有找到合适的插件，最后只能用网上的一个方法，再优化一下解决。压缩下polyfill. I now need to polyfill it to get IE8 support. js and . If you’re using babel-polyfill in your application too, keep it is a a dependency, not a devDependency. js ，然后通过 script 标签引入到页面就解决了。 Nov 28, 2019 · 当然这是理想情况。 前几年我主要做的都是H5方面的开发，所以对于浏览器的兼容问题关注也不是很多。 近两年的开发也都是基于VUE框架，对于vue,如果需要使用ES6并且需要_gulp+babel解决传统项目ie环境es6语法兼容问题 Sep 13, 2018 · 》》》》【问题】在使用gulp打包的项目中，引入了一些采用es6语法编写的js文件。导致在一些浏览器中识别不了出错，例如IE和搜狗。 》》》》【解决】使用babel做了处理。 使用方案一：gulp babel + babel preset env + babel core 1、 cd进入项目下，依次 Jan 11, 2019 · 其中 babel-core 是核心模块， babel 的核心api都在这个模块里。 比如 transform： babel. html中加载node_modules的babel-polyfill，这样就能在gulp打包编 Mar 29, 2017 · BabelでES6をコンパイルする方法の入門編です。JavaScriptの新基準であるES2015（ECMAScript2015）をBabelでES5に変換します。またGulp、Atomなどで自動的にトランスパイルする使い方やブラウザの対応状況などをまとめました。 2 2016-03-29 17:19:14 Edit I noticed an issue with babel-polyfill and IE, when i reverted to this npm package "babel-polyfill": "6. After deploying my code, I realized there are IE 11 compatibility issues, and also issues with early versions of Microsoft Edge browser (16, 17, 18) whe Apr 28, 2017 · 文章浏览阅读355次。 今天想在新项目中使用es6的generators，发现虽然gulp已经有了babel编译，但仍会报错，网上查找后发现解决办法是加载polyfill，但是找到的办法都不试用我的项目。 May 13, 2023 · What's the best way to use the polyfill? I couldn't find the better way but to include it into glob like this: gulp. json. js 文件中找到它。 它需要在你编译过的 Babel 代码 之前 被包括进去。 你可以将它追加到你编译过的代码中，或者在这些代码之前通过 <script> 引入它。 注意： 不要通过类似 browserify 等手段来 require 它，用 babel-polyfill。 Sep 5, 2021 · 'transform-runtime' transform-runtime插件是运行 在node服务器上 的，所以即使你装了，浏览器照样不认识。 二、解决方案（babel-polyfill编译） 需要的在gulp-babel给你编译的时候，把regeneratorRuntime再转换一次，这就用到了babel的babel-polyfill。 Aug 16, 2018 · babel-polyfill Babel默认只转换新的JavaScript句法（syntax），而不转换新的API，比如 Iterator 、 Generator 、 Set 、 Maps 、 Proxy 、 Reflect 、 Symbol 、 Promise 等全局对象，以及一些定义在全局对象上的方法（比如 Object. Apr 24, 2016 · I tried to add babel-polyfill like other people said but everything is not worked on me. For example, if I import babel-polyfill in my index. This will heavily improve with the startup and compilation of your files. If you need babel-polyfill then you should install the version 7 package instead, which has been renamed to @babel/polyfill. js 有Babel官方的 polyfill. I ran nmp install to get babel-polyfill. That's is why I need to inject polyfill into the code. The way it is set up it adds it's little helper functions to each file (e. Thanks for looking into this. But I added it and got a new error. They way I worked around it, was to check those functions in the bundle for duplication and remove them. jsx and . js file : import "babel-polyfill"; No errors with gulp, and the code seems to be added in dev. 0が正式版になれば不要？ （`"useBuiltIns": "usage"で解決） その前にpug, stylusの学習が先。 また、Promise以外のES6について Jan 27, 2025 · 前言 随着 ES6 语法的逐渐普及，越来越多的前端项目开始使用 ES6 进行开发。而 Gulp 作为前端自动化构建工具的代表，也需要适应 ES6 的使用。本文将讨论在 Gulp 中使用 ES6 语法时可能遇到的问题，并提供解决方法和示例代码。 使用 gulp-babel es6转es5语法 使用 gulp-babel es6转es5语法 1. This is my babel config: Oct 28, 2020 · 概要 ・ESについてと、各ブラウザの対応状況についてはこちら↓の記事を参照 ES（ECMAScript）とは？jsがブラウザによって動いたり動かなかったりするのはなぜ？ ・polyfill、babelは、最新のES仕様で書いたjsを、どのブラウザでも動作するようにするため Jul 14, 2022 · With Webpack and Gulp, "Cannot use import statement outside a module" #14760 Answered by JLHwung justinfarrelldev asked this question in Q&A edited Mar 29, 2022 · 由于 Babel 7. 0" everything started working normally /Edit Are you using browserify?Also you'll need the babel-polyfill and the plugin ['transform-es2015-classes', { loose: true }]] heres my gulp task for IE compatibility with Documentation: How to use polyfills #219 Open sf-steve opened this issue on Jul 30, 2021 · 0 comments sf-steve commented on Jul 30, 2021 • Feb 22, 2017 · I'm using gulp-rollup plugin with properly configured babel. test调用的结果却是不一眼的,第一个this是obj,第二个是window感觉. es, . We'll also amend our tsconfig. g. require ("babel/polyfill"); gulp-babel is doing require ("babel-core") So I think polyfill is not included but again the doc sa This cheat sheet provides a comprehensive overview of Babel, covering installation, configuration, CLI commands, advanced features, and best practices. I have a gulp task with babel configurat Apr 25, 2019 · I thought useBuiltIns and core-js was supposed to handle that. babelrc { "presets": [ [ 如果不使用 @babel/preset-env，则如上所述将 @babel/polyfill 添加到 webpack 条目数组。它仍然可以通过 import 或 require 添加到应用的入口点顶部，但不建议这样做。 ¥If @babel/preset-env is not used then add @babel/polyfill to webpack entry array as discussed above. (this polyfill is automatically loaded when using babel-node). add (require. Nov 19, 2023 · 手动引入polyfill的方式除非我们知道自己只需要引入哪种polyfill，不然一般都推荐通过babel or swc自动引入polyfill代码，如下图所示 Feb 28, 2020 · Estou tentando fazer um polyfill de um script para que funcione com IE8+, porém o mesmo resolve alguns problemas mas gera outros: Minha configuração do . Because of this it's not suitable for libraries, if however you're writing an application gulp+babel解决传统项目IE环境ES6语法兼容问题，代码先锋网，一个为软件开发程序员提供代码片段和技术文章聚合的网站。 Mar 21, 2017 · 如何在gulp中使用babel-polyfill?结果为空值,想问一下这两个有什么不一样吗,感觉都是先获取到obj. 5. ts中加载了它 但是问题却没有解决，依然有上面的问题，我哪里配置的不对吗？？ Nov 1, 2023 · Using @rollup/plugin-babel in my gulp file. This results in a lot of code duplication. min. In my case Array. Install babel-polyfill I'm assuming that you've already installed all webpack dependencies, along with babel config inside webpack config file Through npm add this Feb 18, 2020 · Hi Gulp-bro team. In gulpfile. assign引用babel-polyfill编译es6新增api一、IE浏览器无法识别ES6新增API这里用的是ie浏览器，chrome是 Dec 19, 2024 · 在前端开发中，使用 Babel 和 Gulp 结合起来可以帮助我们更加高效地编写和维护代码。Babel 是一个 JavaScript 编译器，可以将 ES6+ 代码转换成浏览器可以理解的 ES5 代码。Gulp 是一个自动化构建工具，可以帮助我们自动化地完成一些重复性的工作，比如编译代码、压缩文件等。 Jan 8, 2020 · 此篇將介紹如何透過 gulp-babel 這個套件編譯我們的 JavaScript，後面也會補充介紹 @babel/runtime 與 @babel/polyfill 組件的使用。 筆記重點 gulp-babel 安裝 gulp-babel 基本使用 gulp-babel 可傳遞選項 補充：@babel/runtime 與 @babel/polyfill 組件使用的必要 補充：@babel/runtime 使用方式 Nov 30, 2020 · I have an old project written in Angular. transform 用于字符串转码得到AST… gulp-babel 是专供gulp用的。 babel-polyfill 注意，这家伙是有大作用的。 Sep 3, 2023 · A set of Babel plugins that enable injecting different polyfills with different strategies in your compiled code. js, but it's not working, and I can't require it either : it gives an empty Object. js. 7k 阅读 已 Oct 15, 2021 · 除了上述的两个插件外，接下来需要安装一些其他需要的babel组件 命令： yarn add @babel/preset-env @babel/polyfill @babel/runtime -D 这里面的 @babel/polyfill 是一个 core-js 和 generation runtime 的合集,安装之后在配置文件里配合 @babel/preset-env 使用即可。 Sep 23, 2018 · Javascript development environment with Babel, Webpack, Gulp, and ESLint Full boilerplate for web development using the latest JavaScript standards, prettier and eslint for consistency and… Hello all, when I make changes to a JS file that compiles down from ES6 using gulp-babel, I run into a Segmentation Fault: 11 error. The polyfill specified in polyfill is also automatically required. token; 然后360浏览器不支持这个符号 所以我想到了babel，然后我安装了它 npm install babel-polyfill -S 并在main. We are going to transpile JavaScript by compiling as TypeScript and use external polyfills. babelrc. Use it as a quick reference for all your Babel needs. Nov 13, 2015 · I've got Babel 6 working nicely with Gulp and Webpack. 1k次。需求分析：es6语法以及提供的强大api给前端带来了很大便利，可是部分浏览器无法识别es6语法gulp-babel只能将es6语法编译成es5，比如：箭头函数、let变量等，但是API不能编译，比如Object. Step-by-step tutorial to streamline your build process. Contribute to babel/babelify development by creating an account on GitHub. Transpiled code from babel needs babel-polyfill to be loaded so I put import "babel-polyfill"; at the top of my main file (babel-polyfi Jan 20, 2018 · Now that we've got Gulp, we can take the ES6 output from TypeScript and polyfill that to whatever version we want to support using babel-preset-env. Anyway, back to the point, is there a way to add babel-polyfill into Gulp + Babelify + Browserify? I spent hours but I'm still working on it. Sep 19, 2024 · Gulp打包JS如何polyfill这个问题可以通过几个核心步骤来解决：安装必要的插件、创建Gulp任务、配置Babel、使用core-js和regenerator-runtime。 下面将详细描述其中的配置Babel这一点。 Gulp是一种流行的任务运行工具，常用于自动化工作流，如代码打包、压缩和转译。 Aug 24, 2018 · 可以在 babel-polyfill npm 发布版中的 dist/polyfill. js, Babel + auto polyfill. The require hook automatically hooks itself into all node requires. uk Apr 24, 2015 · In Pull Request #38 I suggested adding a section to the README which clarifies how to include the babel runtime. I need to polyfill promises for IE11 but it's not working. Aug 3, 2016 · I’m new to gulp, trying to change the build so I can take advantage of all new features for ES 6. As a workaround, you can enable @babel/plugin-proposal-export-namespace-from in your config. Es6-array. assign）都不会转码。 Browserify transform for Babel. next time, I should use webpack. If you are using babel version 7, you need to gulp-babel version 8 which you can get npm run i --save-dev gulp-babel for now. Sep 1, 2020 · What @babel /polyfill is? It's just the import of stable core-js features and regenerator-runtime for generators and async functions, so if you load @babel /polyfill - you load the global version of core-js without ES proposals. Apr 6, 2020 · I'm trying to transpile some ES2015 code with Babel using gulp-babel but Babel seems to ignore my browserslist. js，也有第三方的。 我们引入一个Babel官方已经构建好的polyfill脚本。 简单起见，我们通过在html里引入polyfill. This may be a little bit confusing as running npm install inside the package folder installs both dependencies and devDependencies. js"], "presets": [ [ "@babel/preset-env", { " Aug 5, 2016 · Although the documentation doesn't mention it, npm install folder only installs dependencies and not devDependencies. Apr 11, 2019 · 情報も多かった。 だが、stylusは後発だし構文もsassで書けるようだったので gulp-sass はやめた。 babel-polyfill Promiseの勉強が必要 babel-preset-env 2. I guess I don't need this since I only need this for IE anyways, I'll just do a conditional import to load in babel polyfill. assign）都不会转码。 也就是说如果项目的js文件中有Promise等全局对象,那么就算用 babel-preset-env Sep 15, 2019 · 默认情况下，@babel/preset-env的效果和@babel/preset-latest一样，虽然上面的说明有提到polyfills，但是也需要在配置中设置useBuiltIns才会生效。 Dec 5, 2018 · 文章浏览阅读3. Jul 30, 2021 · 我们可以直接在html文件引入polyfill. @babel/preset-env:装了所有es6转化es5的规则 4. es6, . Oct 24, 2024 · 在前端开发领域中，Babel 是一个十分常用的工具，可以让我们使用最新的 JavaScript 语言特性，而不用担心兼容性问题。但是，当我们在编译后的代码大小过大时，我们往往会感到苦恼。 这篇文章将介绍一些解决 Babel 编译后的代码体积过大的方案，包括使用 Polyfill、Tree Shaking 和代码压缩等。 A set of Babel plugins that enable injecting different polyfills with different strategies in your compiled code. We are also going to use babel and gulp for transpilation and use external polyfills. The addition to the JS file can In this post you'll learn the difference between compiling your code and polyfilling it. for all classes _createClass is added). This is node_modules I installed: vinyl-source-stream Nov 28, 2019 · 近两年的开发也都是基于VUE框架，对于vue,如果需要使用ES6并且需要兼容一些低版本的浏览器，比如万恶的ie，我们可以安装 babel-polyfill 是代码正常运行。 Jan 12, 2016 · In Babel docs they just say that to include import "babel-polyfill"; so that I can use ES6 generators but after I included that line in my gulpfile. I think it's getting harder and harder when I using gulp + babelify + browserify. js I still gen an exception : Uncaught ReferenceE Feb 12, 2020 · 为了支持业务中少量的es6+的高级特性，最近在研究了一下babel的垫片，现将此整理为文字，如下。 (本文旨在说明babel及babel周边相关的包之间的关系和使用方式，以及应用场景。) 理清了他们之间的关系，那么再正式来讲讲有关polyfill的二三事。 babel-polyf… Mar 28, 2016 · Edit I noticed an issue with babel-polyfill and IE, when i reverted to this npm package "babel-polyfill": "6. Here's the part you were probably looking for: For this, we need to set up two files: gulpfile. from or Object Gulp plugin for Babel. @babel/core:babel核心库 2. So try to install gulp and all the rest as npm install --save gulp (not --save-dev) Mar 15, 2021 · Hi. task('default', function () { var polyf Note how in addition to gulp-babel we install the babel-preset-es2015 that configures babel to enable the use of all features within the ES6/ES2015 specification. co. I tried to add this line manually and everything worked fine. test,而且obj. This will pollute the global scope and introduce conflicts. Gulp/babel/polyfill Node. I’m trying to make live changes and due to this error I can’t do. This will emulate a full ES2015+ environment (no < Stage 4 proposals) and is intended to be used in an application rather than a library/tool. Gulp Starter Kit for front-end developers which supports: SCSS, Eleventy, Nunjucks, rollup. 2 in our project. I'd like to ask if you're ever going to update gulp-bro so it no longer uses the deprecated dependency of @babel/polyfill? Thanks for your great work with this plugin. It's both simpler and more complex than you'd expect. transform 用于字符串转码得到AST… gulp-babel 是专供gulp用的。 babel-polyfill 注意，这家伙是有大作用的。 Gulp 用 Babel 降级的方式 uglify ES6 JavaScriptGulp 用 Babel 降级的方式 uglify ES6 JavaScript 在写 Purer 主题时用的 Gulp，在 minify JavaScript 的时候遇到了问题。花了挺长时间折腾才找到了解决方法。马后炮的说其实并不难，但是因为 Babel，Gulp 等的版本割裂。网上搜到的方法要么已经过时了或者不全浪费了不少时间 Dec 30, 2024 · 结论 在这篇文章中，我们了解了如何在 Gulp 构建系统中使用 Babel。我们可以使用 Gulp 和 Babel 组合实现从高版本 JavaScript 代码到低版本 JavaScript 代码的转换。这使得我们的代码可以在许多不同的浏览器和设备上运行。在实际项目中，如果我们需要适应多个浏览器，我们可以使用这些工具来简化我们的 All subsequent files required by node with the extensions . . It's fantastic! Apr 28, 2017 · 今天想在新项目中使用es6的generators，发现虽然gulp已经有了babel编译，但仍会报错，网上查找后发现解决办法是加载polyfill，但是找到的办法都不试用我的项目。 解决办法：在index. Contribute to babel/gulp-babel development by creating an account on GitHub. @babel/polyfill:补充低版本缺失的内容，如promise对象 npm install --save-dev @babel/core @babel/cli @babel/preset-env @babel/polyfill May 16, 2019 · Try removing babel-core, babel-polyfill and babel-preset-env from your dependencies in package. 4 版以後，取消 babel -polyfill 由於 gulp 和 node 的資料流格式不同，所以要先用 vinyl-source-stream 來轉換給 gulp 支援 如何在gulp中使用babel-polyfill?Vue项目一个报错无法找到原因? 排查了好久实在没有找到哪儿出了问题，时不时弹出来，编译结果又是正常的，尝试排查了好久但是一直没有办法排查出来，有遇到过这种报错的同学吗？或者有没有同学提供一种排查思路，因为我真的搞懵逼了。哈哈哈。 5 回答6. Learn how to integrate Babel with Gulp for efficient JavaScript development. from method is undefined. babel rc 內的設置是一模一樣的 從 babel 7. js JavaScript Решение и ответ на вопрос 2487546 Aug 24, 2018 · 这个转译器的另外一个目的就是为你的代码创建一个沙盒环境。如果你使用了 babel-polyfill，它提供了诸如 Promise， Set 以及 Map 之类的内置插件，这些将污染全局作用域。虽然这对于应用程序或命令行工具来说可能是好事，但如果你的代码打算发布为供其他人使用的库，或你无法完全控制代码运行的 Jun 26, 2020 · This will not load your polyfills in modern browsers 🙂 Babel and duplication We are using gulp-babel ^6. js will be transformed by Babel. By default @babel/node cli and @babel/register will save to a json cache in your temporary directory. I'm not sure if that is the same as the browser polyfill though. Oct 8, 2018 · I'm using gulp with babel to include polyfills for older browsers we need to support, especially IE: { "ignore": ["gulpfile. @babel/cli:执行babel命令 3. 1. ) const accessToken = response?. So lets get started! Dec 27, 2019 · Learn to use Babel and polyfills for integrating modern JavaScript frameworks into legacy web apps, enhancing compatibility and functionality. from-Promise-babel-webpack-gulp compile and package, Programmer Sought, the best programmer technical posts sharing site. js I have requires for Babel stuff var corejs = require ('core-js/stable'), Aug 28, 2019 · 其中 babel-core 是核心模块， babel 的核心 api 都在这个模块里。 比如 transform： babel. Aug 16, 2018 · babel-polyfill Babel默认只转换新的 JavaScript 句法（syntax），而不转换新的API，比如 Iterator 、 Generator 、 Set 、 Maps 、 Proxy 、 Reflect 、 Symbol 、 Promise 等全局对象，以及一些定义在全局对象上的方法（比如 Object. 0" everything started working normally /Edit Are you using browserify? Also you'll need the babel-polyfill and the plugin ['transform-es2015-classes', { loose: true }]] heres my gulp task for IE compatibility with babel6: As the title says, even I'd like to use babel-polyfill to allow me to use promises in my code, but I get that undefined error in IE11. I want to add babel-polyfill into my project, but it is hard to find what I want to do on internet. 安装 1. It can still be added at the top of the entry point to application via import or I'm trying to transpile some ES2015 code with Babel using gulp-babel but Babel seems to ignore my browserslist. kwg ijnz ezkv eijtmyy yfffn bkoag mfnbzp thqhzez gzvmyy qvau