That is not actually a babel issue, you are just trying to run CommonJS code (transpiled from ES6 export) in the browser without preparation. CommonJS doesn’t run on the browser, you need to use a tool to package it for the browser, such as Webpack or Browserify. Just by coincidence this week I created a … Read more
You don’t tell Babel to target ES5, you choose the necessary presets/plugins that do that for you. For example, if you use the es2015 preset, this will compile ES6 code to ES5-compatible code. You don’t specify a “target”. The guide below will take you through using Babel to transform ES6 code into code that can … Read more
This changed a bit in babel v6. From the docs: The polyfill will emulate a full ES6 environment. This polyfill is automatically loaded when using babel-node. Installation: $ npm install babel-polyfill Usage in Node / Browserify / Webpack: To include the polyfill you need to require it at the top of the entry point to … Read more
If you use proposal-export-default-from Babel plugin (which is a part of stage-1 preset), you’ll be able to re-export default using the following code: export default from “./App.js” For more information see the ECMAScript proposal. Another way (without this plugin) is: export { default as App } from “./App.js” The above is a very common practice … Read more
in your webpack config did you already try @babel/preset-react instead of just react? Btw. you test for /\.js$/ Better test for /\.jsx?$/ (x? means x is optional), because you import a .jsx file in your index.js Not options: { presets: [‘react’] } but options: { presets: [‘@babel/preset-react’] }
You need to use babel standalone script to transpile the code, and you need to include the script for react and react-dom. If you include these tags in your <head>, it will work: <script src=”https://cdnjs.cloudflare.com/ajax/libs/babel-standalone/6.24.0/babel.js”></script> <script src=”https://cdnjs.cloudflare.com/ajax/libs/react/15.1.0/react.min.js”></script> <script src=”https://cdnjs.cloudflare.com/ajax/libs/react/15.1.0/react-dom.min.js”></script> Reason why it works with codepen: check the setting/javascript, there you will find the babel is … Read more
From Next.js 12, support for ES Modules is now enabled by default, as long as the ESM library has “type”: “module” in its package.json. Using next-transpile-modules to transpile ESM libraries is no longer required. Before Next.js 12 Since ky is exported as ESM you can transpile it with next-transpile-modules in next.config.js. // next.config.js const withTM … Read more
In order to use await/async you will need to install a couple of Babel dependencies. This works with Vuejs project – npm install –save-dev babel-polyfill npm install –save-dev babel-plugin-transform-regenerator Once installed, you will need to modify your .babelrc file to use the plugin as follows – { “plugins”: [“transform-regenerator”] } and also your webpack.config.js file … Read more
Since Babel 6 use babel-register hook to make on-the-fly transpilation. First: npm install babel-register Then require it with: require(‘babel-register’); // not using // require(‘babel/register’); // or // require(‘babel-core/register); To Convert your Ecmascript 6 code to ecmascript 5, you must set Babel presets option with require babel-register Like this: require(‘babel-register’)({ presets: [ ‘es2015’ ] }); Unlike … Read more
Babel v6 As of Babel v6, Babel doesn’t contain any transformers itself anymore. You have to explicitly specify any feature you want to transform. Presets – non ES2015 environment The quickest way to get this working is to use presets which already contain the set of plugins needed to transform ES2015 and newer proposals. For … Read more