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Jan 24, 2018 · To start, you can use the env preset, which enables transforms for ES2015+: npm install babel-preset-env --save-dev. In order to enable the preset, you have to define it in your .babelrc file, like this: { "presets": ["env"] } Note that using Babel this way has a really limited use case.
Jan 24, 2018 · If you don't want to use CRA, you will need to install: babel-core. babel-preset-env. babel-preset-react. Then create a file .babelrc in the root of your project containing: { "presets": ["env", "react"] } Then install and configure Webpack to run the Babel transforms.
May 12, 2017 · I have Codepen code that I'm trying to replicate on an web page using just three files, index.html, main.js, and style.css. I tried loading these scripts on the head tag of HTML file. <script s...
Dec 29, 2018 · I'm using Babel-Standalone to use JSX in a React application without using NPM. Babel apparently translates 'import' statements into 'require' statements; importing 'require.js' and other dependenc...
Jan 12, 2016 · 1. Install babel-cli. First, as in the docs, you need to install babel-cli: $ npm install babel-cli. ______. 2. Define presets in .babelrc. Second, you need to use a .babelrc (docs) local to your files and explicitly define the presets that you want Babel to use. For example, for ES6+ features use the env preset.
Jul 26, 2018 · After that the babel-node can be run with npx without installation into the project: npx -p @babel/core -p @babel/node babel-node --presets @babel/preset-env app.js. If you install @babel/node into the project, npx will prefer project-local version. In case of Babel 6 the command below can be used: npx babel-node --presets env app.js.
An overview of the set up without ts-loader. Install Babel's TypeScript support. Only @babel/preset-typescript is mandatory; the other three add additional features that TypeScript supports. npm install --save-dev @babel/preset-typescript. npm install --save-dev @babel/preset-env.
Apr 21, 2020 · Expo can be created with two workflows. You would get a .babelrc for a bare workflow, and a babel.config.js for a managed workflow. If you have "babel.config.js" you could try the following instead of worrying about .babelrc. module.exports = function (api) {. api.cache(true);
Oct 7, 2017 · Including babel in browser is not really the way it is supposed to work. Babel is a build tool - it should be only a part of your build process. Most commonly, you would use a bundler like webpack or browserify, which can use babel to transpile your code from ES6 to ES5 (or other target version).
Feb 18, 2020 · babel.config.json is useful if you have multiple packages (ie multiple package.json) directories in your project that utilize a single babel config. This is less common. If your question is about file extensions (ie .js vs .json) with respect to babel configurations. Using .js exposes a babel config api.
