install babel command line
npm i -D @babel/core @babel/preset-env babel-loaderinstall babel command line
npm i -D @babel/core @babel/preset-env babel-loaderbabel cmd
babel src\app.js --out-file=public\scripts\app.js --presets=env,react --watchbabel
<!-- v6 <script src="https://unpkg.com/babel-standalone@6/babel.min.js"></script> -->
<script src="https://unpkg.com/@babel/standalone/babel.min.js"></script>
<!-- Your custom script here -->
<script type="text/babel">babel
// yarn add @babel/cli @babel/core @babel/node @babel/plugin-transform-runtime @babel/preset-env --dev
// yarn add @babel/runtime
"dependencies": {
"@babel/runtime": "^7.15.4" //a package to be installed production dependency to avoid duplication across your compiled output.
},
"devDependencies": {
"@babel/cli": "^7.15.7", // A built-in CLI which can be used to compile files from the command line/terminal.
"@babel/core": "^7.15.5", // a fundamental package to run any babel setup/configuration
"@babel/node": "^7.15.4", //babel-node is a CLI that works the same as the Node.js CLI, with the added benefit of compiling with Babel presets and plugins before running it.
"@babel/plugin-transform-runtime": "^7.15.0", // A plugin that enables the re-use of Babel's injected helper code to save on code size.
"@babel/preset-env": "^7.15.6" // is a smart preset that allows you to use the latest JavaScript without needing to micromanage which syntax transforms (and optionally, browser polyfills) are needed by your target environment(s).
}
// package.json
"scripts": {
"start": "yarn run build && node ./build/src/app.js",
"start:dev": "babel-node ./src/app.js",
"clean": "rm -rf build && mkdir build",
"build-babel": "babel ./src -d ./build/src",
"build": "yarn run clean && yarn run build-babel"
}
// .babelrc
{
"presets": ["@babel/preset-env"],
"plugins": [
["@babel/plugin-transform-runtime"]
]
}babel
npm install --save-dev @babel/core @babel/cli
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