创建测试文件
npm init -y
npm install --save-dev @babel/core @babel/cli @babel/preset-env @babel/node
npm install --save @babel/polyfill
touch babel.config.js
touch index.js
touch test.js
babel.config.js
const presets = [
["@babel/env",{
targets: {
edge:"17",
firefox:"60",
chrome:"67",
safari:"11.1"
}
}]
]
module.exports = { presets }
test.js
const a = 1;
export default a;
index.js
import a from "./test"
console.log(a)
运行
npx babel-node ./index.js
