Offline Transform

First install the  command-line tools (requires ):

npm install --global babel-clinpm install babel-preset-react

Then, translate your src/helloworld.js file to plain JavaScript:

babel --presets react {源代码目录} --watch --out-dir {输出目录}

Note:

If you are using ES2015, you will want to also use the babel-preset-es2015 package.