babel-loaderの設定でexclude: /(node_modules|bower_components)/しているのは何故でしょうか webpackES6Javascriptbabel-loader Github babel-loaderREADME.md`exclude` module: { rules: [ { test: /\.js$/, exclude: /(node_modules|bower_components)/, use: { loader: 'babel-loader', options: { presets: ['env'] } } } ] } `node_module`JavascriptJavascript`exclude`

polyfill

Qiita
webpackbabelnode_modulesexclude

`exclude`
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