/*
 * @Description: 定义Babel在转换JavaScript代码
 * @Autor: renchao
 * @LastEditTime: 2023-07-20 15:12:44
 */
module.exports = {
  presets: [
    // https://github.com/vuejs/vue-cli/tree/master/packages/@vue/babel-preset-app
    // '@vue/cli-plugin-babel/preset'
    [
      "@vue/app",
      {
        "useBuiltIns": "entry",
        polyfills: [
          'es6.promise',
          'es6.symbol'
        ]
      }
    ]
  ],
  'env': {
    'development': {
      // babel-plugin-dynamic-import-node plugin only does one thing by converting all import() to require().
      // This plugin can significantly increase the speed of hot updates, when you have a large number of pages.
      // https://panjiachen.github.io/vue-element-admin-site/guide/advanced/lazy-loading.html
      'plugins': ['dynamic-import-node']
    }
  }
}