module.exports = {
  presets: [
    // https://github.com/vuejs/vue-cli/tree/master/packages/@vue/babel-preset-app
    // '@vue/cli-plugin-babel/preset'

    {
      "plugins": [
        [
          "import",
          {
            "libraryName": "vxe-table",
            "style": true // 样式是否也按需加载
          }
        ],
        [
          "@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']
    }
  }
}