const plugins = [];

// 生产环境移除 console.log/debug/info，保留 error/warn
if (process.env.NODE_ENV === 'production') {
  plugins.push(['transform-remove-console', { exclude: ['error', 'warn'] }]);
}

module.exports = {
  presets: [
    // https://github.com/vuejs/vue-cli/tree/master/packages/@vue/babel-preset-app
    '@vue/cli-plugin-babel/preset'
  ],
  plugins: plugins,
  '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.
      'plugins': ['dynamic-import-node']
    }
  }
}