babel.config.js

module.exports = {
  presets: [
    [
      '@babel/preset-env',
      {
        // useBuiltIns: 'usage',
        modules: false,
        targets: {
          browsers: [
            '> 1%',
            'Android >= 4.4',
            'IOS >= 7',
            'ie >= 9'
          ]
        }
      }
    ]
  ]
};