riot/observable

module.exports = {
  env: {
    test: {
      plugins: [
        [
          'istanbul',
          {
            exclude: [
              '**/*.spec.js'
            ]
          }
        ]
      ]
    }
  },
  presets: [
    [
      '@babel/env',
      {
        useBuiltIns: 'entry',
        corejs: 3,
        modules: false,
        loose: true,
        targets: {
          'edge': 15
        }
      }
    ]
  ]
}