{
  "presets": [
    [
      "env",
      {
        "useBuiltIns": "usage",
        "targets": {
          "uglify": true,
          "browsers": [
            "last 2 Chrome versions",
            "last 2 ChromeAndroid versions",
            "last 2 Safari versions",
            "last 2 Firefox versions",
            "last 2 Edge versions",
            "last 2 iOS versions",
            "last 2 Opera versions"
          ]
        }
      }
    ],
    "react"
  ],
  "plugins": [
    "transform-object-rest-spread"
  ],
  "env": {
    "test": {
      "presets": [
        "react"
      ],
      "plugins": [
        "transform-es2015-modules-commonjs"
      ]
    }
  }
}