{
  "presets": [
    ["env", {
      "targets": {
        "browsers": [
          "last 3 Chrome versions",
          "last 3 Firefox versions",
          "last 3 Safari versions",
          "last 3 Edge versions",
          "IE 11"
        ]
      },
      "useBuiltIns": true
    }],
    "react"
  ],
  "plugins": [
    "transform-class-properties",
    ["transform-object-rest-spread", {
      // use built-in `Object.assign`
      "useBuiltIns": true
    }]
  ],
  "env": {
    "production": {
      "plugins": [
        "transform-react-constant-elements"
      ]
    },
    "development": {
      "plugins": [
        "transform-react-jsx-source",
        "transform-react-jsx-self"
      ]
    },
    "test": {
      "plugins": [
        "transform-react-jsx-source",
        "transform-react-jsx-self"
      ]
    }
  },
  "ignore": [
    "**/libs/**"
  ]
}