.babelrc

{
    "presets": [
      [
        "@babel/preset-env",
        {
          "targets": {
            "chrome": "56",
            "firefox": "59"
          },
          "useBuiltIns": "entry",
          "corejs": 3
        }
      ],
      "@babel/preset-react"
    ],
    "plugins": [
      [
        "@babel/plugin-proposal-decorators",
        {
          "legacy": true
        }
      ],
      "@babel/plugin-proposal-function-sent",
      "@babel/plugin-proposal-export-namespace-from",
      "@babel/plugin-proposal-numeric-separator",
      "@babel/plugin-proposal-throw-expressions",
      "@babel/plugin-syntax-dynamic-import",
      [
        "@babel/plugin-proposal-class-properties",
        {
          "loose": true
        }
      ],
      [
        "@babel/plugin-transform-runtime",
        {
          "helpers": true,
          "regenerator": true
        }
      ]
    ],
    "env": {
      "production": {
        "plugins":  [
          [
            "transform-react-remove-prop-types",
            {
              "mode": "remove",
              "removeImport": true,
              "ignoreFilenames": ["node_modules"]
            }
          ]
        ]
      }
    }
  }