.babelrc

{
  "presets": [
    [
      "@babel/preset-env",
      {
        "modules": false
      }
    ],
    "@babel/preset-react"
  ],
  "plugins": [
    // Stage 0
    "@babel/plugin-proposal-function-bind",
    // Stage 1
    "@babel/plugin-proposal-export-default-from",
    "@babel/plugin-proposal-logical-assignment-operators",
    [
      "@babel/plugin-proposal-optional-chaining",
      {
        "loose": false
      }
    ],
    [
      "@babel/plugin-proposal-pipeline-operator",
      {
        "proposal": "minimal"
      }
    ],
    [
      "@babel/plugin-proposal-nullish-coalescing-operator",
      {
        "loose": false
      }
    ],
    "@babel/plugin-proposal-do-expressions",
    // Stage 2
    [
      "@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",
    // Stage 3
    "@babel/plugin-syntax-dynamic-import",
    "@babel/plugin-syntax-import-meta",
    [
      "@babel/plugin-proposal-class-properties",
      {
        "loose": false
      }
    ],
    "@babel/plugin-proposal-json-strings",
    "@babel/plugin-proposal-object-rest-spread"
  ],
  "env": {
    "development": {
      "plugins": [
        "react-hot-loader/babel"
      ]
    }
  }
}