.babelrc

{
  "presets": [
    "@babel/preset-env",
    "@babel/preset-react"
  ],
  "plugins": [
    "react-hot-loader/babel",
    "@babel/plugin-syntax-dynamic-import",
    "@babel/plugin-syntax-import-meta",
    [ "@babel/plugin-proposal-decorators",       { "legacy": true } ],
    [ "@babel/plugin-proposal-class-properties", { "loose": true } ],
    "@babel/plugin-proposal-json-strings",
    "@babel/plugin-proposal-function-sent",
    "@babel/plugin-proposal-export-namespace-from",
    "@babel/plugin-proposal-numeric-separator",
    "@babel/plugin-proposal-throw-expressions",
    "@babel/plugin-proposal-export-default-from",
    "@babel/plugin-proposal-logical-assignment-operators",
    "@babel/plugin-proposal-optional-chaining",
    [
      "@babel/plugin-proposal-pipeline-operator",
      {
        "proposal": "minimal"
      }
    ],
    "@babel/plugin-proposal-nullish-coalescing-operator",
    "@babel/plugin-proposal-do-expressions",
    "@babel/plugin-proposal-function-bind"
  ]
}