.babelrc

{
  "compact": true,
  "presets": [
    [
      "@babel/preset-env"
      // {
      //   "targets": {
      //     "node": true,
      //     "chrome": "58",
      //     "ie": "11"
      //   }
      // },
      // "stage-0"
    ],
    "@babel/preset-react"
    // "es2015"
  ],

  "plugins": [
    "syntax-dynamic-import",
    "@babel/plugin-proposal-function-sent",
    "@babel/plugin-proposal-optional-chaining",
    ["@babel/plugin-transform-arrow-functions", { "loose": true }],
    [
      "@babel/plugin-transform-runtime"
      //   {
      //     "absoluteRuntime": false,
      //     "corejs": 3
      //   }
    ],
    "@babel/plugin-syntax-dynamic-import",
    "@babel/plugin-syntax-import-meta",
    "@babel/plugin-proposal-async-generator-functions",
    "@babel/plugin-transform-dotall-regex",
    "@babel/plugin-proposal-export-default-from",
    "@babel/plugin-proposal-export-namespace-from",
    ["@babel/plugin-proposal-class-static-block", { "loose": true }],
    [
      "@babel/plugin-proposal-decorators",
      {
        // "legacy": true,
        "version": "legacy"
      }
    ],
    [
      "@babel/plugin-proposal-class-properties",
      {
        "loose": true
      }
    ],
    ["@babel/plugin-proposal-private-property-in-object", { "loose": true }],
    ["@babel/plugin-proposal-private-methods", { "loose": true }],
    "@babel/plugin-proposal-json-strings",
    [
      "@babel/plugin-transform-regenerator",
      {
        "asyncGenerators": false,
        "generators": false,
        "async": false
      }
    ]
  ]
}