.babelrc

{
  "presets": [
    [
      "@babel/preset-env",
      {
        "shippedProposals": true,
        "useBuiltIns": "usage",
        "corejs": 3,
        "targets": {
          "browsers": ["last 2 versions"]
        }
      }
    ],
    "@babel/preset-typescript",
    "@babel/preset-react"
  ],

  "plugins": [
    "@babel/plugin-transform-react-jsx",
    "@babel/plugin-syntax-dynamic-import",
    ["@babel/plugin-proposal-class-properties", { "loose": false }]
  ]
}