.babelrc

{
    "presets": [
        [
            "@babel/preset-env",
            {
                "modules": false
            }
        ],
        "@babel/preset-react"
    ],
    "plugins": [
        [
            "@babel/plugin-proposal-decorators",
            {
                "legacy": true
            }
        ],
        "@babel/plugin-proposal-class-properties",
        "@babel/plugin-syntax-dynamic-import",
        "@babel/plugin-syntax-import-meta",
        "@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-optional-chaining"
    ],
    "env": {
        "test": {
            "presets": [
                [
                    "@babel/preset-env",
                    {
                        "modules": "auto"
                    }
                ],
                "@babel/preset-react"
            ]
        }
    }
}