babel.config.json

{
    "presets": [
        [
            "@babel/preset-react",
            {
                "loose": false
            }
        ],
        "@babel/preset-typescript"
    ],
    "plugins": [
        "@babel/plugin-syntax-dynamic-import",
        "@babel/plugin-transform-react-jsx",
        "@babel/plugin-transform-template-literals",
        "@babel/plugin-proposal-export-namespace-from",
        "@babel/plugin-proposal-export-default-from",
        "@babel/plugin-transform-runtime",
        "@babel/plugin-proposal-optional-chaining",
        "@babel/plugin-proposal-nullish-coalescing-operator",
        "transform-es2015-template-literals",
        "@loadable/babel-plugin",
        [
            "babel-plugin-named-asset-import",
            {
                "loaderMap": {
                    "svg": {
                        "ReactComponent": "@svgr/webpack?-svgo,+titleProp,+ref![path]"
                    }
                }
            }
        ],
        [
            "@babel/plugin-proposal-object-rest-spread",
            {
                "useBuiltIns": true
            }
        ],
        [
            "@babel/plugin-proposal-class-properties",
            {
                "loose": true
            }
        ]
    ],
    "env": {
        "cjs": {
            "presets": [
                [
                    "@babel/preset-env",
                    {
                        "loose": false
                    }
                ],
                [
                    "@babel/preset-react",
                    {
                        "loose": false
                    }
                ],
                [
                    "@babel/preset-typescript",
                    {
                        "loose": false
                    }
                ]
            ]
        },
        "test": {
            "presets": [
                "@babel/preset-env",
                "@babel/preset-typescript"
            ],
            "plugins": [
                "@babel/plugin-transform-modules-commonjs"
            ]
        }
    }
}