OverlayScrollbars/.babelrc.json

{
    "env": {
        "test": {
            "plugins": [
                "@babel/plugin-transform-modules-commonjs"
            ],
            "presets": [
                [
                    "@babel/preset-env",
                    {
                        "targets": {
                            "node": "current"
                        }
                    }
                ],
                "@babel/preset-typescript"
            ]
        }
    }
}