.babelrc

{
    "presets": [
        [
            "@babel/env",
            {
                "modules": false,
                "targets": {
                    "browsers": "> 0.25%, ie 11, not op_mini all, not dead",
                    "node": 8
                }
            }
        ],
        "@babel/react"
    ],
    "env": {
        "test": {
            "presets": [
                "@babel/env",
                "@babel/react"
            ]
        }
    }
}