{
    "presets": [
        [
            "env",
            {
                "targets": {
                    "node": "6.9.0",
                    "browsers": ["chrome >= 54", "firefox ESR", "edge >= 12", "safari >= 10", "ie >= 11"]
                },
                "loose": true,
                "modules": false,
                "useBuiltIns": true,
                "debug": false
            }
        ]
    ],
    "plugins": [],
    "ignore": ["external/**/*"]
}