{
    "presets": [
        "es2015", // [ "es2015", { "modules": false } ], // webpack understands the native import syntax, and uses it for tree shaking
        "react" // Transpile React components to JavaScript
    ],
    "plugins": [ // This order is important: last-to-first
        "transform-decorators-legacy",
        "transform-class-properties",
        "transform-object-rest-spread",
        [
            "transform-builtin-extend", 
            {
            "globals": ["Error", "Array"],
            "approximate": true
            }
        ]
    ],
    "sourceMaps": true,
    "retainLines": true
}