How to work with PolyglotMap

[wlnirvana]

I have something similar to the following, where invokeFunction returns an object myDataObject here) internally of the type PolyglotMap, but can only be typed statically as Object. I'm wondering how the data can be extracted out.

        ScriptEngineManager manager = new ScriptEngineManager();
        ScriptEngine engine = manager.getEngineByName("graal.js");
        URL url = Foobar.class.getClassLoader().getResource("foobar.js");
        engine.eval(Files.newBufferedReader(Paths.get(url.toURI()), StandardCharsets.UTF_8));

        Invocable inv = (Invocable) engine;
        var myDataObject =  (inv.invokeFunction("main", "testing data"));

[wirthi]

Hi,

PolyglotMap implements java.util.Map so that's how you can access it.

Best, Christian