I have this code:

```
var mapInit = function() {
    var trasaVyska = new google.maps.Marker({
        map: map,
        icon: "/i/yellow-dot.png",
        visible: false
    });

    var info = $("#info");

    var zobraz_trasu_na_mape = function(id) {
        zobrazInfo(null, id);
    }

    // more lines of code
}

$(document).ready(function() {
    mapInit();

    console.log(mapInit.trasaVyska);
    console.log(mapInit.info);
    console.log(mapInit.zobraz_trasu_na_mape);
});

```

Why is it showing in console "undefined" for all three?