// String style = ", style: new ol.style.Style({ image: new ol.style.Icon({ src: 'https://openlayers.org/en/latest/examples/data/icon.png' }) })";
String style = "";
String toEvaluate = "map.addLayer(new ol.layer.Vector({ source: " + vectorSource + style + "}));";
// String style = ", style: new ol.style.Style({ image: new ol.style.Icon({ src: 'https://openlayers.org/en/latest/examples/data/icon.png' }) })";
String style = "";
String toEvaluate = "map.addLayer(new ol.layer.Vector({ source: " + vectorSource + style + "}));";