How to remove data from a Google Maps Data Layer?

Question

I see Google Maps support geojson. Looking at the docs here: https://developers.google.com/maps/documentation/javascript/datalayer#load_geojson

Given the last exampl

Answer 1

While map.data is designed as a placeholder for the common case of a single datasource, you can have multiple, and still use addGeoJSon using something like:

// load data - do the same for data2, data3 or whatever
data1 = new google.maps.Data();
data1.loadGeoJson(url1);

// create some layer control logic for turning on data1
data1.setMap(map) // or restyle or whatever

// turn off data1 and turn on data2
data1.setMap(null) // hides it
data2.setMap(map) // displays data2