In a Leaflet map, it is possible to add features to a GeoJSON layer using the
L.geoJSON:Creates a GeoJSON layer. Optionally accepts an object in GeoJSON format (you can alternatively add it later with addData method)
addData(data): Adds a GeoJSON object to the layer.
Is it possible to remove all features from the GeoJSON layer, without destroying the layer and recreating it?