I'm writing a web-viewer with Leaflet using multiple layers (some with Tiles and some with geosjson contours) that I had processed using GDAL. I'd like to display a label with the value of the contour when I activate the respective layer, and disable it when it is not visible. The same with all contour layers. I have tried this code but the labels are displayed at load, without hiding if I deactivate the layer.

L.geoJson(mydataset, 
{onEachFeature: function(feature, layer) {
    var label = L.marker(layer.getBounds().getCenter(), {
      icon: L.divIcon({
        className: 'label',
        html: feature.properties.MY_VARIABLE,
        iconSize: [100, 40]
      })
    }).addTo(map);
  }
});

I know that }).addTo(map) could be the cause of that. Thanks for the suggestions