Dynamic Layer Name - Leaflet Layer Control

Question

I would like to have the name of a layer used by Leaflets layer control feature come from a variable instead of a string and based on data from the layer. The example shown below uses the variable layerName.

Is this even possible since it is expecting a name value pair? Is there a work around?

var layerName = feature.properties.condition[0];
//layer control
var baseMaps = {
 "OpenStreetMap": OSM,
 "Aerial Imagery": MapQuestOpen_Aerial
};
var overlayMaps = {
 layerName: layer1,
};
L.control.layers(baseMaps, overlayMaps).addTo(map);

Answer 1

According to the Leaflet documentation, the layer config is an object literal with layer names as keys and layer objects as values.

That means you can use [] to set the object key, here is the modified codes:

var layerName = feature.properties.condition[0];
//layer control
var baseMaps = {
 "OpenStreetMap": OSM,
 "Aerial Imagery": MapQuestOpen_Aerial
};
//create the layer config object first
var overlayMaps = {
 //layerName: layer1,
};
//add the layer to the overlayMaps with a dynamic layer name
overlayMaps[layerName] = layer1;
L.control.layers(baseMaps, overlayMaps).addTo(map);