have refresh clear layers directly before loading new

[mike16889]

would it be possible to have the refresh feature on clear layers once the new data has been downloaded and about to be applied, maybe by use of the middleware function?

As it currently sits it clears the layer and a a second or more passes and the new one appears. if it was done after the data was loaded it should just be a flash and any new ones would seem to just appear.

I would write the code myself and contribute it but i am just learning javascript and even the simplest tasks at the moment are basically just trial and error for me.

[calvinmetcalf]

due to how it's set up where you can have multiple layers in there that's not so easy a task, you could manually load the data and then swap it out yourself like

var geojsonLayer = new L.GeoJSON.AJAX(your url);
// geojsonLayer.refresh()
L.Util.ajax(your url).then(function (data) {
  geojsonLayer.clearLayers();
  geojsonLayer.addData(data);
});

L.Util.ajax is what this uses behind the scenes and returns a promise