How to clear all markers?

[Marian Steinbach]

Hi!

I'd like to delete all markers from the map. Seems as if I can't find the according method in the documentation. How would I do that?

Thanks!

Marian

[Vladimir Agafonkin]

Hi Marian,

The best way to do this is to use a layer group for markers you add. That way you can do group.clearLayers() to remove all markers from it at once. See the example here: http://leaflet.cloudmade.com/examples/layers-control.html 

2012/2/22 Marian Steinbach <marian.s...@gmail.com>

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Vladimir Agafonkin
http://agafonkin.com/en
+380 (93) 745 44 61

[Marian Steinbach]

Thanks, Vladimir! I will try that. You'll here from me if I fail :)

[Ludovic]

Hi guys,
I wonder if clearLayers() used on a group of markers really deletes
the markers (ie destroys the markers "objects") or only remove the
markers from some kind of layer list (but the objects are still in
memory)? Do you see what I mean?
Ludo

On Feb 22, 1:25 pm, Marian Steinbach <marian.steinb...@gmail.com>
wrote:

[Jason Sanford]

Leaflet uses the `delete` method in JavaScript to remove layers from a L.LayerGroup object (https://github.com/CloudMade/Leaflet/blob/master/src/layer/LayerGroup.js#L33). 

According to http://stackoverflow.com/questions/742623/deleting-objects-in-javascript delete only deletes references to objects.

So, I'd imagine if you're not maintaining any other reference to these objects (e.g. myLayers = [marker1, marker2]) they would in fact be moved out of memory.

But I could be wrong.