On Sunday, February 6, 2011, Rossko <[email protected]> wrote:
>
>> Can you explain why it makes a difference to iterate in this way?
>
> map.layers isn't an array
map.layers is a JavaScript Array. What makes you say it's not?
> - treat it more like a stack. When removeLaver
> is used on the first layer, the stack collapses, what was layer[1] becomes
> the new layer[0]
Yes.
Let's assume we have map.layers equal [l1, l2, l3], and we use
for(var i=0; i<map.layers.length; i++) {
map.removeLayer(map.layers[i]);
}
At iteration #1 (i=0) l1 is removed. At iteration #2 (i=1) l3 is
removed, and the iteration process stops with l2 still in the
map.layers array.
>
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--
Eric Lemoine
Camptocamp France SAS
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