Gotcha...I suppose you don't get any event when geoMap source changes right? Are you setting this? If you are you could use a separate stateful variable that you use to trigger the effect - ThreadSky

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paolo.ricciuti.me • 41 days ago

Gotcha...I suppose you don't get any event when geoMap source changes right? Are you setting this? If you are you could use a separate stateful variable that you use to trigger the effect

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michalweglarz.com•40 days ago

I am setting the source myself, just after map initialization in onMount.

If I do this:

geoMap = new GeoMap();
geoMap.addSource(…);
sourceAdded = true;

And then use sourceAdded in the effect, it works exactly as expected! No need for the snapshot anymore

michalweglarz.com•40 days ago

As a matter of fact I just realized there’s indeed a callback ‘SourceAddedCallback’ that I could use to react to source initialization.
Btw it’s mapbox-gl I’m working with. I’m not super familiar with it yet

paolo.ricciuti.me•40 days ago

Yup basically what I was saying...great 🤟🏻

michalweglarz.com•40 days ago

Thank you for helping me out! I feel like I understand effects much better now

paolo.ricciuti.me•40 days ago

I wonder if you could do something like this

https://svelte.dev/playground/6fd552d6918e43fdbd513b064fe49a0b?version=5.19.3

michalweglarz.com•40 days ago

That’s clever! A reactive proxy on top of a regular class. I think already found a solution but I’ll try to implement this later to see if this works.

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