ComputerGuy

> can you describe the situation in which the value can't be known? I don't understand > ```js > let known = count.get() > ``` By known, I mean a...

> this I understand (and am ok with, tbh) -- but I'd like to know what " user input, fetching, etc." patterns need the updater. I feel like I'm missing...

The asynchronous effects and deriveds would run on a separate schedule from the regular effects and deriveds. This would have similar internal functionality to the regular scheduler, and could probably...

> if you update the typings to accept an async function (btw i think we should not do such thing) but don't await the function when running the effect they...

See #15845

Isn't there be a smaller marker that could be used? An empty HTML comment is 7 characters, which could add up quickly. Perhaps there could be a more concise way...

> I think that would still add an element to the Dom which is probably even worse than a couple of gzippable characters...also I just checked and an empty element...

> Are text nodes the only reason for this or are there more situations that made this solution necessary? Another reason for this is that most of Svelte's core features,...

I'm not sure if this should also apply to implicit returns in arrow functions, does anyone have any input on that?

> it would be good to have a test, which would also help illuminate what is being supported I'll add the test in a bit. This PR allows you to...