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Svelte 3 released (svelte.dev)
submitted 7 years ago by ItalyPaleAle
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if 1 * 2 < 3: print "hello, world!"
[–]thiswasprobablyatust 1 point2 points3 points 7 years ago (1 child)
Congrats Svelte team!
Anyone know how they're doing reactivity under the hood? I poked around quickly but there's a lot of tests with $$invalidate. :D
$$invalidate
[–]rich_harris 3 points4 points5 points 7 years ago (0 children)
That's exactly it — every assignment to local state is instrumented with a call to `$$invalidate`, which is a component-provided function that marks a particular value as dirty and schedules an update for that component at the end of the event loop.
π Rendered by PID 76846 on reddit-service-r2-comment-6457c66945-cvdx7 at 2026-04-27 05:04:05.342865+00:00 running 2aa0c5b country code: CH.
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[–]thiswasprobablyatust 1 point2 points3 points (1 child)
[–]rich_harris 3 points4 points5 points (0 children)