15 Matching Annotations
  1. Last 7 days
  2. Nov 2020
  3. Oct 2020
    1. My version of https://svelte.dev/repl/9c7d12357a15457bb914705702f156d1?version=3.19.2 from https://github.com/sveltejs/svelte/issues/4586

      to try to simplify and help me understand it better.

      So the lack of synchronousness is only noticed inside handleClick.

      By the time the DOM gets updated, it has a consistent/correct state.

      In other words, the console.log shows wrong value, but template shows correct value. So this might not be an actual problem for many/most use cases.

    1. I too have been confused by behavior like this. Perhaps a clearly defined way to isolate atomic units with synchronous reactivity would help those of us still working through the idiosyncrasies of reactivity.
    2. For performance reasons, $: reactive blocks are batched up and run in the next microtask. This is the expected behavior. This is one of the things that we should talk about when we figure out how and where we want to have a section in the docs that goes into more details about reactivity. If you want something that updates synchronously and depends on another value, you can use a derived store: