Variables created in reactive statements are marked as unresolved

[TheOnlyTails]

When I create a variable in a reactive statement like so:

let count = 0;
$: doubled = count * 2;

The result is the following: In both the declaration site and any usage, the reactive variable is marked as unresolved.

[rafrafek]

I have the same problem in Pycharm Pro 2021.3

[he1d1]

A workaround is to split the declaration and assignment:

let count = 0;

let doubled;
$: doubled = count * 2;

[AnthoniG]

A workaround is to split the declaration and assignment:

let count = 0;

let doubled;
$: doubled = count * 2;

Thanks I was banging my head against the wall with this, until eventually I had to remove the lang="ts" and fall back to plain JavaScript.

[tomblachut]

Folks, I tried to reproduce this across versions and reactive declarations always work for me no matter if in JS or TS script. I'll need a reproduction project for this bug, I'm afraid.

[he1d1]

Folks, I tried to reproduce this across versions and reactive declarations always work for me no matter if in JS or TS script. I'll need a reproduction project for this bug, I'm afraid.

This usually happens after you shut the IDE completely and reopen it

[tomblachut]

Folks, I found the root cause, fix will be released soon

[TheOnlyTails]

Awesome, thank you!

[AndrewKirkovski]

Was there any regression recently? I'm having this issue in PhpStorm in fresh project

Happens inconsistently, some places work ok, some not

[TheOnlyTails]

I'm actually getting this too with the new SvelteKit changes:

<script lang="ts">
  export let data;
  $: ({ posts } = data)
  //    ^^^^^ -> error here, posts cannot be found
</script>

[tomblachut]

Folks, I'm assuming this is the 2022.2? Maybe something regressed in the core JS code, need to check

[Captain-Matroskin]

Folks, I'm assuming this is the 2022.2? Maybe something regressed in the core JS code, need to check

The same problem now. I use WebStorm 2022.3

[Scui1]

Issue still persists in WebStorm 2023.1.2 together with plugin version 231.8770.15

[tomblachut]

Covered by some other issues and mostly WEB-58397 use the svelte language server