Svelte 5: misleading error message

[7nik]

Describe the bug

The error says The $effect rune is only available inside .svelte and .svelte.js/ts files though the file ends with .svelte.js, but the true error is $effect.active is used but not called.

Reproduction

REPL

Logs

No response

System Info

Svelte v5.0.0-next.90

Severity

annoyance

[7nik]

On the REPL, the code autocompletion should insert $effect.active() instead of $effect.active.