Typescript for error on fallback function?

[louispotok]

I use Typescript in my project and just updated from v7 to v8. I see that the FallbackRender type now has error: unknown. I believe in Sentry 7 I was typing this as an Error and accessing name and message from it. Now it looks like the example in the docs just calls toString. Is there any more specific type I can give it rather than unknown?

[AbhiPrasad]

@louispotok this is intentional because anything can be used with a throw statement. See: https://github.com/getsentry/sentry-javascript/blob/develop/MIGRATION.md#updated-error-types-to-be-unknown-instead-of-error

I think you should use typeof Error checks to enforce that the thrown variable is an error.

[louispotok]

Oh, missed that in the migration guide. Makes sense, thanks!

[AbhiPrasad]

We should have included it in the main docs! I made a PR for the change :) getsentry/sentry-docs#10455

now in main docs: https://docs.sentry.io/platforms/javascript/guides/react/migration/v7-to-v8/

Wouldn't have happened with you reaching out, thank you for the feedback!!!