docs: add code of files being tested

[dummdidumm]

closes #14900

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[Rich-Harris]

preview: https://svelte-dev-git-preview-svelte-14925-svelte.vercel.app/

this is an automated message

[github-actions]

Playground

pnpm add https://pkg.pr.new/svelte@14925

[dummdidumm]

I don't understand why this fails the deployment with "has implicit any" errors, the code is correct - what am I missing?

[Rich-Harris]

The JSDoc -> TS conversion code here doesn't know how to deal with annotated methods, only function and variable declarations. We'll need to update it

[dummdidumm]

Adjusted that, still fails - turns out it's because of https://github.com/sveltejs/svelte.dev/blob/main/packages/site-kit/src/lib/markdown/renderer.ts#L702 where lang is always 'ts' - I have no idea how this worked until now, or if only by chance TS did fine so far. What was the reason for switching to hard-coding that as part of the shiki update in #288?

[dummdidumm]

I guess it's because twoslash does not run on JS files by default - will workaround it

[dummdidumm]

Mhm the preview still fails, looks like it does not incorporate changes from main once it created a branch for a PR - guess we just YOLO-merge it and see what happens.

[Rich-Harris]

It's still yikes-ing locally, I get this error:

Language ts not found, you may need to load it first

[Rich-Harris]

Huh I made some local changes, then reverted them, and then it built successfully? idk computers are weird