Reloading associated form data

A successful submit appends to a server-side list. The hydrated version refetches /api/guestbook to update in place; the plain version relies on the post-POST page re-render with fresh serverProps.

Each successful submit appends the name to an in-memory list on the server. The hydrated version refetches /api/guestbook after a successful submit and updates the list in place. The plain version submits natively, the page re-renders with a fresh guestbook serverProp, and the new name shows up after the reload.

With `{@attach enhance(...)}`

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Plain HTML

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<script lang="ts">
  import Guestbook from './Guestbook.svelte';

  type GuestbookEntry = { id: string; name: string; at: number };

  let { guestbook } = $props<{ guestbook: GuestbookEntry[] }>();
</script>

<p>
  Each successful submit appends the name to an in-memory list on the server. The hydrated version refetches <code>/api/guestbook</code> after a successful submit and updates the
  list in place. The plain version submits natively, the page re-renders with a fresh <code>guestbook</code> serverProp, and the new name shows up after the reload.
</p>
<h3>With <code>{'{@attach enhance(...)}'}</code></h3>
<Guestbook entries={guestbook} mochi:hydrate />
<h3>Plain HTML</h3>
<Guestbook entries={guestbook} />

Styles

<style>
  h3 {
    margin: 1.5rem 0 0.25rem;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-muted);
  }

  p {
    margin: 0 0 0.5rem;
    font-size: 0.9rem;
    color: var(--text-muted);
  }

  code {
    background: var(--code-bg);
    color: var(--code-accent);
    padding: 0.05rem 0.35rem;
    border-radius: var(--radius-sm);
    font-family: var(--font-mono);
    font-size: 0.85rem;
  }
</style>