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.agents/skills/svelte-core-bestpractices/references/@render.md

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+To render a [snippet](snippet), use a `{@render ...}` tag.
+
+```svelte
+{#snippet sum(a, b)}
+	<p>{a} + {b} = {a + b}</p>
+{/snippet}
+
+{@render sum(1, 2)}
+{@render sum(3, 4)}
+{@render sum(5, 6)}
+```
+
+The expression can be an identifier like `sum`, or an arbitrary JavaScript expression:
+
+```svelte
+{@render (cool ? coolSnippet : lameSnippet)()}
+```
+
+## Optional snippets
+
+If the snippet is potentially undefined — for example, because it's an incoming prop — then you can use optional chaining to only render it when it _is_ defined:
+
+```svelte
+{@render children?.()}
+```
+
+Alternatively, use an [`{#if ...}`](if) block with an `:else` clause to render fallback content:
+
+```svelte
+{#if children}
+	{@render children()}
+{:else}
+	<p>fallback content</p>
+{/if}
+```