Render Props with Snippets
Pass rendering logic as snippet props to invert control and increase flexibility.
Render Props with Snippets is a free Sveltejs Academy lesson on CoddyKit. This is lesson 1 of 4. You can read the complete lesson below for free — then practise it hands-on in the browser with a built-in code editor and a 24/7 AI tutor. It is part of the Sveltejs Academy learning path, and your progress syncs across the web and the CoddyKit app. The Sveltejs Academy course includes 4 lessons in total.
Render Props Pattern
Render props let a parent supply rendering logic to a child. In Svelte 5, snippets are the natural fit.
Pass a Snippet
The parent defines a snippet and passes it as a prop.
<!-- Parent -->
{#snippet item(thing)}
<li>{thing.name}</li>
{/snippet}
<List items={data} {item} />Render in Child
The child invokes the snippet with arguments for each item.
<!-- List.svelte -->
let { items, item } = $props();
{#each items as thing}
{@render item(thing)}
{/each}Inverted Control
This pattern inverts control: the child decides when to render; the parent decides what.
Reusability
One List component can render anything: products, users, posts.
TypeScript
Type the snippet parameter for compile-time safety and IDE autocomplete.
Compared to Slots
Snippets are more powerful: they accept arguments, can be conditional, and are typed.
Old Pattern: Slot Props
Svelte 4 had slot props (let:thing). Snippets generalize and replace this.
Multiple Snippets
Pass multiple snippets to compose richer UIs (header, item, footer).
Headless Components
Render props power headless component libraries that ship logic, not styling.
Use Cases
Tables, lists, virtualized scrollers, autocomplete, calendars.
Quick Check
What problem do render props solve?
Recap
Render props via snippets invert control. Parents supply rendering; children supply structure and timing.
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Frequently Asked Questions
Is the “Render Props with Snippets” lesson free?
Yes — the full text of “Render Props with Snippets” is free to read here on the web. To practise it interactively (a built-in code editor and a 24/7 AI tutor) and unlock the rest of the Sveltejs Academy course, upgrade to CoddyKit PRO. The Sveltejs Academy course includes 4 lessons in total.
What will I learn in “Render Props with Snippets”?
Pass rendering logic as snippet props to invert control and increase flexibility. You practise Sveltejs Academy with hands-on code you run directly in the browser, and a 24/7 AI tutor answers your questions as you work through the lesson.
Do I need any experience to start Sveltejs Academy?
No prior experience is required. Sveltejs Academy on CoddyKit is structured for beginners through advanced learners, so you can start here or from the beginning and move at your own pace. This is lesson 1 of 4.
How long does the “Render Props with Snippets” lesson take?
Most CoddyKit lessons take about 5–10 minutes. Each one is bite-sized and interactive, so you make steady progress and pick up exactly where you left off across the web and the app.
Can I write and run code in this Sveltejs Academy lesson?
Yes. Every Sveltejs Academy lesson includes a built-in code editor, so you write and run real code right in your browser and get instant AI feedback — no local setup required.
All lessons in this course
- Render Props with Snippets
- Higher-Order Components
- The Builder Pattern for Headless UI
- Compound Components with Context