javascript / expert
Snippet
Decoupling UI Logic with Snippets
Snippets allow for a 'headless' component pattern where the parent component handles the structural logic (like iteration) while the consumer provides the specific markup for each item via a reusable template block.
snippet.js
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<script>let { items, renderItem } = $props();</script><ul>{#each items as item}<li>{@render renderItem(item)}</li>{/each}</ul>
svelte
Breakdown
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let { items, renderItem } = $props()
Receives a snippet named renderItem as a prop from the parent.
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{@render renderItem(item)}
Executes the passed snippet, injecting the local item data into the template.