svelte/test/runtime/samples/nested-transition-detach-if-false/Folder.html

<li>
	<span>{dir}</span>

	{#if open}
		<ul>
			{#each items as item (item.filename)}
				{#if item.isDir}
					<svelte:self dir={item.filename}/>
				{:else}
					<li>{item.filename}</li>
				{/if}
			{/each}
		</ul>
	{/if}
</li>

<script>
	export default {
		data() {
			return {
				items: [],
				open: true
			};
		},

		computed: {
			items: ({ dir }) => {
				return dir === 'a'
					? [
						{
							filename: 'a/b',
							isDir: true
						}
					]
					: [
						{
							filename: 'a/b/c',
							isDir: false
						}
					];
			}
		}
	};
</script>