Basic Svelte
Introduction
Bindings
Advanced Svelte
Advanced reactivity
Motion
Advanced bindings
Advanced transitions
Context API
Special elements
<script module>
Next steps
Basic SvelteKit
Introduction
Routing
Loading data
Headers and cookies
Shared modules
API routes
$app/state
Errors and redirects
Advanced SvelteKit
Page options
Link options
Advanced routing
Advanced loading
Environment variables
Conclusion
Ordinarily, transitions will only play on elements when their direct containing block is added or destroyed. In the example here, toggling the visibility of the entire list does not apply transitions to individual list elements.
Instead, we’d like transitions to not only play when individual items are added and removed with the slider but also when we toggle the checkbox.
We can achieve this with a global transition, which plays when any block containing the transitions is added or removed:
App
<div transition:slide|global>
{item}
</div>
In Svelte 3, transitions were global by default and you had to use the
|local
modifier to make them local.
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<script>
import { slide } from 'svelte/transition';
let items = ['one', 'two', 'three', 'four', 'five', 'six', 'seven', 'eight', 'nine', 'ten'];
let showItems = $state(true);
let i = $state(5);
</script>
<label>
<input type="checkbox" bind:checked={showItems} />
show list
</label>
<label>
<input type="range" bind:value={i} max="10" />
</label>
{#if showItems}
{#each items.slice(0, i) as item}
<div transition:slide>
{item}
</div>
{/each}
{/if}
<style>
div {
padding: 0.5em 0;
border-top: 1px solid #eee;
}
</style>