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Basic Svelte
Introduction
Reactivity
Props
Logic
Events
Bindings
Classes and styles
Actions
Transitions
Advanced Svelte
Advanced reactivity
Reusing content
Motion
Advanced bindings
Advanced transitions
Context API
Special elements
<script module>
Next steps
Basic SvelteKit
Introduction
Routing
Loading data
Headers and cookies
Shared modules
Forms
API routes
$app/state
Errors and redirects
Advanced SvelteKit
Hooks
Page options
Link options
Advanced routing
Advanced loading
Environment variables
Conclusion
Advanced Svelte Special elements <svelte:window> bindings

We can also bind to certain properties of window, such as scrollY:

App
<svelte:window bind:scrollY={y} />

The list of properties you can bind to is as follows:

  • innerWidth
  • innerHeight
  • outerWidth
  • outerHeight
  • scrollX
  • scrollY
  • online — an alias for window.navigator.onLine

All except scrollX and scrollY are readonly.

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<svelte:window>
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<script>
	let y = $state(0);
</script>
 
<svelte:window />
 
<span>depth: {y}px</span>
 
<style>
	:global(body) {
		height: 400vw;
		background: url(./deepsea.webp);
		background-size: cover;
	}
 
	span {
		position: fixed;
		font-size: 2em;
		color: white;
		font-variant: tabular-nums;
	}
</style>