TODO link to stores exercise
As we learned earlier, Svelte stores are a place to put data that doesn’t belong to an individual component.
SvelteKit makes three readonly stores available via the $app/stores module — page, navigating and updated. The one you’ll use most often is page, which provides information about the current page:
- url— the URL of the current page
- params— the current page’s parameters
- route— an object with an- idproperty representing the current route
- status— the HTTP status code of the current page
- error— the error object of the current page, if any (you’ll learn more about error handling in later exercises)
- data— the data for the current page, combining the return values of all- loadfunctions
- form— the data returned from a form action
As with any other store, you can reference its value in a component by prefixing its name with the $ symbol. For example, we can access the current pathname as $page.url.pathname:
src/routes/+layout
<script>
	import { page } from '$app/stores';
	let { children } = $props();
</script>
<nav>
	<a href="/" aria-current={$page.url.pathname === '/'}>
		home
	</a>
	<a href="/about" aria-current={$page.url.pathname === '/about'}>
		about
	</a>
</nav>
{@render children()}previous next
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<h1>home</h1>
<p>this is the home page.</p>