svelte/documentation/tutorial/17-module-context/02-module-exports/app-b/AudioPlayer.svelte

<script context="module">
	const elements = new Set();

	export function stopAll() {
		elements.forEach((element) => {
			element.pause();
		});
	}
</script>

<script>
	import { onMount } from 'svelte';

	export let src;
	export let title;
	export let composer;
	export let performer;

	let audio;
	let paused = true;

	onMount(() => {
		elements.add(audio);
		return () => elements.delete(audio);
	});

	function stopOthers() {
		elements.forEach((element) => {
			if (element !== audio) element.pause();
		});
	}
</script>

<article class:playing={!paused}>
	<h2>{title}</h2>
	<p><strong>{composer}</strong> / performed by {performer}</p>

	<audio bind:this audio} bind:paused on:play={stopOthers} controls {src} />
</article>

<style>
	article {
		margin: 0 0 1em 0;
		max-width: 800px;
	}
	h2,
	p {
		margin: 0 0 0.3em 0;
	}
	audio {
		width: 100%;
		margin: 0.5em 0 1em 0;
	}
	.playing {
		color: #ff3e00;
	}
</style>