svelte/documentation/tutorial/15-context/01-context-api/app-a/Map.svelte

<script>
	import { onDestroy } from 'svelte';
	import { mapbox } from './mapbox.js';

	// set the context here...

	export let lat;
	export let lon;
	export let zoom;

	let container;
	let map;

	function load() {
		map = new mapbox.Map({
			container,
			style: 'mapbox://styles/mapbox/streets-v9',
			center: [lon, lat],
			zoom
		});
	}

	onDestroy(() => {
		if (map) map.remove();
	});
</script>

<!-- this special element will be explained in a later section -->
<svelte:head>
	<link rel="stylesheet" href="https://unpkg.com/mapbox-gl/dist/mapbox-gl.css" on:load={load} />
</svelte:head>

<div bind:this={container}>
	{#if map}
		<slot />
	{/if}
</div>

<style>
	div {
		width: 100%;
		height: 100%;
	}
</style>