svelte/test/runtime/samples/binding-input-checkbox-with-event-in-each/main.html

{#each cats as cat (cat.name)}
	<input type="checkbox" bind:checked="cat.checked" on:change="someCheck()">
{/each}

<script>
	export default {
		oncreate() {},
		methods: {
			someCheck() {
				console.log('Check');
			}
		},
	};
</script>