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Conclusion

贴心的Svelte还为复选框提供了bind:checked哦,这样我们就可以轻松获取复选框是否被选中了。

Checkboxes are used for toggling between states. Instead of binding to input.value, we bind to input.checked:

App
<input type="checkbox" bind:checked={yes}>

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<script>
	let yes = $state(false);
</script>
 
<label>
	<input type="checkbox" checked={yes} />
	Yes! Send me regular email spam
</label>
 
{#if yes}
	<p>
		Thank you. We will bombard your inbox and sell
		your personal details.
	</p>
{:else}
	<p>
		You must opt in to continue. If you're not
		paying, you're the product.
	</p>
{/if}
 
<button disabled={!yes}>Subscribe</button>