You can even bind to properties inside an each block.

{#each todos as todo}
	<input
		type=checkbox
		bind:checked={todo.done}
	>

	<input
		placeholder="What needs to be done?"
		bind:value={todo.text}
	>
{/each}

Note that interacting with these <input> elements will mutate the array. If you prefer to work with immutable data, you should avoid these bindings and use event handlers instead.