remove-text01-input.svelte

<script>
  let div
  let show

  // ✓ GOOD
  const toggle = () => (show = !show)

  // ✗ BAD
  const update = () => (div.textContent = "foo")
</script>

<div bind:this={div}>
  {#if show}
    div
  {/if}
</div>

<button on:click={() => toggle()}>Click Me (Good)</button>
<button on:click={() => update()}>Click Me (Bad)</button>