expression-key02-input.svelte

<script>
  let things = [
    { id: 1, name: "apple" },
    { id: 2, name: "banana" },
    { id: 3, name: "carrot" },
    { id: 4, name: "doughnut" },
    { id: 5, name: "egg" },
  ]
  const foo = "thing_id="
</script>

{#each things as thing (foo + thing.id)}
  {thing.name}
{/each}