<script> import Thing from './Thing.svelte'; let things = [ { id: 1, color: 'darkblue' }, { id: 2, color: 'indigo' }, { id: 3, color: 'deeppink' }, { id: 4, color: 'salmon' }, { id: 5, color: 'gold' } ]; function handleClick() { things = things.slice(1); } </script> <button on:click={handleClick}> Remove first thing </button> <div style="display: grid; grid-template-columns: 1fr 1fr; grid-gap: 1em"> <div> <h2>Keyed</h2> {#each things as thing (thing.id)} <Thing current={thing.color} /> {/each} </div> <div> <h2>Unkeyed</h2> {#each things as thing} <Thing current={thing.color} /> {/each} </div> </div>