<script> import { afterUpdate } from 'svelte'; import flash from './flash.js'; export let todo; let btn; afterUpdate(() => { flash(btn); }); </script> <!-- the text will flash red whenever the `todo` object changes --> <button bind:this={btn}> {todo.done ? '👍' : ''} {todo.text} </button> <style> button { cursor: pointer; border: none; background: none; font-size: 14px; } </style>