I’ll translate the full article, preserving its structure, code examples, and conversatio...

I’ll translate the full article, preserving its structure, code examples, and conversational tone.# DOM Basics Quiz #27: Q&A Transcript—A Few Things About Window Scrolling by zhangxinxu, from https://www.zhangxinxu.com/wordpress/?p=8425 This article may be reproduced in full. Pe...

Code: Dispatching a CustomEvent

const event = new CustomEvent('show', {
  detail: { message: payload, sentAt: new Date().toLocaleTimeString() }
});

window.dispatchEvent(event);

Code: Listening for the Event Payload

window.addEventListener('show', (event) => {
  render(event.detail.message, event.detail.sentAt);
});