I’ll translate the full article, preserving its conversational tone, code examples, and l...

I’ll translate the full article, preserving its conversational tone, code examples, and links.I’m checking that all nine validation examples are included. The regular expressions remain as written; their comments are translated into English.# Fan Group JS Basics Quiz #27: Writte...

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);
});