I’ll translate the full article into English, preserving its tone, structure, and code ex...

I’ll translate the full article into English, preserving its tone, structure, and code examples.# An Introduction to the JavaScript String Padding Methods padStart() and padEnd() This article was published on Tuesday, July 24, 2018, at 00:29, under JS API. by zhangxinxu from htt...

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);
});