# An Introduction to the DOMParser and XMLSerializer APIs

# An Introduction to the DOMParser and XMLSerializer APIs by zhangxinxu from https://www.zhangxinxu.com/wordpress/?p=8756 ## 1. Getting to Know DOMParser DOMParser parses an HTML string into a DOM tree, supporting formats such as XML and HTML documents. ### Syntax ```javascript ...

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);
});