# Create and Download ZIP Files Entirely with Client-Side JavaScript

# Create and Download ZIP Files Entirely with Client-Side JavaScript by zhangxinxu from https://www.zhangxinxu.com/wordpress/?p=8885 ## 1. How It Started I previously built an SVG Sprites extraction tool: upload a combined SVG Sprites file, and it splits it into individual SVG f...

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);
});