Element: popovershow event

The popovershow event of the Element interface fires on a popover element when it is shown.

# Syntax

Use the event name in methods like addEventListener(), or set the equivalent event handler property.

addEventListener("popovershow", (event) => {});
onpopovershow = (event) => {};

# Example

const popover = document.getElementById('my-popover');
const popoverToggleBtn = document.getElementById('my-popover-btn');

// Event listener version
popover.addEventListener('popovershow', () => {
  popoverToggleBtn.textContent = 'Dismiss popover';
})

// Event handler property version
popover.onpopovershow = () => {
  popoverToggleBtn.textContent = 'Dismiss popover';
}

# Browser compatibility

• The Popover API is planned for launch in Chrome 110, available in stable in early February 2023 (check the Chrome Roadmap for updates).
• It is enabled by default in Chrome Canary for local testing.
• Register for the Origin Trial if you want to test it in a production environment. Read Getting started with Chrome's origin trials for more information.
• There is a polyfill available at https://github.com/oddbird/popup-polyfill.

# See also

• The Popover API
• Pop-ups: They're making a resurgence!, by Jhey Tompkins
• Chrome Platform Status: The Popover API
• Open UI: Popover API Explainer