The hidePopover() method of the HTMLElement interface hides a popover element (i.e. one that has a valid popover attribute) by removing it from the top layer and styling it with display: none.

When hidePopover() is called on a showing element with the popover attribute, a beforetoggle event will be fired, followed by the popover being hidden, and then the toggle event firing. If the element is already hidden, an error is thrown.

None.

None (undefined).

InvalidStateError DOMException

Thrown if the popover is already hidden.

The following example provides functionality to hide a popover by pressing a particular key on the keyboard.

First, some HTML:

<div id="mypopover">
  <h2>Help!</h2>

  <p>You can use the following commands to control the app</p>

  <ul>
    <li>Press <ins>C</ins> to order cheese</li>
    <li>Press <ins>T</ins> to order tofu</li>
    <li>Press <ins>B</ins> to order bacon</li>
    <hr />
    <li>Say "Service" to summon the robot waiter to take your order</li>
    <li>Say "Escape" to engage the ejector seat</li>
  </ul>
</div>

And now the JavaScript to wire up the functionality:

const popover = document.getElementById("mypopover");

document.addEventListener("keydown", (event) => {
  if (event.key === "h") {
    popover.hidePopover();
  }
});

• Popover API