The HTMLDetailsElement interface provides special properties (beyond the regular HTMLElement interface it also has available to it by inheritance) for manipulating <details> elements.

EventTarget Node Element HTMLElement HTMLDetailsElement

Instance properties

Inherits properties from its parent, HTMLElement.

A boolean value reflecting the open HTML attribute, indicating whether or not the element's contents (not counting the <summary>) is to be shown to the user.

Instance methods

No specific method; inherits methods from its parent, HTMLElement.


Listen to this event using addEventListener() or by assigning an event listener to the oneventname property of this interface.


Fired when the open/closed state of a <details> element is toggled.


HTML Standard
# htmldetailselement

Browser compatibility

BCD tables only load in the browser

See also

  • The HTML element implementing this interface: <details>