The HTMLDetailsElement interface provides special properties (beyond the regular HTMLElement interface it also has available to it by inheritance) for manipulating <details> elements.
Inherits properties from its parent, HTMLElement.
HTMLDetailsElement.openboolean reflecting the open HTML attribute, indicating whether or not the element’s contents (not counting the <summary>) is to be shown to the user.No specific method; inherits methods from its parent, HTMLElement.
| Feature | Chrome | Edge | Firefox (Gecko) | Internet Explorer | Opera | Safari (WebKit) |
|---|---|---|---|---|---|---|
| Basic support | ? | ? | ? | ? | ? | ? |
| Feature | Android | Edge | Firefox Mobile (Gecko) | IE Phone | Opera Mobile | Safari Mobile |
|---|---|---|---|---|---|---|
| Basic support | ? | ? | ? | ? | ? | ? |
<details>.
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https://developer.mozilla.org/en-US/docs/Web/API/HTMLDetailsElement