open property of the
HTMLDetailsElement interface is a boolean value reflecting the
open HTML attribute, indicating whether the
<details>'s contents (not counting the
<summary>) is to be shown to the user.
A boolean value.
The boolean value represents the state of the
open HTML attribute. The value of
true means it is set with both the summary and the additional information shown to the user. The
false value means it not set, with only the summary shown.
|HTML Standard |
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