OptionalchildrenOptionalcloseClose the menu.
OptionalcloseWhether to automatically close the menu whenever one of its controls receives an input (e.g. when a radio button is clicked).
OptionalheadingA slot for the menu's heading.
OptionalopenOpen the menu.
OptionalconnectedInvoked when the component is added to the document's DOM.
In connectedCallback() you should setup tasks that should only occur when
the element is connected to the document. The most common of these is
adding event listeners to nodes external to the element, like a keydown
event handler added to the window.
connectedCallback() {
super.connectedCallback();
addEventListener('keydown', this._handleKeydown);
}
Typically, anything done in connectedCallback() should be undone when the
element is disconnected, in disconnectedCallback().
The menu's contents.