dart:html
closed property bool closed  Indicates whether this window has been closed. print(window.closed); // 'false'
window.close();
print(window.closed); // 'true'
 Source  @DomName('Window.closed')
@DocsEditable()
bool get closed => _blink.BlinkWindow.instance.closed_Getter_(this);

    
{'path': 'public/docs/dart~1/dart-html/window/closed.html', 'source': 'DevDocs.IO'}