# opener property

WindowBase opener
override

A reference to the window that opened this one.

    Window thisWindow = window;
    WindowBase otherWindow = thisWindow.open('http://www.example.com/', 'foo');
    print(otherWindow.opener == thisWindow); // 'true'

## Implementation

    WindowBase get opener => _convertNativeToDart_Window(this._get_opener);

void opener= (Window value)

## Implementation

    set opener(Window value) {
      JS("void", "#.opener = #", this, value);
    }