Window: top property

Returns a reference to the topmost window in the window hierarchy.


The reference to the topmost window.


Where the window.parent property returns the immediate parent of the current window, returns the topmost window in the hierarchy of window objects.

This property is especially useful when you are dealing with a window that is in a subframe of a parent or parents, and you want to get to the top-level frameset.


HTML Standard
# dom-top-dev

Browser compatibility

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