Window: top property

{{APIRef}}

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

Value

The reference to the topmost window.

Notes

Where the {{domxref("window.parent")}} property returns the immediate parent of the current window, window.top 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.

Specifications

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Browser compatibility

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