Window.top
Returns a reference to the topmost window in the window hierarchy.
Syntax
var topWindow = window.top;
Notes
Where the 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
Specification |
---|
HTML Standard # dom-top-dev |
Browser compatibility
BCD tables only load in the browser