Window: thuộc tính parent
Baseline
Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.
The Window.parent property is a reference to the parent
of the current window or subframe.
If a window does not have a parent, its parent property is a reference to
itself.
When a window is loaded in an <iframe>, <object>, or
<frame>, its parent is the window with the element embedding the
window.
Giá trị
A Window or <iframe> object.
Ví dụ
js
if (window.parent !== window.top) {
// We're deeper than one down
}
Đặc tả kỹ thuật
| Specification |
|---|
| HTML # dom-parent-dev |
Tính tương thích trên trình duyệt
Xem thêm
window.frameElementreturns the specific element (such as<iframe>) thewindowis embedded into.window.topreturns a reference to the top-level window.