Window top Property
Example
Is this window the topmost window:
if (window.top != window.self) {
text = "This window is NOT the topmost window!";
} else {
text = "This window is the topmost window!";
}
Try it Yourself »
Description
The top property returns the topmost window in the current browser window.
The top property is read-only.
Note
The top property is not the same as the
parent property.
window.top returns the topmost window in the hierarchy of windows.
window.parent returns the immediate parent of a window.
See Also:
Syntax
window.top
Return Value
| Type | Description |
| An object. | The topmost window in the hierarchy of windows in the current browser window. |
Browser Support
window.top is supported in all browsers:
| Chrome | Edge | Firefox | Safari | Opera | IE |
| Yes | Yes | Yes | Yes | Yes | Yes |
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