description

# window top-level property Null safety

Window window

Top-level container for a web page, which is usually a browser tab or window.

Each web page loaded in the browser has its own Window, which is a container for the web page.

If the web page has any `<iframe>` elements, then each `<iframe>` has its own Window object, which is accessible only to that `<iframe>`.

See also:

- Window from MDN.

## Implementation

    Window get window => JS('Window', 'window');