Function use_window 

pub fn use_window() -> UseWindow

SSR safe window(). This returns just a new-type wrapper around Option<Window>. Calling this amounts to None on the server and Some(Window) on the client.

It provides some convenient methods for working with the window like document() and navigator(). These will all return None on the server.

Usage

let window = use_window();

// Returns `None` on the server but will not panic.
let navigator = window.navigator();