import { fn } from "https://deno.land/x/ddu_vim@v4.0.0/deps.ts";
const { winbufnr } = fn;
The result is a Number, which is the number of the buffer
associated with window {nr}. {nr} can be the window number or
the window-ID.
When {nr} is zero, the number of the buffer in the current
window is returned.
When window {nr} doesn't exist, -1 is returned.
Example:
:echo "The file in the current window is " . bufname(winbufnr(0))
Can also be used as a method:
FindWindow()->winbufnr()->bufname()
Parameters
denops: Denops