/**
 * Get the scroll position of the window
 *
 * @example
 * ```ts
 * {top, left} = scroll()
 * ```
 *
 * @returns The position of the scroll
 */
export function windowScroll(): FLib.DOM.Position {
    let sx, sy, d, r, b;

    if ( window.pageYOffset !== undefined ) {
        return {
            "left": window.pageXOffset,
            "top":  window.pageYOffset
        };
    }
    else {
        d  = document;
        r  = d.documentElement;
        b  = d.body;
        sx = r.scrollLeft || b.scrollLeft || 0;
        sy = r.scrollTop || b.scrollTop || 0;

        return {
            "left": sx,
            "top":  sy
        };
    }
}