Optimizing Scroll Restoration for Performance

Provide an example of using requestAnimationFrame for smooth scroll restoration to minimize layout shifts and enhance performance.

function restoreScrollPosition(pos) {
  requestAnimationFrame(() => {
    window.scrollTo({top: pos, behavior: 'smooth'});
    updateOffScreenContentVisibility();
  });
}

This function uses requestAnimationFrame to smoothly restore the scroll position. It postpones the scroll action until the browser is ready to repaint, minimizing layout shifts. After scrolling, it updates the visibility of off-screen content to optimize performance.

function updateOffScreenContentVisibility() {
  // Placeholder for updating visibility of off-screen content
  console.log('Updating off-screen content visibility.');
}

This is a placeholder function where logic to update the visibility of off-screen content would be implemented. It serves to illustrate where in the process such optimizations would take place.