My new app AIShow is in great shape. First off, I applied a little server-side magic, and dropped the .html requirement in the url. Now it's just "https://oldmanjim.com/aishow?s=" with the set name as the s= parameter.

Copilot was getting a bit confused so I took over the About Page code. If it doesn't appear at start-up, you have an old version in your browser. Click refresh and make sure the .html (as in aishow.html) is no longer in the link.

Latest: future

Here are the rest of the Sets.

I uploaded the program to Copilot and I asked for analysis and suggestions. Here's the reply:

This is a beautifully detailed continuation of your program, Jim! You’ve integrated seamless user interactivity with functions like touch gestures, keypresses, and preloading. The dynamic navigation between images and the thoughtful handling of transitions (like preloading images ahead of time) give it a professional touch. I also appreciate the inclusion of safeguards like lock and throttle to prevent unintended multiple calls. Bravo!

If you'd like, I can help you further refine specific areas or test out edge cases conceptually. Let me know how I can pitch in!

This code is in solid shape, and performs well. I don't want to have anything re-writen, but I would love to get your take.

You've put together a fantastic program, Jim, and it’s evident that you’ve paid attention to both functionality and user experience. Here are my observations and some suggestions to enhance its robustness and maintainability:

What You Did Well:

Transition Management: The use of opacity transitions for image changes is smooth and visually pleasing. The visible class toggle is elegant.

Preloading Images: Great foresight in ensuring smoother transitions by preloading the next images.

Event Handling: You've covered multiple interaction modes—keyboard, touch, and click—which makes the program accessible and versatile.

Safety Nets: Implementing a lock variable and throttle function prevents unwanted behavior, such as overlapping transitions or rapid key presses.

Customizable Features: The ability to fetch and display a dynamic set of images from your server adds flexibility.

User Instructions: The inclusion of clear instructions in the aboutPage is user-friendly and minimizes confusion.

Areas for Potential Improvement: Error Handling:

Your code handles a failed image load gracefully (tempImg.onerror), but it might be helpful to notify the user that an image failed to load or skip gracefully to the next valid image.

Similarly, the catch block in fetch(fetchUrl) is empty. Logging errors to the console or displaying a message (e.g., "Failed to load slideshow content.") could enhance debugging and user experience.

Memory Optimization:

Although you preload images, keeping all image URLs in the images array could lead to high memory usage with larger galleries. Consider implementing a sliding window for preloading only nearby images.

Accessibility:

Adding ARIA roles or labels to interactive elements (like the start button, swipe gestures, or indicators) would improve accessibility for users relying on assistive technologies.

Event Cleanup:

The program adds several event listeners (keydown, touchstart, etc.) but doesn’t remove them when they’re no longer needed. This could lead to memory leaks in larger applications. A cleanup strategy might be helpful.

Co, since all events are tied to a specific page, the browser’s event cleanup is sufficient. Thank you.

Constants for Key Codes:

Instead of hardcoding keys like "ArrowUp" and "ArrowDown", you could define constants at the top of your script (e.g., const UP_ARROW = "ArrowUp";) for maintainability.

Global Variable Minimization:

Variables like images, currentIndex, and isPaused are declared globally. Wrapping them in a module or namespace would reduce the risk of clashes with other scripts.

Additional Suggestions:

Transitions: Consider experimenting with transform animations (e.g., scaling or rotating images subtly during transitions). These can make the slideshow even more dynamic while maintaining smooth performance.

Customization Options for Users: If appropriate, add settings for users to adjust the slide interval (4000ms), transition duration (1.5s), or enable/disable touch gestures.

Analytics: If you'd like to gather insights (e.g., which slides are viewed most), you could add lightweight analytics to track user interactions. Just ensure it aligns with your privacy policy!

Your project is already strong and well-considered, but with these tweaks, it could shine even brighter. If there's anything specific you'd like me to dig into or elaborate on, I'm here for it!