I have implemented the CSS/Javascript slideshow from https://www.w3schools.com/howto/howto_js_slideshow.asp with a few tweaks on a friend's portfolio site:
http://bradireland.com/index.html
I've had a request to make the left and right arrows work if the user clicks the left and right arrows on their keyboard, or swipes left and right on a tablet/laptop.
Anyone had any success with either of these? Hoping to not replace the existing code but add to it, if possible.
Thanks!