I was exporting stuff to be a web export, because I have a website with my games on it. But, do the HTML and JavaScript files both have to be included?

on a somewhat -somewhat- unrelated topic, I made this cool post a while ago and nobody saw it. It's a website maker for all you people wanting your own website.

Yes, the HTML contains the player, you can customize the style, and the JS file has the actual game.

You can design your website the way you want, and use an iframe to embed the game HTML.

Thanks, @merwok!