My website uses JavaScript to fetch data from WordPress API, so the final output will be some HTML, CSS, and JS files… But where should I put these files to read data from WordPress API? public_html?

I'm developing a website, and it has a .js file that fetches the data from WordPress API to display them in the .html files. Right now I'm working with XAMPP, and everything works fine in localhost.

But, in the live version, I know I have to put WordPress in public_html, but where do I put the folder that contains .html, .css, and .js files? Just in public_html?