It's techniques were used all over the place back then, it was just more common to be piecemealed together from jQuery. (or in 2005, probably prototype.js) and whatever other "scripts" you could find (as this was a time before npm and github, javascript "libraries" had no formal publishing mechanism).
I haven't used htmx, but if I'm not mistaken it uses plenty of tech that is more recent than 2005. HTML5 wasn't even released yet and the JS DOM was far from a standardized thing that you could expect consistent behavior across browser vendors. I doubt htmx developed back then would look anything like it does today.
I haven't used htmx, but if I'm not mistaken it uses plenty of tech that is more recent than 2005. HTML5 wasn't even released yet and the JS DOM was far from a standardized thing that you could expect consistent behavior across browser vendors. I doubt htmx developed back then would look anything like it does today.