I haven't written a single-page application, but when I published one of my websites last year, I wanted to make sure that as much of the functionality as possi

I haven't written a single-page application, but when I published one of my websites last year, I wanted to make sure that as much of the functionality as possible was available for users with Javascript disabled or unavailable. My target audience includes users of cheap phones in developing countries, and while I have heard a lot of developers say "less than 1% of my users don't use Javascript", I believe the numbers are a lot higher in developing countries. I cannot remember the estimates off the top of my head, but I remember it being a significant number. While cheap smartphones should shrink the gap in the future, I didn't want to be contributing to a systemic bias against users in developing countries. It's important to note, though, that my website was a side-project with no profit-motive, so I didn't have a deadline to meet and spent plenty of time testing the site for those edge cases.