[skylark]

I think the excitement around using JavaScript as a server runtime has peaked. If you search for node/express on Google Trends, you'll notice the interest leveled off about a year ago. This matches up with my own personal experience - engineers seem more willing to weigh the tradeoffs associated with using JavaScript on the server vs. using other frameworks like Flask, Ruby on Rails, Django, or SAAS offerings like Firebase and Google App Engine. There's a lot more maturity there than there was a few years ago.

I doubt that JavaScript on the web client is going anywhere. While wasm is interesting, it's still not really ready for prime time. These days if you're a frontend web engineer, you're forced to use JavaScript or a transpiles-to-JavaScript language.

The interest in JavaScript as a mobile runtime is still exploding. Searches for React Native have only been increasing over the years and shows no signs of slowing down. Compare this to iOS swift, which is trending down in popularity.

If you're wondering whether the JavaScript ecosystem is still a useful one to learn, I wholeheartedly believe it's not going anywhere for the foreseeable future.