[hombre_fatal]

Client side development isn’t trivial on any platform. Comparing a Go project with a client application just reveals that client apps rot faster because the devices that run them and the software on them are moving targets, esp mobile devices.

[Beltalowda]

Nothing fundamentally changed in the last few years AFAIK. I see no reason why it should rot faster. I've written things over ten years ago that work just fine today.

Client-side JavaScript is actually very compatible; see for example .at() to fix the [] subscripting behaviour (the reason [] wasn't changed was due to compatibility concerns; arr[-1] gets treated as arr["-1"], and changing it may break a script or two).