Fascinated as I am by an up-and-coming Electron rival, I set out to prove (mostly to myself) how easy (or challenging!) it would be to try the 7 tasks brought to my attention in the recent post here:
https://news.ycombinator.com/item?id=24958725
The scripting language (TIScript) is very similar to JavaScript. My opinion is more-or-less the same as this commment's here:
https://news.ycombinator.com/item?id=23509653
"the different script language may be annoying the first day but you'll get used to it"
A version using actual JavaScript is in development, and I actually tried doing the 7GUIs tasks with it here:
https://github.com/GirkovArpa/sciter-js-7guis
But I hit some roadblocks based on not-yet-implemented JavaScript features. It looks promising but it's not quite there yet.
TIScript was probably better than JavaScript all-around back before ES6; I believe its syntax of $(selector) is copied from jQuery. It has some neat syntax not yet implemented in JavaScript though, like:
element.style.set { "background-color": "red" }
And JSX:
element.$append(<button>Click!</button>)
There's a ton of other stuff I haven't yet explored. I know Sciter gets posted a lot here but I think it does truly deserve more recognition.