Why JavaScript, out of all languages in the world?

I don’t think that’s a particularly great choice.

Javascript is just a platform to run transcompiled stuff on these days, not unlike the name giver's JVM

Large headcount of developers. Everybody and their dog does Javascript.

If that's your metric, java has many more developers (millions more, in fact).

There are all sorts of optimizations that are much harder to do in a non statically typed language. There are also all types of guaranteed safe automated refactoring you can do with a statically type language. I shutter to think about using a non type safe language with a large code base.

Us holdouts would like to have somewhere left to run to too.

So by that metric, Java is a significantly better choice still ;)

Javascript would not meet the 'fast' requirement, as expressed in the linked article.

The only requirement Javascript meets is being included by default in web browsers.

Javascript is not a good choice. It's both verbose and unsafe.

Javascript meets the 'safe' definition in the article - memory safe.

It’s still fairly easy to have subtle memory leaks in JavaScript code due to the way closures can keep variables in scope indefinitely.

https://blog.meteor.com/an-interesting-kind-of-javascript-me...

Memory leaks are memory safe, or, at least, don't lead to memory corruption like other violations of memory safety. https://huonw.github.io/blog/2016/04/memory-leaks-are-memory...

Apple already has with JavaScriptCore.

And what few people know, is that Apple already had a platform where all of the “apps” were written with JavaScript + TVML (a proprietary Apple markup language) - the 3rd Gen AppleTV. If I’m not mistaken, you can still write apps for the ATV4 that way.

Plex was ported to the 3rd Gen AppleTV as an unofficial app just by running a server on your computer and redirecting DNS to it.

https://github.com/iBaa/PlexConnect/wiki/Install-Guide

You can still on the current Apple TV. In fact if your app is just full of video content or similar then you probably should.

Wow. That looks easy.....

https://www.raywenderlich.com/372-tvos-tutorial-using-tvml-t...