I'm so glad you mentioned that important topic! See what I wrote about using JavaScript as a scripting language for games compiled to WebAssembly with emscripten and exposed to JavaScript with embind:

https://news.ycombinator.com/item?id=40051289

Here's what I'm doing for Micropolis (open source SimCity), where the rubber hits the road. There are a bunch of comments in the code describing the approach and constraints. (Obviously analyzed and written with the help of ChatGPT!)

https://github.com/SimHacker/MicropolisCore/blob/main/Microp...

Implementing a JavaScript scripting SDK is the first step towards integrating browser-based visual programming languages like Snap! and Blockly, which make it easy to program extensions, like Sandspiel Studio!

Snap!:

https://snap.berkeley.edu/

Blockly:

https://developers.google.com/blockly

Sandspiel Studio:

https://studio.sandspiel.club/

I've written lots more about Sandspiel Studio on Twitter and Hacker News:

https://twitter.com/xardox/status/1777401152260247673

>I bet you could make Sandspiel Studio compile those Blockley-based visual programs into WebAssembly or GPU shader code! But actually it might be too fast since the fun is watching the flowers grow. I taught your flower blooming code to grow potatoes too!

https://studio.sandspiel.club/post/7718

https://news.ycombinator.com/item?id=34561910

https://news.ycombinator.com/item?id=36003900

https://news.ycombinator.com/item?id=38044329

https://news.ycombinator.com/item?id=38044498

https://news.ycombinator.com/item?id=39601709

https://news.ycombinator.com/item?id=38016554

https://news.ycombinator.com/item?id=33700318