A TypeScript-like language for WebAssembly.
OP you should look into AssemblyScript https://github.com/AssemblyScript/assemblyscript
NOTE: The number of mentions on this list indicates mentions on common posts plus user suggested alternatives. Hence, a higher number means a more popular project.
[AskJS] How big is AssemblyScript 3rd party libraries ecosystem?
Integrated a full WebAssembly VM into the engine (potentially as blueprint alt). Here's an example of hot reloading with AssemblyScript. Programming language agnostic scripting.
1 project | reddit.com/r/unrealengine | 11 May 2021
Is WebAssembly magic performance pixie dust?
3 projects | reddit.com/r/programming | 14 Apr 2021
An Urgent Notice from AssemblyScript
4 projects | news.ycombinator.com | 24 Jul 2021
Are PU inherit chances pre-calculated?
1 project | reddit.com/r/eu4 | 7 May 2022