C/C++ => WASM

Advantage: more compact WASM code, plus access of existing libs.

When you've written a new code module in a language like C/C++, you can compile it into WebAssembly using a tool like Emscripten. 

Compiling a New C/C++ Module to WebAssembly - WebAssembly | MDN

Compiling an Existing C Module to WebAssembly - WebAssembly | MDN

How to Compile C code into WebAssembly with Emscripten – The New Stack

alternative:

Bare metal WASM with C using Clang - no stdlib; no emscripten - Demo - YouTube

I want to… - WebAssembly

• C/C++
  • starting from scratch
  • library that I want to port to the Web
• Rust
• AssemblyScript (a TypeScript-like syntax)
• C#
• F#
• Go
  • with full language support
  • targeting minimal size
• Kotlin
• Swift
• D
• Pascal
• Zig
• Grain