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How to create minimal wasm module

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howto-wasm-minimal Goals Mystic issue Install Summary Why WASM? Try
it

README.md

 howto-wasm-minimal

How to create minimal wasm module - PoC

 Goals

  * use no Emscripten or any libs
  * simple toolchain, compile to wasm in a single step
  * wasm may use memory prepared by JavaScript
  * do something relative compute-intensive
  * do something visible

 Mystic issue

Symptom: on some systems, the linker may hang, or produce output file
with correct size but full of zeros (that's why build script contains
a hexdump as last step).

Solution: update your linker.

More info: https://stackoverflow.com/questions/71573019/
cant-compile-to-wasm-on-linux

 Install

You need CLANG and CLANG's linker (LLD). Tested on versions 13 and
14.

Debian nightly pacakges: https://apt.llvm.org/

On Windows, you may use Chocolatey package manager to install CLANG:
https://chocolatey.org/

 Summary

 Why WASM?

Writing web app in any language which is not JavaScript is just pure
joy.

 Try it

The color change and the blur effect is a WASM module, written in C:

https://linkbroker.hu/stuff/howto-wasm-minimal/

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How to create minimal wasm module

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MIT License

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Languages

  * C++ 43.4%
  * JavaScript 39.0%
  * HTML 9.2%
  * Shell 4.7%
  * Batchfile 3.7%

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