JSC.js is a JavaScript engine which can run on top of you browser's JavaScript engine. It's based on the JavaScript engine (JavaScriptCore) of WebKit and compiled to wasm with emscripten. Therefore, if you're using Safari, you are literally running its JavaScript engine on top of itself.
The size of JSC.wasm is around 4MB (compressed js and mem file).
Demo: Link
- install emscripten
- install python, ruby, ninja, etc.
sudo apt install g++-multilib libc++-9-dev libc++abi-9-dev
- run
build/gn/download.bat
to download latestgn.exe
. - run
Source/JavaScriptCore/DerivedSources/gen.bat
to generate derived sources.
> gn gen out --args="target_os=\"wasm\""
> ninja -C out
> gn gen out --args="target_os=\"win\""
> ninja -C out