WebAssembly: Of Portability, and Performance
summary
WebAssembly runs by compiling existing C/C++ into a dense binary that loads faster and runs in a sandbox so Node.js 8 and Chrome Firefox Safari Edge support it by default and embeddings exist. Practical demo compiles the single‑header CImg toolkit with Emscripten and embind to a standalone .wasm plus glue JS, serves it with a simple Python HTTP server and draws five triangles per tile. Porting tradeoffs: not faster than native but portable; threads via shared memory, SIMD, exceptions and GC are in flight.
AI-written summary · about
chapters (6)
- 0:00Introduction to WebAssembly
- 3:58Design goals and portability
- 10:02Practical example with CIMG
- 18:58WebAssembly in V8 engine
- 22:21Performance caveats and future
- 27:23Q&A and resources








