Web assembly: a brief overview
- 2. Problem Sell feature - Fast code execution ● Faster than JS ● Zero configuration ● Safe ● Cross platform ● Easy to use
- 3. Before WASM Winners ● JavaScript ● V8 ● HTML5 Losers ● ActiveX ● Flash ● Silverlight ● asm.js ● Native client ● Java applets
- 4. About Asm.js Wikipedia - asm.js is a subset of JavaScript designed to allow computer software written in languages such as C to be run as web applications. C/C++ => LLVM => Emscripten => asm.js
- 5. What is WebAssembly? WebAssembly is a binary instruction format for a stack-based virtual machine. ● Binary ● Virtual machine ● Stack-based (no heap)
- 6. WebAssembly High-Level Goals ● Define a portable, size- and load-time-efficient binary format ● threads, zero cost exceptions ● execute in the same semantic universe as JavaScript ● allow synchronous calls to and from JavaScript ● define a human-editable text format to support View Source functionality
- 7. Wasm Fiddle
- 8. WASM and Javascript ● Only JS loads and executes WASM ● WASM and JS share the same sandbox
- 10. Supported by languages ● C/C++ - emscripten ● Rust ● Java - TeaVM, JWebAssemly, Bytecoder ● Kotlin - Kotlin Native LLVM backend ● Go ● .Net, C#, F# - Blazor https://github.com/appcypher/awesome-wasm-langs
- 11. WASM frameworks ● Emscripten, Rustwasm - low level, not convenient to work with html and css. Good for heavy work. Not UI. ● Blazor - inspired by VueJS. Most complete solution for typical web applications.