Learn EMSCRIPTEN with Real Code Examples

Frontend: Clang/LLVM compiles C/C++ to intermediate LLVM IR

Backend: Emscripten converts LLVM IR to WebAssembly or asm.js

Runtime: JavaScript glue code handles browser integration

Virtual filesystem supports in-browser file operations

APIs exposed for WebGL, WebAudio, WebSockets, and other browser features

C/C++ source code -> LLVM IR -> Emscripten -> Wasm/asm.js

JavaScript glue code enables integration with web environment

WebAssembly executes in browser sandbox

Interacts with web APIs for graphics, audio, networking

Outputs rendered content or computation results to browser

Compile-time conversion of native code to Wasm

Browser-side runtime execution

Hybrid C/C++ and JavaScript application model

Virtual file system for in-browser operations

Optional multithreading and SIMD optimization

Browser games using SDL/WebGL compiled to Wasm

Scientific simulation tools running in browser

Multimedia apps with real-time audio/video processing

Cryptography and compression in web apps

Legacy C/C++ apps ported to web platforms

Bring native code to the web

Leverage LLVM toolchain for cross-compilation

Use WebAssembly for high performance

Provide seamless JS integration via embind

Emulate POSIX-style behavior for existing C/C++ code

Browser-side execution scales per client

WebAssembly modules are loaded per session

Offload heavy computations to WebWorkers if needed

Use IndexedDB for persistent storage across sessions

Bundle and compress Wasm modules for faster delivery

Port C/C++ applications using Emscripten APIs

Replace OS-dependent functionality with browser-compatible APIs

Compile using emcc to Wasm or asm.js

Integrate JavaScript glue for interaction

Test in multiple browsers for compatibility and performance