In the Connecting the dots with WasmFiddle section in Chapter 2, Elements of WebAssembly - Wat, Wasm, and the JavaScript API, we used WasmFiddle to compile a simple C function to Wasm and interact with it using JavaScript. WasmFiddle provides a C/C++ editor, JavaScript editor, Wat/x86 viewer, and JavaScript output panel. You can also interact with the <canvas> if desired. WasmFiddle uses LLVM to generate the Wasm modules, which is why the imports and exports aren't prefixed with a _. You can interact with WasmFiddle at https://wasdk.github.io/WasmFiddle.