Memory in WebAssembly is one of the topics that creates confusion for newcomers, particularly for those with experience in languages with memory management features like garbage collection, such as JavaScript, Go, or Java. In this article we explore using memory in WebAssembly in various scenarios - passing JavaScript arrays to Rust and AssemblyScript modules, checking for some basic memory leaks using Valgrind, or exchanging strings between runtimes and modules using Wasmtime.| radu-matei.com
In this article, we experiment with building a Rust program that performs image classification using the MobileNet V2 TensorFlow model, compile it to WebAssembly, and instantiate the module using two WebAssembly runtimes that use the WebAssembly System Interface (WASI), the native NodeJS WASI runtime, and Wasmtime. A special interest is given to writing model and image data into the module’s linear memory, with implementations in both JavaScript and Rust. Finally, a simple prediction API is...| radu-matei.com