How to import a WASM module in WASM ( Rust ) and pass a String parameter
When writing WebAssembly (WASM) in Rust, you might want to import functionality from one WASM module into another. This can be achieved by defining an external module and binding it to your Rust code. This also applies to passing parameters. Here is a basic guide on how to write WebAssembly code in Rust, demonstrating how to import external modules and pass parameters.Step 1: Create a Rust LibraryFirst, create a new Rust library to compile to WebAssembly.Step 2: Add DependencyIn your file, add the dependency, which is a library that enables interaction with JavaScript.Step 3: Write Rust CodeIn your file, use to export functions and import external functions.Step 4: Compile to WebAssemblyUse to compile your Rust library to WebAssembly.Step 5: JavaScriptIn JavaScript, you need to load the compiled WASM module and declare the imported functions.In this example, should be replaced with the actual path to your external module JS file. Ensure that the string parameters used in the function match the type in the Rust function.Ensure that you have installed the tool and the library, and that your Rust project structure is correct. Once you compile and run your WASM code, the function will be called by JavaScript and pass the string parameter to the internal Rust function. Then, the Rust function will pass this string parameter to the imported function.Note that these code snippets are simplified examples and may need to be adjusted based on your project requirements, especially when dealing with different environments (such as Node.js or different web browsers) for loading and running your WebAssembly code.
