Writing Rust Functions for WASM
Develop Rust functions that can be compiled to WASM and exposed to a JavaScript environment for execution.
Unlocking Rust for the Web
Welcome back! In the previous lesson, we set up our Rust environment for WebAssembly. Now, let's dive into writing Rust functions that can be used directly in your web applications.
The goal is to expose Rust's performance and safety to JavaScript, making your web apps even more powerful.
Standard Rust Function Syntax
Before exporting, let's quickly recall how standard Rust functions are defined. They use the fn keyword, followed by the function name, parameters with their types, and an optional return type.
fn: Declares a function.(param: Type): Defines parameters and their types.-> ReturnType: Specifies the function's return type.
All lessons in this course
- Setting up Rust for WebAssembly
- Writing Rust Functions for WASM
- Efficient JS Interop with `wasm-bindgen`
- Error Handling Across the WASM Boundary