How to Use Rust WASM in a React/Vue/Svelte Application

Use wasm-pack to build your Rust library into a WebAssembly module, then import it directly into your React, Vue, or Svelte component.

wasm-pack build --target web
cargo install wasm-pack

1. Initialize a new Rust library project with cargo new --lib my-wasm-lib.
2. Add the wasm-bindgen and js-sys dependencies to your Cargo.toml.
3. Write your Rust code and export functions using the #[wasm_bindgen] attribute.
4. Run wasm-pack build --target web in the library directory to generate the .wasm file and JavaScript bindings.
5. Copy the generated pkg folder contents into your frontend project's public or src directory.
6. Import the generated JavaScript module in your React, Vue, or Svelte component and call the exported functions.

Using Rust WASM in a React/Vue/Svelte application compiles your high-performance Rust code into a format that web browsers can run directly. It's like translating a specialized tool into a universal language that your website's JavaScript can understand and use instantly. You use this when you need to run complex calculations or heavy logic in the browser without slowing down your user interface.