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Rust
wasm-pack is a Command Line Interface tool written in Rust, and distributed with cargo.
As a result, you'll need Rust and cargo to use wasm-pack.
Installing Rust and Cargo
To install Rust, visit this page, which will
walk you through installing Rust and cargo on your machine using a tool called rustup.
To confirm you have Rust and cargo installed, run:
rustc --version
cargo --version
Rust Versions
wasm-pack depends on a library called wasm-bindgen. wasm-bindgen requires that you use
Rust 1.30.0 or higher. This version is currently only available on the nightly or beta
channels.
To get the correct version of Rust, you'll use rustup a Rust version manager that comes
bundled with Rust. Run this command to install the latest Rust on the beta channel:
rustup install beta
You can set your project directory to always use this version of Rust by running:
rustup override set beta