Rust

Rust is one of the best languages to use to compile to WASM. With full support for WASM & WASI easy to use, just by specifying a compiler flag. Much of the "crates" ecosystem can be compiled for WASM.

fn main()
{
    println!("Hello World!");
}

Advantages

• Very fast execution.
• Easy to compile to WebAssembly.
• Excellent development tools.
• Large package ecosystem, compatible with WASM.

Drawbacks

• Slow compile time.
• Complex syntax.

Resources

• Homepage
• Documentation
• Rust/WASM Homepage
• MDN Rust to WASM
• Wasmtime Rust documentation
• Rust Playground