Hacker News Reader

Hacker News

Comment by willglynn | Hacker News Reader

Parent Full thread

willglynn

Rust has a pretty great WebAssembly story:

https://rustwasm.github.io/book/

Learning Rust at the same time as Rust+WebAssembly might be a bit of a reach, though.

View on HN

Is there documentation on Rust+WebAssembly that is presented more like a conventional book or tutorial?

I don't do well with example-driven documentation like these. Resources like the original rust book are excellent though.

Is there really that much to learn?

You can just target WebAssembly like this:

cargo +nightly build --target wasm32-unknown-unknown

Okay, then how do I run that? How do I interface with the JS/DOM world? (Those are rhetorical questions. I just mean to show that there is, in fact, more to learn.)

Try (after installing of rust and cargo via rustup):

  # Install support for "wasm" command for cargo:
  cargo install cargo-wasm
  # Install wasm target and wasm-gc tool:
  cargo wasm setup
  # Create new wasm project:
  cargo wasm new hello_world

and then in hello_world directory:

  # Build and run wasm project:
  cargo wasm run

I'm going to have to be that guy and say, did you try googling it?

Here's one guide: https://hackernoon.com/compiling-rust-to-webassembly-guide-4...

I was under the impression that the wasm emscripten target was deprecated in favor of the rust-specific wasm target. Am I wrong?

You're not. Well, it's not officially deprecated, but it pretty much is, yeah.

https://rustwasm.github.io/book/

Reply on news.ycombinator.com