Roots not ready on quadratic equation example about wasm-learning HOT 2 OPEN

This indicates a runtime error in your Rust code. Can you post a gist of your lib.rs file?

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Thanks for the reply :)

I just noticed that I'd somehow missed the first two lines, so mine was

#[wasm_bindgen] pub fn solve(params: &str) -> String { let ps: (f32, f32, f32) = serde_json::from_str(&params).unwrap(); let discriminant: f32 = (ps.1 * ps.1) - (4. * ps.0 * ps.2); let mut solution: (f32, f32) = (0., 0.); if discriminant >= 0. { solution.0 = (((-1.) * ps.1) + discriminant.sqrt()) / (2. * ps.0); solution.1 = (((-1.) * ps.1) - discriminant.sqrt()) / (2. * ps.0); return serde_json::to_string(&solution).unwrap(); } else { return String::from("not real numbers"); } }

but I've just changed it to include the missing lines. Using VS on Windows 10 or Ubuntu 20.04 still gives the error above.

I'm pretty much brand new to this, so there's a good chance that I've got something basic wrong. At the beginning of the Getting started with Rust functions in Node.js article I used the git clone https://github.com/second-state/ssvm-nodejs-starter command to get the files, so tried the same with the quadratic equation example, but it wouldn't work. Googling told me to go to the root, so wasm-learning, and use git clone there. I've then gone to the nodejs/quadratic/ folder and worked from there, including telling VS to open it in the terminal. As far as I can tell, everything has run from that folder.

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