Understand Rust Code with AI

01 Read a small example

Keep the positive numbers.

Start with four numbers: −3, 0, 2 and 5. Keep each number greater than zero. The result contains 2 and 5, in the same order.

An authored Rust teaching snippet. Paste it into the workspace and select Rust to explore your own explanation.

positive.rs

let numbers = vec![-3, 0, 2, 5];
let positive: Vec<i32> = numbers.into_iter()
    .filter(|number| *number > 0)
    .collect();