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The Ultimate Guide to Rust Programming

Arrays and Slices

Explore how to iterate over arrays and slices in Rust by learning two distinct approaches: borrowing slices with & to access iterators and using the .iter() method. This lesson helps you understand why direct iteration over arrays is restricted and how to effectively work around it.

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For some complicated reasons that I don’t personally understand, you can’t directly iterate over an array. In other words, this code doesn’t compile:

Rust 1.40.0
fn main() {
    let fibs = [1, 1, 2, 3, 5, 8, 13];
    for x in fibs {
        println!("{}", x);
    }
}

Fortunately, we have two ...