get length of vector rust

To get the length of a vector in Rust, you can use the len() method. Here's an example:

fn main() {
    let my_vector = vec![1, 2, 3, 4, 5];
    let length = my_vector.len();

    println!("Length of the vector: {}", length);
}

In this example, we create a vector called my_vector with some elements. We then use the len() method to get the length of the vector and store it in the variable length. Finally, we print the length of the vector using println!().