Rust’s ownership rules
1. Every value in Rust must have a single owner
2. A value can have any number of immutable references
3. You can only create a single mutable reference to a value
4. If there’s a mutable reference to a value, you cannot have an immutable reference to it
![fn main() {
let x = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10];
let y: Vec<i32> = x.into_iter().filter(|a| a % 2 == 0).collect();
println!("{:?}", y); // [2, 4, 6, 8, 10]
}](https://pbs.twimg.com/media/FmDZPlnWYA4iD1f?format=webp&name=medium)
