Ownership

NOTE: This is my understanding of how ownership based on The Rust Book. I need to have it vetted by someone who knows more about Rust.

A fundamental feature of Rust is that every value has an "owner". When we bind a value to a variable like this:

let alfa = String::from("apple");

that variable becomes the owner of the value. In the case that means alfa now owns the String of "apple". You can think of an "owner" like a wrapper around the value.

As long as a varible is owner of a value it can use it. For example, if we call this after setting alfa like we did above:

println!("alfa is {alfa}");

it will output:

alfa is apple

becuase alfa owns the String made from "apple".