rustExample of borrow_mut in Rust

Borrow_mut is a Rust language feature that allows a mutable reference to be taken from a data structure. This allows the data structure to be modified without taking ownership of it.

Example code

let mut x = vec![1, 2, 3];
let y = &mut x;
y.push(4);

Output example

[1, 2, 3, 4]

Code explanation

• let mut x = vec![1, 2, 3];: This line creates a mutable vector x with the values 1, 2, and 3.
• let y = &mut x;: This line creates a mutable reference y to the vector x.
• y.push(4);: This line adds the value 4 to the vector x using the mutable reference y.

Helpful links

• Rust Reference - Borrow_mut

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