Making a variable mutable is simple with the mut keyword. Mutability means that the value of a variable can be overwritten. See the example below:
fn main() {
// the `mut` keyword means that 'x' is now able to be overwritten
let mut x = 1;
println!("The value of x is {x}"); // prints 1 as the value of x
x = 2;
println!("The value of x is {x}"); // prints 2 as the value of x
}
OCTOBER STUDIOS 