rustHow to iterate and modify a vector in Rust

Iterating and modifying a vector in Rust is a simple process. To do so, you can use the for loop. The following example code block shows how to iterate and modify a vector:

let mut v = vec![1, 2, 3];

for i in &mut v {
    *i += 1;
}

println!("{:?}", v);

The output of the example code is:

[2, 3, 4]

The code consists of the following parts:

1. let mut v = vec![1, 2, 3]; - This line creates a mutable vector v with the elements 1, 2 and 3.
2. for i in &mut v { - This line starts a for loop that iterates over the vector v.
3. *i += 1; - This line modifies the current element of the vector by incrementing it by 1.
4. println!("{:?}", v); - This line prints the modified vector.

Helpful links

• Rust Book - Vectors
• Rust Book - Loops

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