rustHow to iterate over a Rust slice with an index?

Iterating over a Rust slice with an index can be done using a for loop. The loop will iterate over each element in the slice and provide the index of the element as well.

let my_slice = [1, 2, 3, 4];

for (index, element) in my_slice.iter().enumerate() {
    println!("Element at index {} is {}", index, element);
}

Output example

Element at index 0 is 1
Element at index 1 is 2
Element at index 2 is 3
Element at index 3 is 4

Code explanation

• let my_slice = [1, 2, 3, 4];: This declares a slice containing the elements 1, 2, 3, and 4.
• for (index, element) in my_slice.iter().enumerate(): This is the for loop which will iterate over each element in the slice. The enumerate() method will provide the index of the element as well.
• println!("Element at index {} is {}", index, element);: This prints out the index and element of the current iteration.

Helpful links

• Rust Documentation - Iterators

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