How to Use zip and enumerate in Rust

Use zip to pair two iterators and enumerate to add an index to a single iterator, then chain them to process items with their positions.

let words = vec!["hello", "world"];
for (index, word) in words.iter().enumerate().zip(words.iter()) {
    println!("Index {}: {}", index, word);
}

For a more common pattern where you need the index and the item from one collection:

let words = vec!["hello", "world"];
for (index, &word) in words.iter().enumerate() {
    println!("Index {}: {}", index, word);
}

Zip combines two lists into pairs, while enumerate adds a counter to a list. You use them together when you need to know both the position and the value of items in a list. It's like numbering lines in a document while also comparing them to another document line-by-line.