#007 Feb 5, 2022

7. iter() vs into_iter()

What is the difference between .iter() and .into_iter()?

iter yields &T

into_iter may yield any of T, &T or &mut T based on context.

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let cars = vec!["Skoda", "Ferrari", "Ford"];

for car in cars.iter() {
    println!("{car}");
}

for car in cars.into_iter() {
    println!("{car}");
}

this works but …

This does not. This results in compile error because cars are moved due to into_iter call.

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let cars = vec!["Skoda", "Ferrari", "Ford"];

for car in cars.into_iter() {
  println!("{car}");
}

for car in cars.iter() {
    println!("{car}");
}

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