Let's start with the most simple method. The basic method for the rest to work is the next() method. This function will return either the next element in the iteration or a None if the iterator has been consumed. This can be used to manually get the next element, or to create a for using a while, for example:
let arr = [10u8, 14, 5, 76, 84];let mut iter = arr.iter();while let Some(elm) = iter.next() { println!("{}", elm);}
That would be the same as this:
let arr = [10u8, 14, 5, 76, 84];for elm in &arr { println!("{}", elm);}
Note the & before the array variable in the for. This is because the basic array type does not implement the Iterator trait, but a reference to the array is a slice, and slices implement the IntoIterator ...
