alt Hacker NewsDidn't know about this. Thanks!
Not related, but I often want to see the next or previous element when I'm iterating. When that happens, I always have to switch to an index-based loop. Is there a function that returns Iter<Item=(T, Option<T>)> where the second element is a lookahead?
You probably just want to use `.peekable()`: https://doc.rust-lang.org/stable/std/iter/trait.Iterator.htm...