Struct IterMut 

pub struct IterMut<'a, K, V> { /* private fields */ }

A mutable iterator over the entries of a HashMap in arbitrary order. The iterator element type is (&'a K, &'a mut V).

This struct is created by the iter_mut method on HashMap. See its documentation for more.

Examples

use rune::alloc::HashMap;

let mut map: HashMap<_, _> = [(1, "One".to_owned()), (2, "Two".into())].try_into()?;

let mut iter = map.iter_mut();
iter.next().map(|(_, v)| v.push_str(" Mississippi"));
iter.next().map(|(_, v)| v.push_str(" Mississippi"));

// It is fused iterator
assert_eq!(iter.next(), None);
assert_eq!(iter.next(), None);

assert_eq!(map.get(&1).unwrap(), &"One Mississippi".to_owned());
assert_eq!(map.get(&2).unwrap(), &"Two Mississippi".to_owned());