Treat vectors like associative arrays.
use assoc::AssocExt;
let mut map = vec![("a", 1), ("b", 2)];
map.entry("c").or_insert(3);
assert_eq!(map.get(&"c"), Some(&3));
assert_eq!(map.entry("c").or_insert(4), &3);Treat vectors like associative arrays.
use assoc::AssocExt;
let mut map = vec![("a", 1), ("b", 2)];
map.entry("c").or_insert(3);
assert_eq!(map.get(&"c"), Some(&3));
assert_eq!(map.entry("c").or_insert(4), &3);