Hashmap

HashMap<K, V> stores key-value pairs using hashing for fast lookups, insertions, and removals. Keys must be unique; duplicate keys replace old values. Rust uses cryptographically strong hashing for security. Items are unordered. Example: HashMap::new() or HashMap::from([("key", "value")]).

Visit the following resources to learn more:

• @official@HashMap in std::collections
• @official@Storing Keys With Associated Values In Hash Maps
• @article@Hash Table
• @video@HashMaps: key-value stores in Rust