rustHow to create a Rust HashMap?

Creating a Rust HashMap is easy and straightforward.

use std::collections::HashMap;

let mut map = HashMap::new();
map.insert("key1", "value1");
map.insert("key2", "value2");

The output of the above code will be:

()

Code explanation

1. use std::collections::HashMap; - This imports the HashMap module from the standard library.
2. let mut map = HashMap::new(); - This creates a new, empty HashMap.
3. map.insert("key1", "value1"); - This inserts a key-value pair into the HashMap.
4. map.insert("key2", "value2"); - This inserts another key-value pair into the HashMap.

Helpful links

• Rust HashMap Documentation

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