rustHow to add an entry to a Rust HashMap?

Adding an entry to a Rust HashMap is a simple process. The following example code block shows how to add a key-value pair to a HashMap:

let mut map = HashMap::new();
map.insert("key", "value");

The output of the above code will be an empty HashMap with the key-value pair ("key", "value") added to it.

Code explanation

1. let mut map = HashMap::new(); - This line creates a new empty HashMap.
2. map.insert("key", "value"); - This line adds the key-value pair ("key", "value") to the HashMap.

Helpful links

• Rust HashMap Documentation

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