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