rustHow to create a new Rust HashMap with a specific type?

Creating a new Rust HashMap with a specific type is easy. You can use the HashMap::new method to create a new empty HashMap. The type of the HashMap is specified by the type of the key and value.

Example code

use std::collections::HashMap;

let mut map: HashMap<String, i32> = HashMap::new();

This example creates a new empty HashMap with String as the key type and i32 as the value type.

Code explanation

• use std::collections::HashMap;: imports the HashMap type from the std::collections module.
• let mut map: HashMap<String, i32> = HashMap::new();: creates a new empty HashMap with String as the key type and i32 as the value type.

Helpful links

• Rust HashMap Documentation

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