rustUsing box hashmap in Rust

Box hashmap is a type of hashmap in Rust that allows for the storage of values on the heap. It is similar to a regular hashmap, but it is more efficient in terms of memory usage.

Example code:

use std::collections::HashMap;

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

Output:

()

Code parts with detailed explanation:

• use std::collections::HashMap;: This imports the HashMap type from the standard library.
• let mut map = Box::new(HashMap::new());: This creates a new Box hashmap and assigns it to the variable map.
• map.insert("key", "value");: This inserts a key-value pair into the hashmap.

Helpful links

• Rust Documentation - Box
• Rust Documentation - HashMap

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