rustHow to slice a hashmap in Rust?

Slicing a hashmap in Rust is done using the .iter() method. This method returns an iterator over the key-value pairs of the hashmap. The iterator can then be used to access the elements of the hashmap.

Example code

let mut my_hashmap = HashMap::new();
my_hashmap.insert("a", 1);
my_hashmap.insert("b", 2);
my_hashmap.insert("c", 3);

for (key, value) in my_hashmap.iter() {
    println!("{}: {}", key, value);
}

Output example

a: 1
b: 2
c: 3

Code explanation

• let mut my_hashmap = HashMap::new();: This line creates a new empty hashmap.
• my_hashmap.insert("a", 1);: This line inserts a key-value pair into the hashmap.
• for (key, value) in my_hashmap.iter() {: This line creates an iterator over the key-value pairs of the hashmap.
• println!("{}: {}", key, value);: This line prints out the key-value pairs of the hashmap.

Helpful links

• Rust HashMap Documentation

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