Question

How to iterate through a Hashmap and print all key value pairs in Rust

Answer 1

use std::collections::HashMap;

fn main() {
    let hm = HashMap::from([
        ("Rust", 3.8),
        ("C++", 2.1),
        ("Java", 8.3),
        ("C", 19.7),
    ]);

    for (key, val) in hm.iter() {
        println!("key: {} - val: {}", key, val);
    }
}


 
 
/*
run:
 
key: Java - val: 8.3
key: C - val: 19.7
key: Rust - val: 3.8
key: C++ - val: 2.1
 
*/

 

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