Question

How to remove a key from HashMap in Rust

Answer 1

use std::collections::HashMap;

fn main() {
    let mut hm = HashMap::from([
        ("Rust", 3.8),
        ("C++", 2.1),
        ("Java", 8.3),
        ("Python", 10.5),
        ("C", 19.7),
    ]);

    hm.remove(&"Python");
     
    println!("{:?}", hm);
}


 
 
/*
run:
 
{"C++": 2.1, "Rust": 3.8, "Java": 8.3, "C": 19.7}
 
*/

 

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