Question

How to remove a value from HashSet in Rust

Answer 1

use std::collections::HashSet;
  
fn main() {
    let mut hs = HashSet::new();
  
    hs.insert("Rust");
    hs.insert("C");
    hs.insert("C");
    hs.insert("C++");
    hs.insert("Python");
    hs.insert("Java");
  
    println!("{:?}", hs);
    
    hs.remove(&"Java");
    
    println!("{:?}", hs);
}




/*
run:

{"Java", "Rust", "C", "C++", "Python"}
{"Rust", "C", "C++", "Python"}

*/

 

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