How to Remove Specific Item from a Set in Rust


How to Remove Specific Item from a Set in Rust ?

Answer

To remove a specific item from a set in Rust, you can use the remove method to delete the item from the set.



✐ Examples

1 Removing Item from Integer Set

In this example,

  1. We create a set named number_set using the HashSet type from the Rust Standard Library, which contains integer values 1, 2, 3, 4, and 5.
  2. We use the remove method of number_set to remove the item 3 from the set.
  3. Finally, we print the modified set number_set to see the removed item.

Rust Program

use std::collections::HashSet;

fn main() {
    let mut number_set: HashSet<i32> = [1, 2, 3, 4, 5].iter().cloned().collect();
    number_set.remove(&3);

    println!("{:?}", number_set);
}

Output

{1, 2, 4, 5}

2 Removing Item from String Set

In this example,

  1. We create a set named string_set using the HashSet type from the Rust Standard Library, which contains string values "apple", "banana", "cherry", "date", and "grape".
  2. We use the remove method of string_set to remove the item "cherry" from the set.
  3. Finally, we print the modified set string_set to see the removed item.

Rust Program

use std::collections::HashSet;

fn main() {
    let mut string_set: HashSet<&str> = ["apple", "banana", "cherry", "date", "grape"].iter().cloned().collect();
    string_set.remove("cherry");

    println!("{:?}", string_set);
}

Output

{"apple", "banana", "date", "grape"}

Summary

In this tutorial, we learned How to Remove Specific Item from a Set in Rust language with well detailed examples.




More Rust Sets Tutorials

  1. How to create an Empty Set in Rust ?
  2. How to Initialize a Set in Rust ?
  3. How to Get Length of a Set in Rust ?
  4. How to create a Set of size N in Rust ?
  5. How to create a Set of Numbers from 1 to N in Rust ?
  6. How to create a Set of integers in Rust ?
  7. How to create a Set of Strings in Rust ?
  8. How to Access Items in a Set in Rust ?
  9. How to get a Random Item in a Set in Rust ?
  10. How to Iterate Over a Set in Rust ?
  11. How to check if a Set is Empty in Rust ?
  12. How to check if a Set is Not Empty in Rust ?
  13. How to get Subset from a Set in Rust ?
  14. How to check if a Specific Item is present in the Set in Rust ?
  15. How to check if a Set contains all the items of Another Set in Rust ?
  16. How to Sort Items of a Set in Rust ?
  17. How to Copy a Set in Rust ?
  18. How to add an Item to a Set in Rust ?
  19. How to find Union of Two Sets in Rust ?
  20. How to find Intersection of Two Sets in Rust ?
  21. How to check if Two Sets are Equal in Rust ?
  22. How to Convert a Set of Integers to a Set of Strings in Rust ?
  23. How to Convert a Set of Strings to a Set of Integers in Rust ?
  24. How to Convert a Set of Floats to a Set of Strings in Rust ?
  25. How to Convert a Set of Strings to a Set of Floats in Rust ?
  26. How to Filter Items of a Set based on a Condition in Rust ?
  27. How to Remove Specific Item from a Set in Rust ?
  28. How to Remove Items from Set based on a Condition in Rust ?
  29. How to create a Set of Sets in Rust ?