How to Remove an Element from a Set in JavaScript ?

To remove an element from a Set in JavaScript, you can use the delete() method. The delete() method removes the specified element from the Set if it exists and returns a boolean indicating whether the element was successfully deleted.

Example: Here, the delete(3) method call removes the element 3 from the Set. The second console.log shows the updated Set without the deleted element.

Javascript

let mySet = new Set([1, 2, 3, 4, 5]);

console.log(mySet); // Output: Set { 1, 2, 3, 4, 5 }

// Remove element 3 from the Set
mySet.delete(3);

console.log(mySet); // Output: Set { 1, 2, 4, 5 }

Output

Set(5) { 1, 2, 3, 4, 5 }
Set(4) { 1, 2, 4, 5 }

Note: It’s important to note that if the element is not present in the Set, the delete() method will return false.