Sets
set is a collection of unique values
Create a new Set
new Set() creates a new empty set
const vowels = new Set();
we can also pass an array of elements as argument to create set with initial values
const vowels = new Set(['a', 'e', 'i', 'o', 'u']);
Add Items to Set
add() method adds a new element to the set
const vowels = new Set();
vowels.add('a');
vowels.add('e');
vowels.add('i');
vowels.add('o');
vowels.add('u');
Delete Items from Set
delete() method removes specified element from the set
const vowels = new Set(['a', 'e', 'i', 'o', 'u']);
vowels.delete('a');
vowels.delete('u');