new Set()

Set() constructor is used to create a new set in JavaScript.

new Set()
new Set(iterable)

• new is keyword.
• Set is keyword.
• iterable is an iterable object like array.

Examples

1. Create an empty Set vowels.

//create an empty set
const vowels = new Set();
//print set
console.log('Set: ' + [...vowels].join(', '));

2. Create a Set vowels from an array using Set() constructor.

//create set with elements initialised from array
const vowels = new Set(['a', 'e', 'i', 'o', 'u']);
//print set
console.log('Set: ' + [...vowels].join(', '));