JavaScript Code

JavaScript new Set()


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(', '));

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