wiki/content/20201012094248-javascript_sets.md

---
date: 2020-10-12
id: ee9a4791-e3e8-4437-98fa-6c2d34be1a8e
title: JavaScript Sets
---

# Introduction

A
[Set](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Set)
is a collection of unique elements.

# Example

``` javascript
const arr = [5, 1, 5, 7, 7, 5];
const unique = [...new Set(arr)]; // [ 5, 1, 7 ]
```