20 lines
429 B
Markdown
20 lines
429 B
Markdown
---
|
|
title: uniqueElements
|
|
tags: array,beginner
|
|
firstSeen: 2018-01-17T19:02:49+02:00
|
|
lastUpdated: 2020-10-22T20:24:44+03:00
|
|
---
|
|
|
|
Finds all unique values in an array.
|
|
|
|
- Create a `Set` from the given array to discard duplicated values.
|
|
- Use the spread operator (`...`) to convert it back to an array.
|
|
|
|
```js
|
|
const uniqueElements = arr => [...new Set(arr)];
|
|
```
|
|
|
|
```js
|
|
uniqueElements([1, 2, 2, 3, 4, 4, 5]); // [1, 2, 3, 4, 5]
|
|
```
|