17 lines
356 B
Markdown
17 lines
356 B
Markdown
---
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title: uniqueElements
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tags: array,beginner
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---
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Returns all unique values in an array.
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Create a `Set` from the given array to discard duplicated values, then use the spread operator (`...`) to convert it back to an array.
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```js
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const uniqueElements = arr => [...new Set(arr)];
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```
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```js
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uniqueElements([1, 2, 2, 3, 4, 4, 5]); // [1, 2, 3, 4, 5]
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```
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