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30-seconds-of-code/javascript/snippets/cast-array.md
2023-05-01 22:35:56 +03:00

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---
title: Cast to array
type: snippet
tags: [type,array]
cover: man-red-sunset
dateModified: 2020-09-15T16:28:04+03:00
---
Casts the provided value as an array if it's not one.
- Use `Array.isArray()` to determine if `val` is an array and return it as-is or encapsulated in an array accordingly.
```js
const castArray = val => (Array.isArray(val) ? val : [val]);
```
```js
castArray('foo'); // ['foo']
castArray([1]); // [1]
```