21 lines
462 B
Markdown
21 lines
462 B
Markdown
---
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title: Cast to array
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tags: type,array
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expertise: beginner
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firstSeen: 2018-01-23T20:54:12+02:00
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lastUpdated: 2020-09-15T16:28:04+03:00
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---
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Casts the provided value as an array if it's not one.
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- Use `Array.prototype.isArray()` to determine if `val` is an array and return it as-is or encapsulated in an array accordingly.
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```js
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const castArray = val => (Array.isArray(val) ? val : [val]);
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```
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```js
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castArray('foo'); // ['foo']
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castArray([1]); // [1]
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```
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