es-toolkit/docs/reference/array/compact.md
2024-06-28 23:23:59 +09:00

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# compact
Removes falsey values (`false`, `null`, `0`, `''`, `undefined`, `NaN`) from an array.
## Signature
```typescript
function compact<T>(arr: T[]): Array<Exclude<T, false | null | 0 | '' | undefined>>;
```
### Parameters
- `arr` (`T[]`): The input array to remove falsey values.
### Returns
(`Array<Exclude<T, false | null | 0 | '' | undefined>>`) A new array with all falsey values removed.
## Examples
```typescript
compact([0, 1, false, 2, '', 3, null, undefined, 4, NaN, 5]);
// Returns: [1, 2, 3, 4, 5]
```