[Home](./index.md) > [@apextoaster/js-utils](./js-utils.md) > [ensureArray](./js-utils.ensurearray.md)
## ensureArray() function
Signature:
```typescript
export declare function ensureArray(val: Optional>): Array;
```
## Parameters
| Parameter | Type | Description |
| --- | --- | --- |
| val | Optional<Array<T>>
| |
Returns:
`Array`