optEmptyArray ()

optEmptyArray<T, A>(x): OptSafe<A>
For empty array ([]) returns None, otherwise acts same as opt.
Type Parameters
- T
- A extends readonly T[] | T[]
Parameters
- x: undefined | null | A
Returns OptSafe<A>
Example
```
optEmptyArray(undefined) // None
optEmptyArray([]) // None
optEmptyArray([1]) // Some([1])
```
- Defined in Opt.ts:2211