Function firstNotEmpty

firstNotEmpty(array?): any
Returns the first not empty element in the given array, or null if all elements are nil
Parameters
- Optionalarray: null | any[] | readonly any[]
  the array to check
Returns any
the first not empty element in the given array, or null if all elements are nil
Example
```
firstNotEmpty([null, undefined, {}, 'foo', 'bar']);    // 'foo'
```