first Not Null
Returns the first non-null element in this iterable.
Return
The first non-null element
Type Parameters
T
The type of elements in the iterable (nullable)
Throws
if the iterable contains no non-null elements
Returns the first non-null element in this iterable.
The first non-null element
The type of elements in the iterable (nullable)
if the iterable contains no non-null elements