first Is Instance
Finds the first T element of this array that satisfies the check, throwing an error if nothing was found.
Finds the first T element of this iterator that satisfies the check, throwing an error if nothing was found.
Finds the first T element of this iterable that satisfies the check, throwing an error if nothing was found.
Finds the first T element of this sequence that satisfies the check, throwing an error if nothing was found.