Function _firstOrDefault

_firstOrDefault<T>(src: Iterable<T>, pred?: IndexedPredicate<T>): T | undefined
Returns the first element in the source iterable that satisfies the predicate or undefined if none do.
Type Parameters
- T
  Element type produced by the source iterable.
Parameters
- src: Iterable<T>
  Source iterable examined until a matching element is found.
- pred: IndexedPredicate<T> = ...
  Predicate receiving the current value and index; defaults to a function that accepts every value.
Returns T | undefined
The first matching element, or undefined when the predicate never returns true.
Example
```
const value = _firstOrDefault([10, 20, 30]);
console.log(value); // 10
```
or using the curried version:
```
const value = pipeInto(
  [1, 2, 3],
  firstOrDefault((n, i) => n > 5 || i > 5)
);
console.log(value); // undefined
```
- Defined in src/transformers/firstOrDefault.ts:27