Hi Bruce Weirdan,
> If it took the default value as well it could return that. While it's useful
> in itself it also would enable you to pass > a marker object and check the
> identity of that to know if no matches have been found:
>
> $none = new stdClass;
> $element = first($collection, fn($elt) => ..., $none);
> if ($element === $none) {
> // nothing found
> }
Oh, right, I'd forgotten about that option - that would work.
There's still the question of what it would do without a predicate.
Making the predicate mandatory in the initial proposal would help avoid the
confusion of whether `first() should behave like array_filter() and any() and
filter for the first truthy value.
Calling it [iterable_]search_callback() or first_matching() or find() might
help distinguish this from the reset()/end()/next()/prev() family of functions
- not happy with any of my naming ideas
Thanks,
- Tyson
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