Function proposal - at/get()

[marcospassos]

We have a use case where we need to get a value by its index.

In that sense, I'd like to suggest introducing a function at/get(iterable $iterable, int $index) : ?int that takes an iterable and returns the item at the specified index.

I'll be glad to provide a PR if welcome.

[marcospassos]

Alternatively, we can introduce a seek(iterable $iterable, int $index) : \Iterator, that takes an iterable and returns an iterator at the specified index. The advantages of this approach are iteration deferring on non-seekable iterators and support for both key and value lookup.

[SamMousa]

Isn't this covered by slice?

slice($iterable, 15, 1)