Proposal: Enum.zip/3

[ad...@a-corp.co.uk]

Hello,

Would the community be open to a 3 arity Enum.zip function which takes a function as the last argument?

```elixir

Enum.zip([1,2], [2,3], fn x, y -> x + y end) #=> [3, 5]

```

I presume we could make this more efficient than `Enum.zip |> Enum.map` because we could iterate through the collection once instead of twice.

Best

Adam

[José Valim]

Yes, please. I believe it is conventionally called Enum.zip_with/3, so perhaps we should go with the same name?

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[Andrea Leopardi]

+1 for "zip_with" naming

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[Adam Lancaster]

Nice, I’ll get a PR together when I get a chance.

Cheers

Adam

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[ad...@a-corp.co.uk]

Just to follow up I've raised a PR here: https://github.com/elixir-lang/elixir/pull/10419

Comments welcome!

Adam