I like that idea a lot Bruce. Let’s you do something like:

maps |> Enum.with_index(&Map.put(&1, :index, &2))

On Tue, Dec 8, 2020 at 4:50 PM Bruce Tate <[email protected]> wrote:

> Maybe a transform function on with_index?
>
> Enum.with_index([:a, :b, :c], &{&2, &1})
>
> -bt
>
> On Tue, Dec 8, 2020 at 3:05 PM José Valim <[email protected]> wrote:
>
>> I would like to propose an Enum.index/2 function. It behaves like
>> with_index/2 but the index is the first argument:
>>
>>     iex> Enum.index([:a, :b, :c])
>>     [{0, :a}, {1, :b}, {2, :c}]
>>
>> I am hoping it reads "index" this tuple (hence the index as the first
>> element. While with_index means attach an index information to each element
>> (hence the second element). Is this sound?
>>
>> Thank you,
>>
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>
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> Bruce Tate
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