Enum.each_with_index

[Janis Miezitis]

Hey guys,

Right now in Elixir there is Enum.with_index that returns tuple that has index and value of the element. You have to have two steps to add indexes to collection and iterate over that collection. Would that be useful work on and submit pull request for Enum.each_with_index? 

[Eric Meadows-Jönsson]

You can use lazy streams to do it one step:

coll
|> Stream.with_index
|> Enum.each(...)

​

On Sat, Aug 16, 2014 at 2:42 PM, Janis Miezitis <jan...@gmail.com> wrote:

Hey guys,

Right now in Elixir there is Enum.with_index that returns tuple that has index and value of the element. You have to have two steps to add indexes to collection and iterate over that collection. Would that be useful work on and submit pull request for Enum.each_with_index? 

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Eric Meadows-Jönsson

[Tallak Tveide]

I find each is less used in elixir compard to eg. Ruby, dt immutability. So map and reduce with index would probably be more useful. Even so, i like just chaining them with the pipe operator...

[Tallak Tveide]

[Tallak Tveide]

[Janis Miezitis]

Thanks guys, that makes sens. I guess I need to switch my thinking a bit :)