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How can I keep the original ordering of a Map?

#maps#elixir-map
tadeifelipe

tadeifelipe

How can I keep the original ordering of a Map?

Hey everyone!

How can I keep the original ordering of a Map?
I’ve created one and notice that after the creation, the order of elements altered in alfabetically. How can I keep them?

6 comments
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sabiwara

sabiwara

Elixir Core Team

If you want to preserve the insertion order, you can check :aja’s OrdMap, which does exactly that, as well as offering good performance and implementing the Jason.Encoder protocol amongst other things:

https://hexdocs.pm/aja/Aja.OrdMap.html

(disclaimer: I’m the author :slight_smile: )

4
Post #6
kokolegorille

kokolegorille

This post might help…

2
Post #3
hauleth

hauleth

You need to create your own struct and implement that on your own.

1
Post #2
dimitarvp

dimitarvp

Then don’t use a map but a keyword list instead. Elixir’s stdlib supports it well, check the List module in the docs.

1
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