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?
You need to create your own struct and implement that on your own.
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This post might help…
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Then don’t use a map but a keyword list instead. Elixir’s stdlib supports it well, check the List module in the docs.
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If it’s just for your own pleasure in dev or when debugging, IO.inspect and dbg take options to allow this custom_options: [sort_maps: true]. I feel like pretty: true might do as well.
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 
)
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Nice
