sortingelixirphoenix-framework
List of time stamps not sorting properly
I have a list of maps each with a key stating the "inserted_at" time in which the items were inserted in my database. I want to sort this list in descending order to show the most recent items first. I thought I had it but when looking closer for some reason the 2nd and 3rd elements should be swapped as well as the 5th and 6 elements.
Any idea?
Solution
That's because you are comparing NaiveDateTime in Elixir.
You should use compare method instead of ==, >, <.
e.g, Enum.sort(z, &(NaiveDateTime.compare(&1, &2)==:gt )).
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