kai_feldhoff
Enum.map converts results with 2-item-tuples where the first item is an atom to a keyword-list. This has it’s use cases, but when you want to keep the tuples, what is the idiomatic way to achieve this?
For example:
[1, 2, 3] |> Enum.map(& if &1 < 2, do: {:ok, "< 2"}, else: {:errror, "not < 2"})
returns
ok: "< 2",
errror: "not < 2",
errror: "not < 2"
]
But I’d like to get this:
{:ok, "< 2"},
{:errror, "not < 2"},
{:errror, "not < 2"}
]
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lubien
They are the same thing!
sodapopcan
If you scroll a little bit up from the permalink shared by @lubien you will see the definition of a keyword list:
To hit it home: a keyword list is literally just a list like any other, the only thing “special” about is its very specific contents.
dimitarvp
They are exactly the same, the former is just syntactic sugar.
Also you might want to correct “errror” (3 “r”-s) to “error” (2 “r”-s).
kai_feldhoff
Oh yes, the docs are pretty clear at that.
Thnak you all for the quick repies!