Onor.io
Style Question
Just wondering about opinions on how to format code where I’m capturing the result of a few pipelined operations. For example:
v =
op1
|> op2
|> op3
I’m inclined to put the variable the result is going into up on a line by itself so it’s more obvious that the whole thing is getting captured to a variable. But I’d like to hear the opinions of others regarding how I might handle this.
BTW, Could someone create a “coding-style” or “coding-standards” tag and attach it to this message? I don’t have sufficient privileges to create new tags.
Most Liked
Qqwy
I really like the indented style of
first_admins =
users
|> Enum.filter(&User.is_admin?/1)
|> Enum.take(10)
When you don’t indent there, it is less clear that the pipeline will still end up affecting the value to the left of the equals-sign.
Indentation in Elixir usually don’t matters for execution, but it does significantly affect the readability.
sashaafm
I usually do
v = op1
|> op2
|> op3
This leads the code to be condensed, explicit and easy to read. I’ve also seen this way a lot in a lot of Elixir code.
EDIT: I’ve created the tag ‘coding-standards’
Last Post!
riverrun
You can also use the pipe after the case statement.
Here’s an example which includes concatenating the string before sending it to url_decode64 function:
defp urldec64(data) do data <> case rem(byte_size(data), 4) do 2 -> "==" 3 -> "=" _ -> "" end |> url_decode64! end
Now I think that’s really expressive and easy to read. Having said that, I don’t know how many people will agree with me 
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