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"}
]
Where Next?
Trending in Questions
Other Trending Topics
Latest on Elixir Forum
Sponsor Spotlight
We build reliable cloud platforms for business-critical systems.
Categories:
Sub Categories:
Forums
Popular Tags
- #ecto
- #liveview
- #troubleshooting
- #learning-elixir
- #deployment
- #library
- #erlang
- #testing
- #genserver
- #mix
- #absinthe
- #remote-other
- #otp
- #plug
- #how-to-question
- #macros
- #postgres
- #channels
- #elixirconf
- #exunit
- #discussion
- #code-sync
- #javascript
- #podcasts
- #onsite
- #dialyzer
- #docker
- #authentication
- #umbrella
- #full-time-contract
- #podcasts-by-brainlid
- #ecto-query
- #elixir-ls
- #blog-post
- #phoenix_html
- #iex
- #graphql
- #ai
- #genstage
- #elixirconf-us
- #websockets
- #supervisor
- #advent-of-code
- #distillery
- #processes
- #api
- #forms
- #metaprogramming
- #security
- #hex
Our Sponsors
Build Elixir applications with speed and confidence.
Supporting innovation across the BEAM ecosystem.
We build reliable cloud platforms for business-critical systems.
Catch errors, track performance, monitor hosts and more.
Error tracking, logs, uptime, and Just Enough APM. Built for developers.
Develop your skills with books, videos, and courses.
Bringing learning, work and compliance together since 1987.
Enabling companies to succeed by building software people love.
The team behind Membrane, Popcorn, LiveDebugger. Available for hire.
Courses that'll move you from confusion to "Aha, now I get it!"
First 4 of 4 Posts
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!