jeroenbourgois
Just a random idea that keeps popping up in my head whenever I am pattern matching on maps. In Javascript es6 notation, there is this concept of a shorthand format to create objects, which I find very concise:
// pre es6
const someObject = {cat: cat, dog: dog, bird: bird}
// es6
const someObject = {cat, dog, bird}
Whenever I am pattern matching in Elixir I wonder how handy this would be to have, say:
def decorate_name(%{id, firstname, lastname}) do
"Hi, #{firstname} #{lastname}"
end
As opposed to
def decorate_name(%{id: id, firstname: firstname, lastname: lastname}) do
"Hi, #{firstname} #{lastname}"
end
Any thoughts?
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wojtekmach
It’s been proposed many times, there’s a couple libraries on Hex for it. This is a good read about it: A story of regret and retiring a library from Hex – Andrea Leopardi.
jeroenbourgois
Sorry, did not know that. Thanks!
rvirding
TANSTAAFL I’m afraid.
Sanjibukai
Thanks for the link.. It was interesting to read.
Sanjibukai
Hello co-creator of Erlang!! It’s a pleasure!
Just googled that acronym.. What are the “cost” you are implying?
NobbZ
I got a result… A German Wikipediapage, which linked to this: No such thing as a free lunch - Wikipedia
rvirding
I think the paper referenced by @wojtekmach gives a good example of a “cost” of a feature.