tio407
1
I got an answer right on one of my exercises just by guessing but want to understand Elixir.
Can you help me understand how this piece of code works
defp converter do
fn
?A -> ?U
?C -> ?G
?T -> ?A
?G -> ?C
end
end
I don’t understand the ?
character and what it is doing here.
It returns the codepoint of the character…
iex> ?a
97
BTW You get the opposite with…
iex> List.to_string [?a]
"a"
4 Likes
Nicd
3
Another way to get the string out of a codepoint, just for reference:
iex(4)> <<?ƒ::utf8>>
"ƒ"
iex(5)> <<?a::utf8>>
"a"
iex(6)> var = 5356
5356
iex(7)> <<var::utf8>>
"ᓬ"
5 Likes
tio407
4
Nice, thank you. First time working with encoding.