sadcad
How to handle certain output from eval_string
so it’s these two simple lines:
https://hastebin.com/bonopujawa.exs
The first one executes, the second prints to stdout. the output is a and ok.
How can I print a only ?
How can I print ok only ?
In other words, how can I access them separately ?
Most Liked
Ankhers
It does not. Do it in iex and you will see what is happening.
iex(1)> {result, _} = Code.eval_string("IO.puts('a')")
a
{:ok, []}
iex(2)> IO.puts result
ok
:ok
The {:ok, []} from the first function call is the return value of calling Code.eval_string/3. In this case, you are binding the result variable to the atom :ok.
In the second line, you are printing out the atom :ok, which gets printed as ok. And then we see :ok as the return value of the IO.puts/2 call.
Popular in Questions
Other popular topics
Latest on Elixir Forum
Sponsor Spotlight
Producing high quality Elixir screencasts since 2017.
Categories:
Sub Categories:
Forums
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.
Practical resources that improve the lives of professional developers.
Producing high quality Elixir screencasts since 2017.
Enabling companies to succeed by building software people love.
Courses that'll move you from confusion to "Aha, now I get it!"