Erlang Online IDE & Code Editor for Technical Interviews

Running Erlang/OTP 24 - IntelliSense is not available

Experience our Erlang IDE yourself

See just how easy and intuitive CoderPad Interview is to use below.

Guidelines to use Erlang in this online IDE

You should define the module as “solution” and define and export a method named “start” on it, like so:


start() ->
  io:format("Hello, World").
Code language: Erlang (erlang)

If you’d like to write some tests using eunit, you can do so as long as you remember to include_lib and invoke your module’s test function from your start function:

-include_lib("eunit/include/eunit.hrl"). % attach eunit handlers to this module

f(0) -> 1;
f(1) -> 1;
f(N) when N > 1 -> f(N-1) + f(N-2).

f_test() ->
  1 = f(0),
  1 = f(1),
  2 = f(2),
  3 = f(3),
  6 = f(4). % this should fail

start() ->
  test(). % remember to call test from start, or we won't know that we need to run tests!Code language: Erlang (erlang)