Elixir Language Getting started with Elixir Language Hello World
Example
For installation instructions on elixir check here, it describes instructions related to different platforms.
Elixir is a programming language that is created using erlang, and uses erlang's BEAM runtime (like JVM for java).
We can use elixir in two modes: interactive shell iex or directly running using
elixir command.
Place the following in a file named hello.exs:
IO.puts "Hello world!"
From the command line, type the following command to execute the Elixir source file:
$ elixir hello.exs
This should output:
Hello world!
This is known as the scripted mode of Elixir. In fact, Elixir programs can also be compiled (and generally, they are) into bytecode for the BEAM virtual machine.
You can also use iex for interactive elixir shell (recommended), run the command
you will get a prompt like this:
Interactive Elixir (1.3.4) - press Ctrl+C to exit (type h() ENTER for help)
iex(1)>
Here you can try your elixir hello world examples:
iex(1)> IO.puts "hello, world"
hello, world
:ok
iex(2)>
You can also compile and run your modules through iex. For example, if you have a helloworld.ex that contains:
defmodule Hello do
def sample do
IO.puts "Hello World!"
end
end
Through iex, do:
iex(1)> c("helloworld.ex")
[Hello]
iex(2)> Hello.sample
Hello World!
