Programmer Passport: Elixir

IEx: Interactive Elixir

Let’s fire up an interactive console from the /hello directory:

iex -S mix

IEx is interactive Elixir, and the -S flag starts Elixir with everything our project needs so we can call functions within our project. We can see the documentation for our function and call it:

You can also get the Hello module information with h Hello as well:

iex(1)> h Hello

                            Hello

Documentation for Hello.
iex(2)> Hello.hello
Hello

We get help for the module, and then we call the Hello.hello function. To execute any function, you’ll chase the module name with a period and then the function name.

Let’s look into some more obscure Mix features. ...