granyatee

granyatee

Is it possible that I execute two different commands when I use iex -S mix like you can do un unix bash using the && operator?

Edit:
i.e.: I want to reload a module and test one of the module’s functions something like
r App.CoursesModule && App.CoursesModule.list_courses()

Showing Posts 1 to 6

benwilson512

benwilson512

Author of Craft GraphQL APIs in Elixir with Absinthe

Hey @granyatee are you talking about running multiple mix tasks, or executing multiple commands inside the REPL that iex provides?

eksperimental

eksperimental

if you are talking the mix command, you can achieve that with mix do
for example:
mix do task1, task2, task3

granyatee

granyatee OP

Yeah, multiple commands inside the REPL

benwilson512

benwilson512

Author of Craft GraphQL APIs in Elixir with Absinthe

The REPL executes elixir code, which generally means functions are called one per line. So you’d do:

iex(1)> IO.puts("hello world")
hello world
:ok
iex(2)> IO.puts("wazzup")
wazzup
:ok

You can put multiple commands on the same line and execute them unconditionally by separating them with a ;

iex(3)> IO.puts("hello world"); IO.puts("wazzup")
hello world
wazzup
:ok

You can use && to conditionally call functions as long as prior functions returned something “truthy”

iex(4)> true && IO.puts("wazzup")
wazzup
:ok
iex(5)> false && IO.puts("wazzup")
false

Basically it’s just Elixir code.

benwilson512

benwilson512

Author of Craft GraphQL APIs in Elixir with Absinthe

Just saw your edit, I’m pretty sure you want:

r(App.CoursesModule); App.CoursesModule.list_courses()
granyatee

granyatee OP

Exactly what I needed.

Thanks!

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