Write while loop equivalent in elixir

[silverdr]

@sribe

In actual apps, you want to iterate over some collection of data items. The for or while loop is how you do that in an imperative language

In real life I can use while(some_condition) for repeating an action unknown number of times. Like:

do {
  name = generate_new_name();
} while(name.exists?)

So I can’t really do any sort of enumeration here. Should I do the recursion in such case? And if I wanted to limit the depth?