How do I convert an float to an integer in Elixir

Question

Given a float, say (2.0), I want to convert it to an Integer type. It looks like Integer.parse only works for strings as far as I can tell.

Integer.parse(2.0)
(FunctionClauseError) no function clause matching in Integer.count_digits/2

Answer 1

Use trunc(2.0) or round(2.0). Those are auto-imported since they are part of Kernel and they are also allowed in guard clauses.