Specs

classes([class_type()], list()) :: String.t()

Helpers that creates a class using by a given set of predicates.

It supports the following format:

• {function, true_class, false_class}: if the function is true, the true_class is prepended, otherwise the false_class.
• {function, class}: if the function is true, the class is prepended.
• function: returns the result of the given function
• class: always present

Examples

iex> conditions = [
  {fn user -> user.age > 18 end, "is-adult"},
  {fn user -> user.state == true end, "is-active", "is-inactive"},
  fn user -> if user.gender == :female, do: "is-female", else: "is-male" end,
  "user"
]
iex> classes(conditions, [%{age: 20, active: true, gender: :female}])
"user is-female is-active is-adult"
iex> classes(conditions, [%{age: 10, active: true, gender: :male}])
"user is-male is-active"
iex> classes(conditions, [%{age: 10, active: false, gender: :female}])
"user is-female is_inactive"