Quick Tip - extract_options!

ActiveSupport added a helpful method named 'extract_options!' that

"Extracts options from a set of arguments. Removes and returns the last element in the array if it‘s a hash, otherwise returns a blank hash."

So when we have a method that can accept multiple attributes the last of which could be a hash of options, instead of doing...

def some_method(*attributes)
  configuration = {
    :some_default => 'value'
  }
  configuration.update(attributes.pop) if attributes.last.is_a?(Hash)
  .......
end

We have the more elegant...

def some_method(*attributes)
  configuration = {
    :some_default => 'value'
  }
  configuration.update(attributes.extract_options!)
  .......
end