Array

Removes and returns the last member of the array if it is a hash. Otherwise, an empty hash is returned This method is useful when writing methods that take an options hash as the last parameter. For example:

def validate_each(*args, &block)
  opts = args.extract_options!
  ...
end

# File lib/assistance/extract_options.rb, line 11
def extract_options!
  last.is_a?(Hash) ? pop : {}
end