Class: Array

Inherits:
Object show all
Defined in:
lib/assistance/extract_options.rb

Overview

Array extensions

Instance Method Summary collapse

Instance Method Details

#extract_options! ⇒ Object

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



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# File 'lib/assistance/extract_options.rb', line 11

def extract_options!
  last.is_a?(Hash) ? pop : {}
end