3 ms·

It has the same use as most of the patterns: working around the brokenness of the popular OO languages of the time.

• icky 19y ago
  To the anonymous downvoter, evidence of your ignorance: http://norvig.com/design-patterns/ http://norvig.com/design-patterns/
  • boucher 19y ago
    I fail to see how this is evidence of anyone's ignorance.
    • icky 19y ago
      Read the slides.