ਆਧੁਨਿਕ ਪ੍ਰੋਗ੍ਰਾਮਿੰਗ ਵਿੱਚ ਡਿਜ਼ਾਇਨ ਪੈਟਰਨ ਕਿਵੇਂ ਵਿਕਸਿਤ ਹੋਏ ਹਨ?

Some GoF patterns are now LANGUAGE FEATURES or much simpler:
  → ITERATOR → built-in iteration (for-of, generators) in most languages
  → STRATEGY / Command → first-class FUNCTIONS / lambdas make these trivial (just pass a
    function — no need for elaborate class hierarchies)
  → OBSERVER → built-in events, reactive libraries, language features (signals)
  → SINGLETON → modules (a module is effectively a singleton in many languages)
→ functional features (functions as values) simplified many "behavioral" patterns