How does the concept of 'generations' apply to modern garbage collection algorithms?
The concept of generations in garbage collection: 1) Generational GC divides the heap into regions (generations) based on object age, 2) New objects are allocated in the 'young generation' or 'nursery', 3) Objects that survive several collection cycles are promoted to the 'old generation' (tenured space), 4) This approach is based on the empirical observation that most objects die young (infant mortality), 5) Young generation collections (minor GC) happen frequently and quickly, 6) Old generation collections (major GC) occur less frequently but are more thorough, 7) This strategy optimizes performance by focusing collection efforts where they're most effective, 8) Modern JavaScript engines like V8 use variations of generational garbage collection to improve efficiency.