Question d’entretien chez Sysvine Technologies
What is Virtual DOM in React?
Réponse à la question d'entretien
Utilisateur anonyme
9 janv. 2026
The Virtual DOM (Document Object Model) in React is an in-memory, lightweight JavaScript representation (a "virtual" copy) of the actual browser DOM [2]. It acts as a middle layer between component state changes and the actual browser DOM updates, efficiently calculating the minimal number of changes needed.