Implementasi Stack pada Sistem Reservasi Restoran Berbasis Web dengan Stack-based History Management

Maria Winarni Br. Silitonga (Ilmu Komputer, Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Negeri Medan,)
Sahara Lani Lestari (Universitas Negeri Medan)
Angelica Barus (Universitas Negeri Medan)

Journal Of Informatics And Busisnes
Vol. 3 No. 3 (2025): Oktober - Desember

Web-based restaurant reservation systems are susceptible to user input errors that negatively affect operations and customer experience. This paper presents a prototype reservation application that integrates stack-based history management to provide Undo/Redo functionality, change tracking, and real-time reservation preview. The system is implemented with HTML, CSS, and JavaScript; history is managed using two stacks (undoStack and redoStack) implemented via JavaScript arrays, and LocalStorage is used for session persistence in the demo. Core operations (push/pop/peek) execute in O(1) time, ensuring responsive performance in small to medium-scale scenarios. Functional testing confirms the Undo/Redo behavior and improved error recovery and auditability. Limitations include large history memory usage and lack of multi-user synchronization; future work should explore backend persistence and synchronization techniques (e.g., CRDT or OT) for real-time collaborative support.