JavaScript HashMap & HashSet Implementation

A custom-built implementation of HashMap and HashSet in JavaScript with collision handling, dynamic resizing, and a web UI for easy interaction and testing.

Overview

This project replicates core behaviors of hash-based data structures, demonstrating how keys are hashed, collisions are managed, and capacity is scaled. A simple and interactive UI is included to manipulate and test the data structures in real time.

Features

HashMap

• set(key, value), get(key), has(key), remove(key), length(), clear(), keys(), values(), entries()
• Collision handling with separate chaining
• Dynamic resizing when load factor is exceeded
• Protection against out-of-bounds access

HashSet

• Stores unique keys (no values)
• add, has, remove, clear, keys, length

Unit Testing

Click the Run Tests button in the UI to validate core features of both structures.

Web UI

Use the HTML interface to interact with both HashMap and HashSet.

Usage

1. Download or clone the repository
2. Open index.html in your browser
3. Use the form and buttons to interact with the data structures

Files

• index.html – Interactive UI and logic
• README.md – Project documentation