✨ Features: #

• XUniqueList class with uniqueness enforcement using uniqueCondition.
• Added the following methods:
  • add(): Add a single item ensuring uniqueness.
  • addAll(): Add multiple items at once.
  • insert(): Insert an item at a specified index.
  • remove(): Remove an item by value.
  • removeOneWhere(): Remove the first item that matches a condition.
  • replaceOneWhere(): Replace an item based on a matching condition.
  • replaceOne(): Replace an item if it matches based on unique condition.

🛠 Utility Functions: #

• contains(): Check if an item is in the list based on the unique condition.
• clear(): Clear all items from the list.
• length: Retrieve the number of items in the list.
• isEmpty and isNotEmpty: Check if the list is empty or not.

📦 Access: #

• items: Retrieve an unmodifiable list of items.
• data: Retrieve a modifiable list of items.

✅ Testing: #

• Unit tests provided for all major functionality ensuring correctness and reliability.