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List or LinkedList: When Should I Choose Which?

Jan 19, 2025 pm 05:16 PM

List or LinkedList: When Should I Choose Which?

List and LinkedList: Making the Right Choice

The decision between using List<T> and LinkedList<T> hinges on your application's specific needs. Generally, List<T> is the preferred option for its versatility. However, LinkedList<T> offers distinct advantages in certain situations.

List<T> vs. LinkedList<T>: A Comparison

  • Insertion and Deletion: LinkedList<T> significantly outperforms List<T> when inserting or deleting elements from the middle of the collection. List<T> is only efficient for additions or removals at the end.

  • Sequential vs. Random Access: LinkedList<T> shines when iterating sequentially (forward or backward). Random access is less efficient because it requires traversing the linked list. In contrast, List<T>, being array-based, provides fast random access.

  • Method Support: List<T> boasts a broader range of built-in methods, including Find and ToArray. However, LinkedList<T> provides similar functionality via extension methods available since .NET 3.5/C# 3.0.

In Summary

While LinkedList<T> offers benefits in specialized scenarios, List<T> remains the more practical and widely applicable choice for most applications. Carefully weigh the factors outlined above to determine the optimal data structure for your specific needs.

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