Khalid Abuhakmeh 2/18/2025

The Curious Case of .NET ConcurrentDictionary and Closures

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This technical article investigates a common IDE suggestion in C# regarding ConcurrentDictionary and closures. It explains what closures are, their performance and concurrency implications, and provides a detailed guide on refactoring code to use the appropriate ConcurrentDictionary.GetOrAdd overload to eliminate unnecessary closures and improve efficiency.

The Curious Case of .NET ConcurrentDictionary and Closures

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