What Advantages of Extension Methods have you found? [closed]

by

The only advantage of extension methods is code readability. That’s it.

Extension methods allow you to do this:

foo.bar();

instead of this:

Util.bar(foo);

Now there are a lot of things in C# that are like this. In other words there are many features in C# that seem trivial and don’t have great benefit in and of themselves. However once you begin combining these features together you begin to see something just a bit bigger than the sum of its parts. LINQ benefits greatly from extension methods as LINQ queries would be almost unreadable without them. LINQ would be possible without extension methods, but not practical.

Extension methods are a lot like C#’s partial classes. By themselves they are not very helpful and seem trivial. But when you start working with a class that needs generated code, partial classes start to make a lot more sense.

More Related Contents:

  1. Distinct() with lambda?
  2. Mocking Extension Methods with Moq
  3. Convert string[] to int[] in one line of code using LINQ
  4. Reflection to Identify Extension Methods
  5. Detect target framework version at compile time
  6. Impossible to use ref and out for first (“this”) parameter in Extension methods?
  7. Extension methods must be defined in a non-generic static class
  8. Operator Overloading with C# Extension Methods
  9. In C#, what happens when you call an extension method on a null object?
  10. Convert string to nullable type (int, double, etc…)
  11. Is there any way in C# to override a class method with an extension method?
  12. Why can’t I call an extension method from a base class of the extended type‏?
  13. Interesting “params of ref” feature, any workarounds?
  14. How to extend C# built-in types, like String?
  15. Extension method on enumeration, not instance of enumeration
  16. The operation cannot be completed because the DbContext has been disposed error
  17. AddRange to a Collection
  18. FindAll vs Where extension-method
  19. Extension method priority
  20. Is it appropriate to extend Control to provide consistently safe Invoke/BeginInvoke functionality?
  21. Possible pitfalls of using this (extension method based) shorthand
  22. How can I get an extension method to change the original object?
  23. Using extension methods in .NET 2.0?
  24. Warm-up when calling methods in C#
  25. Code equivalent to the ‘let’ keyword in chained LINQ extension method calls
  26. How do I extend a class with c# extension methods? [duplicate]
  27. Can’t await async extension method
  28. F# extension methods in C#
  29. Why is it impossible to declare extension methods in a generic static class?
  30. What causes “extension methods cannot be dynamically dispatched” here?

Leave a Comment