What does () => mean in C#?

Question

I\'ve been reading through the source code for Moq and I came across the following unit test:

Assert.Throws(() => Times         


        

Answer 1

Search StackOverflow for "lambda".

Specifically:

() => Console.WriteLine("Hi!");

That means "a method that takes no arguments and returns void, and when you call it, it writes the message to the console."

You can store it in an Action variable:

Action a = () => Console.WriteLine("Hi!");

And then you can call it:

a();