I'm curious about the differences between calling a Func directly vs using Invoke() on it. Is there a difference ? Is the first, syntactical sugar, and calls Invoke() underneath anyway ?
public T DoWork<T>(Func<T> method)
{
return (T)method.Invoke();
}
vs
public T DoWork<T>(Func<T> method)
{
return (T)method();
}
Or am I on the wrong track entirely :) Thanks.
There's no difference at all. The second is just a shorthand for Invoke
, provided by the compiler. They compile to the same IL.
Invoke works well with new C# 6 null propagation operator, now u can do
T result = method?.Invoke();
instead of
T result = method != null ? method() : null;
来源:https://stackoverflow.com/questions/16309286/funct-vs-funct-invoke