Object initializer. Is it quicker than the old method? [duplicate]

This question already has answers here: .NET object creation, whats faster? (4 answers) Closed 9 years ago.

Which is quicker and why?

Person person = new Person();
person.FirstName = "Scott";
person.LastName = "Guthrie";
person.Age = 32;

of...

Person开发者_开发技巧 person = new Person { FirstName="Scott", LastName="Guthrie", Age=32 };

---

This is absolutely the wrong question to be asking*. You should be asking, 'which of the following is more readable?' This sort of micro-benchmarking leads to really obscure and hard to maintain code (although maybe not in this particular situation).

• The exception is a situation where you've profiled your code and found that this construct occurs in a very hot code path. However, if you had done that, you also would have benchmarked the two methods and found out the answer for yourself :-).

---

AFAIK, the latter is syntactic sugar for the former. There should be no difference.

---

The collection initializer notation will be "expanded" to the first notation at compile time so there should be no runtime costs.