CODEWITHSUNDEEP
c#linqgenerics
Ed Guiness
Ed Guiness

Reputation: 35277

Is there any significant difference between List.Last() and List.Last<T>()?

Given a list of rectangles,

var myList = new List<Rectangle>();

I cannot add anything but Rectangles to this list, so what factors would make me prefer 

Rectangle lastRect = myList.Last<Rectangle>();

over simply

Rectangle lastRect = myList.Last();

Upvotes: 1

Views: 227

Answers (2)

David_001
David_001

Reputation: 5812

To support Rubys's answer, the compiler infers the type when you call the Last method without a type parameter.

The final IL that gets generated is exactly the same - I just checked.

Upvotes: 1

Rubys
Rubys

Reputation: 3207

These are exactly the same.
The thing is, the compiler uses type inference to understand what the type is, if possible.
It sees you're using a generic function on a generic type, and tries to match between them. And it works.

Short answer: These are the same, but the compiler adds the <Rectangle> for you, using type inference.

Upvotes: 5

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