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Resharper certainly thinks so, and out of the box it will nag you to convert
Dooberry dooberry = new Dooberry(); to
var dooberry = new Dooberry(); Is that really considered the best style?
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Implicitly typed variables are those variables which are declared without specifying the . NET type explicitly. In implicitly typed variable, the type of the variable is automatically deduced at compile time by the compiler from the value used to initialize the variable.
Implicit variables are variables that you do not define. These variables are automatically provided by the framework. Some implicit variables are not associated with any other variables, while other implicit variables are valid only when they are associated with a variable that you declare.
C# var keyword is used to declare implicit type variables.
Local variables can be faster because the optimizer can store them in registers. In C++ in general, you can't make a statement about the performance difference.
It's of course a matter of style, but I agree with Dare: C# 3.0 Implicit Type Declarations: To var or not to var?. I think using var instead of an explicit type makes your code less readable.In the following code:
var result = GetUserID(); What is result? An int, a string, a GUID? Yes, it matters, and no, I shouldn't have to dig through the code to know. It's especially annoying in code samples.
Jeff wrote a post on this, saying he favors var. But that guy's crazy!
I'm seeing a pattern for stackoverflow success: dig up old CodingHorror posts and (Jeopardy style) phrase them in terms of a question.
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