C# 0 The Complete Reference

Implicitly Typed Arrays

As explained in Chapter 3, C# 3.0 adds the ability to declare implicitly typed variables by 

using the 

var

 keyword. These are variables whose type is determined by the compiler, based 

on the type of the initializing expression. Thus, all implicitly typed variables must be 

initialized. Using the same mechanism, it is also possible to create an implicitly typed array. 

As a general rule, implicitly typed arrays are for use in certain types of queries involving 

LINQ, which is described in Chapter 19. In most other cases, you will use the “normal” 

array declaration approach. Implicitly typed arrays are introduced here for completeness.

An implicitly typed array is declared using the keyword 

var

, but you 

do not

 follow