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// Note subset is an IEnumerable compatible object.

IEnumerable subset = from g in currentVideoGames

where g.Length > 6

orderby g

select g;

return subset;

}

}

This example works as expected, only because the return value of the GetStringSubset() and

the LINQ query within this method has been strongly typed. If you used the var keyword to define

the subset variable, it would be permissible to return the value 

only if the method is still prototyped

to return IEnumerable (and if the implicitly typed local variable is in fact compatible with

the specified return type).

However, always remember that when you have a LINQ query that makes use of a projection,

you have no way of knowing the underlying data type, as this is determined at compile time. In

these cases, the var keyword is mandatory; therefore, the following code method would not

compile: