title: Will using 'var' affect performance?
body: <p>Earlier I asked a question about <a href="https://stackoverflow.com/questions/335682/mvc-examples-use-of-var">why I see so many examples use the <code>var</code>keyword</a> and got the answer that while it is only necessary for anonymous types, that it is used nonetheless to make writing code 'quicker'/easier and 'just because'.</p>
  
  <p>Following <a href="http://www.interact-sw.co.uk/iangblog/2005/09/23/varisntobject" rel="noreferrer">this link ("C# 3.0 - Var Isn't Objec")</a> I saw that <code>var</code> gets compiled down to the correct type in the IL (you will see it about midway down article).</p>
  
  <p>My question is how much more, if any, IL code does using the <code>var</code> keyword take, and would it be even close to having a measurable level on the performance of the code if it was used everywhere?</p>