title: javascript var statement and performance
body: <p><strong>Option1 : multiple var without assignment</strong></p>
  
  <pre><code>function MyFunction() {
  
    var a = null;
    var b = null;
    ....
    var z = null;
  
    a = SomeValue;
    b = SomeValue2;
    ....
  }
  </code></pre>
  
  <p><strong>Option 2: one var statement, no assignment</strong></p>
  
  <pre><code>function MyFunction() {
  
    var a, b ..., z;
  
    a = SomeValue;
    b = SomeValue2;
    ....
  }
  </code></pre>
  
  <p><strong>Option 3: multiple var statements with assignment</strong></p>
  
  <pre><code>function MyFunction() {
  
    var a = SomeValue;
    var b = SomeValue2;
    ....
    var z = SomeValue26;
  }
  </code></pre>
  
  <p>Is there any performance benefit of using a particular option? Is it true for both primitive type assignments <strong><code>AND</code></strong> object reference assignments?</p>
  
  <p>Thanks for your input.</p>