comma operator returns the value of the second operand?
<p>The links </p>

<p><a href="https://developer.mozilla.org/en/Core%5FJavaScript%5F1.5%5FReference/Operators/Special%5FOperators/Comma%5FOperator" rel="nofollow">https://developer.mozilla.org/en/Core_JavaScript_1.5_Reference/Operators/Special_Operators/Comma_Operator</a></p>

<p>says</p>

<blockquote>
  <p>The comma operator evaluates both of
  its operands (from left to right) and
  returns the value of the second
  operand.</p>
</blockquote>

<p>and as an example</p>

<pre><code>for (var i=0, j=9; i &lt;= 9; i++, j--)
  document.writeln("a["+i+"]["+j+"]= " + a[i][j]);
</code></pre>

<p>Unable to understand the point exactly. "returns the value of the second operand" - What it means?</p>

<p>Thanks for any help in advance.</p>
