Javascript : var 3po = true;?
<p>I read some where else that following is illegal</p>

<pre><code>var 3po = true;
</code></pre>

<p>but </p>

<pre><code>var highNoon = false;
</code></pre>

<p>is legal.</p>

<p>Could someone explain what is all this means? Why the first statement is illegal while the second is legal?</p>
