JavaScript official keywords shortcuts
<p>I've seen something similar to this code in the Google API JavaScript, I mean the r=Array part. Here is an example of what they have done:</p>

<pre><code>var r = Array;
var t = new r('sdsd' , 'sdsd');
alert(t[0]);
</code></pre>

<p>Few questions about this:</p>

<ol>
<li>Is it legal to write like this and won't cause any problems?</li>
<li>I can do something similar with other keywords like ´For´ loop or with the ´this´ keyword?</li>
<li>Can I have article about this JavaScript official keyword shortcuts etc..?</li>
</ol>

<p>Thank you in advance.</p>
