How to print array value by order or position?

I added the ff array inside HTML/JavaScript gadget:

["Label", "callback", "5"]

 
inside widget-content div I tried the ff code  but I don't think it's the 
right code...

<script expr:src='&quot;/feeds/posts/summary/-/&quot; + data:content[0] +
 &quot;?alt=json-in-script&amp;callback=&quot; + data:content[1] +
 &quot;&amp;max-results=&quot; + data:content[2] + &quot;&quot;' 
type='text/javascript'/>


outcome I wanted is:
<script expr:src='&quot;/feeds/posts/summary/-/Label
?alt=json-in-script&amp;callback=callback&amp;max-results=*5*&quot;' 
type='text/javascript'/>

Is there a way to do it with blogger codes only? thanks

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