title: Empty curly braces inside jQuery
body: <p>In the snippet, 
  <code>$({}).queue(function(next){})</code>
   what does <code>$({})</code> represent? Why do people use this form?</p>
  
  <p>I got the code from <a href="https://stackoverflow.com/questions/29263068/empty-curly-braces-inside-jquery/29263255?noredirect=1#comment46728693_29263255">this answer here on SO</a>.</p>