title: calculate a number without a variable in javascript
body: <p>Given this code: </p>
  
  <pre><code>if(ipadmenuheight &lt; contentheight).css('top', '' + contentheight + 44 + 'px');
  </code></pre>
  
  <p>Let's say <code>contentheight=500</code></p>
  
  <p>then this code snippet returns <code>50044px</code>. How can it be a sum instead and return  <code>544px</code>?</p>
  
  <p>Do I need to use a variable or can I do this inline?</p>