title: Filtering through a multidimensional array using underscore.js
body: <p>I have an array of <code>event</code> objects called <code>events</code>. Each <code>event</code> has <code>markets</code>, an array containing <code>market</code> objects. Inside here there is another array called <code>outcomes</code>, containing <code>outcome</code> objects.</p>
  
  <p>I want to use Underscore.js or some other method to find all of the events which have markets which have outcomes which have a property named <code>test</code>.</p>
  
  <p>I imagine this would be achieved using a series of filters but I didn't have much luck!</p>