title: How can I get a unique array based on object property using underscore
body: <p>I have an array of objects and I want to get a new array from it that is unique based only on a single property, is there a simple way to achieve this?</p>
  
  <p>Eg.</p>
  
  <pre><code>[ { id: 1, name: 'bob' }, { id: 1, name: 'bill' }, { id: 1, name: 'bill' } ]
  </code></pre>
  
  <p>Would result in 2 objects with name = bill removed once.</p>