<a href="https://github.com/curran/backboneComputedProperties">https://github.com/curran/backboneComputedProperties</a></p>
<p>Example usage:</p>
<pre><code><span class="hljs-keyword">var</span> model = <span class="hljs-keyword">new</span> Backbone.Model({
  firstName: <span class="hljs-string">"Jane"</span>,
  lastName: <span class="hljs-string">"Doe"</span>
});

model.wire([<span class="hljs-string">'firstName'</span>, <span class="hljs-string">'lastName'</span>], <span class="hljs-function"><span class=