 <p>As suggested in the comments, the Array <a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/filter" rel="nofollow">filter</a> method should give you what you want. Here's a start:</p> <pre><code>var filteredFilms = films.filter(function(film) { return parseInt(film.duration) &gt; 150 &amp;&amp; film.genre === 'Crime'; }); </code></pre>